Mercurial > cpython-lru_cache-weakref

annotate Python/_warnings.c @ 81257:c256764e2b3f 3.2

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Issue #16455: On FreeBSD and Solaris, if the locale is C, the ASCII/surrogateescape codec is now used, instead of the locale encoding, to decode the command line arguments. This change fixes inconsistencies with os.fsencode() and os.fsdecode() because these operating systems announces an ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.
author Victor Stinner <victor.stinner@gmail.com>
date Thu, 03 Jan 2013 01:08:58 +0100
parents ee0c9ca09c84
children b7c5e30582d1
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1 #include "Python.h"
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2 #include "frameobject.h"
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4 #define MODULE_NAME "_warnings"
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6 PyDoc_STRVAR(warnings__doc__,
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7 MODULE_NAME " provides basic warning filtering support.\n"
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8 "It is a helper module to speed up interpreter start-up.");
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10 /* Both 'filters' and 'onceregistry' can be set in warnings.py;
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11 get_warnings_attr() will reset these variables accordingly. */
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12 static PyObject *_filters; /* List */
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13 static PyObject *_once_registry; /* Dict */
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14 static PyObject *_default_action; /* String */
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17 static int
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18 check_matched(PyObject *obj, PyObject *arg)
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19 {
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20 PyObject *result;
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21 int rc;
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23 if (obj == Py_None)
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24 return 1;
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25 result = PyObject_CallMethod(obj, "match", "O", arg);
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26 if (result == NULL)
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27 return -1;
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29 rc = PyObject_IsTrue(result);
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30 Py_DECREF(result);
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31 return rc;
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32 }
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34 /*
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35 Returns a new reference.
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36 A NULL return value can mean false or an error.
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37 */
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38 static PyObject *
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39 get_warnings_attr(const char *attr)
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40 {
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41 static PyObject *warnings_str = NULL;
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42 PyObject *all_modules;
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43 PyObject *warnings_module;
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44 int result;
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46 if (warnings_str == NULL) {
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47 warnings_str = PyUnicode_InternFromString("warnings");
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48 if (warnings_str == NULL)
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49 return NULL;
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50 }
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52 all_modules = PyImport_GetModuleDict();
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53 result = PyDict_Contains(all_modules, warnings_str);
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54 if (result == -1 || result == 0)
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55 return NULL;
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57 warnings_module = PyDict_GetItem(all_modules, warnings_str);
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58 if (!PyObject_HasAttrString(warnings_module, attr))
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59 return NULL;
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60 return PyObject_GetAttrString(warnings_module, attr);
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61 }
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63
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64 static PyObject *
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65 get_once_registry(void)
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66 {
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67 PyObject *registry;
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68
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69 registry = get_warnings_attr("onceregistry");
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70 if (registry == NULL) {
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71 if (PyErr_Occurred())
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72 return NULL;
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73 return _once_registry;
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74 }
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75 Py_DECREF(_once_registry);
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76 _once_registry = registry;
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77 return registry;
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78 }
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79
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80
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81 static PyObject *
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82 get_default_action(void)
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83 {
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84 PyObject *default_action;
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85
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86 default_action = get_warnings_attr("defaultaction");
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87 if (default_action == NULL) {
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88 if (PyErr_Occurred()) {
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89 return NULL;
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90 }
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91 return _default_action;
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92 }
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93
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94 Py_DECREF(_default_action);
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95 _default_action = default_action;
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96 return default_action;
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97 }
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98
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99
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100 /* The item is a borrowed reference. */
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101 static const char *
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102 get_filter(PyObject *category, PyObject *text, Py_ssize_t lineno,
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103 PyObject *module, PyObject **item)
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104 {
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105 PyObject *action;
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106 Py_ssize_t i;
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107 PyObject *warnings_filters;
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108
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109 warnings_filters = get_warnings_attr("filters");
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110 if (warnings_filters == NULL) {
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111 if (PyErr_Occurred())
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112 return NULL;
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113 }
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114 else {
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115 Py_DECREF(_filters);
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116 _filters = warnings_filters;
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117 }
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118
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119 if (_filters == NULL || !PyList_Check(_filters)) {
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120 PyErr_SetString(PyExc_ValueError,
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121 MODULE_NAME ".filters must be a list");
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122 return NULL;
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123 }
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124
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125 /* _filters could change while we are iterating over it. */
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126 for (i = 0; i < PyList_GET_SIZE(_filters); i++) {
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127 PyObject *tmp_item, *action, *msg, *cat, *mod, *ln_obj;
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128 Py_ssize_t ln;
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129 int is_subclass, good_msg, good_mod;
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130
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131 tmp_item = *item = PyList_GET_ITEM(_filters, i);
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132 if (PyTuple_Size(tmp_item) != 5) {
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133 PyErr_Format(PyExc_ValueError,
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134 MODULE_NAME ".filters item %zd isn't a 5-tuple", i);
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135 return NULL;
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136 }
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137
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138 /* Python code: action, msg, cat, mod, ln = item */
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139 action = PyTuple_GET_ITEM(tmp_item, 0);
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140 msg = PyTuple_GET_ITEM(tmp_item, 1);
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141 cat = PyTuple_GET_ITEM(tmp_item, 2);
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142 mod = PyTuple_GET_ITEM(tmp_item, 3);
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143 ln_obj = PyTuple_GET_ITEM(tmp_item, 4);
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144
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145 good_msg = check_matched(msg, text);
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146 good_mod = check_matched(mod, module);
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147 is_subclass = PyObject_IsSubclass(category, cat);
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148 ln = PyLong_AsSsize_t(ln_obj);
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149 if (good_msg == -1 || good_mod == -1 || is_subclass == -1 ||
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150 (ln == -1 && PyErr_Occurred()))
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151 return NULL;
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152
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153 if (good_msg && is_subclass && good_mod && (ln == 0 || lineno == ln))
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154 return _PyUnicode_AsString(action);
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155 }
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156
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157 action = get_default_action();
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158 if (action != NULL) {
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159 return _PyUnicode_AsString(action);
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160 }
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161
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162 PyErr_SetString(PyExc_ValueError,
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163 MODULE_NAME ".defaultaction not found");
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164 return NULL;
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165 }
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166
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167
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168 static int
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169 already_warned(PyObject *registry, PyObject *key, int should_set)
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170 {
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171 PyObject *already_warned;
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172
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173 if (key == NULL)
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174 return -1;
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175
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176 already_warned = PyDict_GetItem(registry, key);
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177 if (already_warned != NULL) {
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178 int rc = PyObject_IsTrue(already_warned);
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179 if (rc != 0)
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180 return rc;
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181 }
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182
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183 /* This warning wasn't found in the registry, set it. */
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184 if (should_set)
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185 return PyDict_SetItem(registry, key, Py_True);
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186 return 0;
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187 }
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188
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189 /* New reference. */
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190 static PyObject *
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191 normalize_module(PyObject *filename)
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192 {
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193 PyObject *module;
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194 const char *mod_str;
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195 Py_ssize_t len;
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196
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197 int rc = PyObject_IsTrue(filename);
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198 if (rc == -1)
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199 return NULL;
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200 else if (rc == 0)
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201 return PyUnicode_FromString("<unknown>");
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202
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203 mod_str = _PyUnicode_AsString(filename);
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204 if (mod_str == NULL)
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205 return NULL;
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206 len = PyUnicode_GetSize(filename);
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207 if (len < 0)
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208 return NULL;
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209 if (len >= 3 &&
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210 strncmp(mod_str + (len - 3), ".py", 3) == 0) {
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211 module = PyUnicode_FromStringAndSize(mod_str, len-3);
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212 }
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213 else {
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214 module = filename;
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215 Py_INCREF(module);
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216 }
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217 return module;
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218 }
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219
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220 static int
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221 update_registry(PyObject *registry, PyObject *text, PyObject *category,
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222 int add_zero)
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223 {
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224 PyObject *altkey, *zero = NULL;
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225 int rc;
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226
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227 if (add_zero) {
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228 zero = PyLong_FromLong(0);
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229 if (zero == NULL)
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230 return -1;
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231 altkey = PyTuple_Pack(3, text, category, zero);
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232 }
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233 else
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234 altkey = PyTuple_Pack(2, text, category);
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235
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236 rc = already_warned(registry, altkey, 1);
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237 Py_XDECREF(zero);
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238 Py_XDECREF(altkey);
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239 return rc;
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240 }
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241
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242 static void
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243 show_warning(PyObject *filename, int lineno, PyObject *text, PyObject
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244 *category, PyObject *sourceline)
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245 {
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246 PyObject *f_stderr;
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247 PyObject *name;
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248 char lineno_str[128];
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249
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250 PyOS_snprintf(lineno_str, sizeof(lineno_str), ":%d: ", lineno);
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251
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252 name = PyObject_GetAttrString(category, "__name__");
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253 if (name == NULL) /* XXX Can an object lack a '__name__' attribute? */
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254 return;
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255
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256 f_stderr = PySys_GetObject("stderr");
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257 if (f_stderr == NULL) {
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258 fprintf(stderr, "lost sys.stderr\n");
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259 Py_DECREF(name);
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260 return;
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261 }
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262
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263 /* Print "filename:lineno: category: text\n" */
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264 PyFile_WriteObject(filename, f_stderr, Py_PRINT_RAW);
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265 PyFile_WriteString(lineno_str, f_stderr);
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266 PyFile_WriteObject(name, f_stderr, Py_PRINT_RAW);
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267 PyFile_WriteString(": ", f_stderr);
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268 PyFile_WriteObject(text, f_stderr, Py_PRINT_RAW);
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269 PyFile_WriteString("\n", f_stderr);
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270 Py_XDECREF(name);
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271
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272 /* Print " source_line\n" */
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273 if (sourceline) {
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274 char *source_line_str = _PyUnicode_AsString(sourceline);
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275 if (source_line_str == NULL)
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276 return;
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277 while (*source_line_str == ' ' || *source_line_str == '\t' ||
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278 *source_line_str == '\014')
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279 source_line_str++;
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280
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281 PyFile_WriteString(source_line_str, f_stderr);
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282 PyFile_WriteString("\n", f_stderr);
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283 }
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284 else
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285 if (_Py_DisplaySourceLine(f_stderr, filename, lineno, 2) < 0)
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286 return;
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287 PyErr_Clear();
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288 }
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289
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290 static PyObject *
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291 warn_explicit(PyObject *category, PyObject *message,
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292 PyObject *filename, int lineno,
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293 PyObject *module, PyObject *registry, PyObject *sourceline)
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294 {
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295 PyObject *key = NULL, *text = NULL, *result = NULL, *lineno_obj = NULL;
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296 PyObject *item = Py_None;
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297 const char *action;
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298 int rc;
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299
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300 if (registry && !PyDict_Check(registry) && (registry != Py_None)) {
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301 PyErr_SetString(PyExc_TypeError, "'registry' must be a dict");
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302 return NULL;
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303 }
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304
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305 /* Normalize module. */
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306 if (module == NULL) {
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307 module = normalize_module(filename);
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308 if (module == NULL)
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309 return NULL;
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310 }
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311 else
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parents:
diff changeset
312 Py_INCREF(module);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
313
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parents:
diff changeset
314 /* Normalize message. */
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parents:
diff changeset
315 Py_INCREF(message); /* DECREF'ed in cleanup. */
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parents:
diff changeset
316 rc = PyObject_IsInstance(message, PyExc_Warning);
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parents:
diff changeset
317 if (rc == -1) {
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
318 goto cleanup;
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parents:
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319 }
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parents:
diff changeset
320 if (rc == 1) {
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parents:
diff changeset
321 text = PyObject_Str(message);
55293
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Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp>
parents: 52659
diff changeset
322 if (text == NULL)
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Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp>
parents: 52659
diff changeset
323 goto cleanup;
46430
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
324 category = (PyObject*)message->ob_type;
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diff changeset
325 }
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diff changeset
326 else {
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diff changeset
327 text = message;
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diff changeset
328 message = PyObject_CallFunction(category, "O", message);
48371
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diff changeset
329 if (message == NULL)
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330 goto cleanup;
46430
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331 }
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
332
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Christian Heimes <christian@cheimes.de>
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diff changeset
333 lineno_obj = PyLong_FromLong(lineno);
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diff changeset
334 if (lineno_obj == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
335 goto cleanup;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
336
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diff changeset
337 /* Create key. */
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diff changeset
338 key = PyTuple_Pack(3, text, category, lineno_obj);
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diff changeset
339 if (key == NULL)
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parents:
diff changeset
340 goto cleanup;
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parents:
diff changeset
341
48371
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342 if ((registry != NULL) && (registry != Py_None)) {
46430
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343 rc = already_warned(registry, key, 0);
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diff changeset
344 if (rc == -1)
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345 goto cleanup;
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346 else if (rc == 1)
46430
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diff changeset
347 goto return_none;
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diff changeset
348 /* Else this warning hasn't been generated before. */
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349 }
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diff changeset
350
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Christian Heimes <christian@cheimes.de>
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diff changeset
351 action = get_filter(category, text, lineno, module, &item);
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diff changeset
352 if (action == NULL)
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parents:
diff changeset
353 goto cleanup;
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parents:
diff changeset
354
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diff changeset
355 if (strcmp(action, "error") == 0) {
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diff changeset
356 PyErr_SetObject(category, message);
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parents:
diff changeset
357 goto cleanup;
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diff changeset
358 }
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
359
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diff changeset
360 /* Store in the registry that we've been here, *except* when the action
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parents:
diff changeset
361 is "always". */
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parents:
diff changeset
362 rc = 0;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
363 if (strcmp(action, "always") != 0) {
48371
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parents: 47580
diff changeset
364 if (registry != NULL && registry != Py_None &&
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parents: 47580
diff changeset
365 PyDict_SetItem(registry, key, Py_True) < 0)
46430
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
366 goto cleanup;
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parents:
diff changeset
367 else if (strcmp(action, "ignore") == 0)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
368 goto return_none;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
369 else if (strcmp(action, "once") == 0) {
48371
605ab6f92838 Merged revisions 64549 via svnmerge from
Brett Cannon <bcannon@gmail.com>
parents: 47580
diff changeset
370 if (registry == NULL || registry == Py_None) {
46430
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
371 registry = get_once_registry();
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
372 if (registry == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
373 goto cleanup;
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
374 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
375 /* _once_registry[(text, category)] = 1 */
61467
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diff changeset
376 rc = update_registry(registry, text, category, 0);
46430
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parents:
diff changeset
377 }
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parents:
diff changeset
378 else if (strcmp(action, "module") == 0) {
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
379 /* registry[(text, category, 0)] = 1 */
48371
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diff changeset
380 if (registry != NULL && registry != Py_None)
61467
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diff changeset
381 rc = update_registry(registry, text, category, 0);
46430
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parents:
diff changeset
382 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
383 else if (strcmp(action, "default") != 0) {
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parents:
diff changeset
384 PyObject *to_str = PyObject_Str(item);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
385 const char *err_str = "???";
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
386
48953
3bdc46faef4d The _warnings module did not properly handle cases where strings were not being
Brett Cannon <bcannon@gmail.com>
parents: 48952
diff changeset
387 if (to_str != NULL) {
48660
85b67fb5672b Rename PyUnicode_AsString -> _PyUnicode_AsString and
Marc-André Lemburg <mal@egenix.com>
parents: 48499
diff changeset
388 err_str = _PyUnicode_AsString(to_str);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
389 if (err_str == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
390 goto cleanup;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
391 }
46430
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parents:
diff changeset
392 PyErr_Format(PyExc_RuntimeError,
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
393 "Unrecognized action (%s) in warnings.filters:\n %s",
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parents:
diff changeset
394 action, err_str);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
395 Py_XDECREF(to_str);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
396 goto cleanup;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
397 }
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parents:
diff changeset
398 }
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
399
49387
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Christian Heimes <christian@cheimes.de>
parents: 48953
diff changeset
400 if (rc == 1) /* Already warned for this module. */
46430
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
401 goto return_none;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
402 if (rc == 0) {
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
403 PyObject *show_fxn = get_warnings_attr("showwarning");
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
404 if (show_fxn == NULL) {
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parents:
diff changeset
405 if (PyErr_Occurred())
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
406 goto cleanup;
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parents:
diff changeset
407 show_warning(filename, lineno, text, category, sourceline);
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parents:
diff changeset
408 }
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parents:
diff changeset
409 else {
48952
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
410 PyObject *res;
46708
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Christian Heimes <christian@cheimes.de>
parents: 46690
diff changeset
411
48952
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
412 if (!PyMethod_Check(show_fxn) && !PyFunction_Check(show_fxn)) {
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
413 PyErr_SetString(PyExc_TypeError,
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
414 "warnings.showwarning() must be set to a "
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
415 "function or method");
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
416 Py_DECREF(show_fxn);
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
417 goto cleanup;
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
418 }
46708
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parents: 46690
diff changeset
419
48952
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Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
420 res = PyObject_CallFunctionObjArgs(show_fxn, message, category,
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
421 filename, lineno_obj,
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
422 NULL);
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
423 Py_DECREF(show_fxn);
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
424 Py_XDECREF(res);
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
425 if (res == NULL)
caa41e161b04 Merge in r66135. Doing also required removing a stale DeprecationWarning along
Brett Cannon <bcannon@gmail.com>
parents: 48660
diff changeset
426 goto cleanup;
46430
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diff changeset
427 }
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parents:
diff changeset
428 }
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diff changeset
429 else /* if (rc == -1) */
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
430 goto cleanup;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
431
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diff changeset
432 return_none:
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diff changeset
433 result = Py_None;
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diff changeset
434 Py_INCREF(result);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
435
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
436 cleanup:
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parents:
diff changeset
437 Py_XDECREF(key);
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diff changeset
438 Py_XDECREF(text);
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parents:
diff changeset
439 Py_XDECREF(lineno_obj);
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diff changeset
440 Py_DECREF(module);
48371
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diff changeset
441 Py_XDECREF(message);
46430
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diff changeset
442 return result; /* Py_None or NULL. */
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diff changeset
443 }
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parents:
diff changeset
444
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parents:
diff changeset
445 /* filename, module, and registry are new refs, globals is borrowed */
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diff changeset
446 /* Returns 0 on error (no new refs), 1 on success */
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
447 static int
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diff changeset
448 setup_context(Py_ssize_t stack_level, PyObject **filename, int *lineno,
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parents:
diff changeset
449 PyObject **module, PyObject **registry)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
450 {
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
451 PyObject *globals;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
452
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
453 /* Setup globals and lineno. */
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diff changeset
454 PyFrameObject *f = PyThreadState_GET()->frame;
46690
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parents: 46665
diff changeset
455 while (--stack_level > 0 && f != NULL)
46430
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diff changeset
456 f = f->f_back;
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parents:
diff changeset
457
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
458 if (f == NULL) {
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
459 globals = PyThreadState_Get()->interp->sysdict;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
460 *lineno = 1;
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parents:
diff changeset
461 }
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parents:
diff changeset
462 else {
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parents:
diff changeset
463 globals = f->f_globals;
55372
79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from
Alexandre Vassalotti <alexandre@peadrop.com>
parents: 55293
diff changeset
464 *lineno = PyFrame_GetLineNumber(f);
46430
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parents:
diff changeset
465 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
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parents:
diff changeset
466
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parents:
diff changeset
467 *module = NULL;
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parents:
diff changeset
468
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parents:
diff changeset
469 /* Setup registry. */
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parents:
diff changeset
470 assert(globals != NULL);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
471 assert(PyDict_Check(globals));
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parents:
diff changeset
472 *registry = PyDict_GetItemString(globals, "__warningregistry__");
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parents:
diff changeset
473 if (*registry == NULL) {
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parents:
diff changeset
474 int rc;
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parents:
diff changeset
475
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
476 *registry = PyDict_New();
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
477 if (*registry == NULL)
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
478 return 0;
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
479
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
480 rc = PyDict_SetItemString(globals, "__warningregistry__", *registry);
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
481 if (rc < 0)
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
482 goto handle_error;
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
483 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
484 else
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
485 Py_INCREF(*registry);
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
486
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
487 /* Setup module. */
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
488 *module = PyDict_GetItemString(globals, "__name__");
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
489 if (*module == NULL) {
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
490 *module = PyUnicode_FromString("<string>");
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
491 if (*module == NULL)
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
492 goto handle_error;
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
493 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
494 else
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
495 Py_INCREF(*module);
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
496
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
497 /* Setup filename. */
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
498 *filename = PyDict_GetItemString(globals, "__file__");
71173
ac18e70cbe7e Issue #12467: warnings: fix a race condition if a warning is emitted at
Victor Stinner <victor.stinner@haypocalc.com>
parents: 68489
diff changeset
499 if (*filename != NULL && PyUnicode_Check(*filename)) {
46664
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
500 Py_ssize_t len = PyUnicode_GetSize(*filename);
63851
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
501 Py_UNICODE *unicode = PyUnicode_AS_UNICODE(*filename);
46430
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
502
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
503 /* if filename.lower().endswith((".pyc", ".pyo")): */
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
504 if (len >= 4 &&
63851
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
505 unicode[len-4] == '.' &&
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
506 Py_UNICODE_TOLOWER(unicode[len-3]) == 'p' &&
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
507 Py_UNICODE_TOLOWER(unicode[len-2]) == 'y' &&
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
508 (Py_UNICODE_TOLOWER(unicode[len-1]) == 'c' ||
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
509 Py_UNICODE_TOLOWER(unicode[len-1]) == 'o'))
46664
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
510 {
63851
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
511 *filename = PyUnicode_FromUnicode(unicode, len-1);
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
512 if (*filename == NULL)
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
513 goto handle_error;
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
514 }
7d4425e308f7 Issue #9425: fix setup_context() for non-ascii filenames
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62582
diff changeset
515 else
46430
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
516 Py_INCREF(*filename);
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
517 }
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
518 else {
48660
85b67fb5672b Rename PyUnicode_AsString -> _PyUnicode_AsString and
Marc-André Lemburg <mal@egenix.com>
parents: 48499
diff changeset
519 const char *module_str = _PyUnicode_AsString(*module);
71220
7eb85a23cf3d start out this branch always with filename NULL
Benjamin Peterson <benjamin@python.org>
parents: 71178
diff changeset
520 *filename = NULL;
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
521 if (module_str == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
522 goto handle_error;
48953
3bdc46faef4d The _warnings module did not properly handle cases where strings were not being
Brett Cannon <bcannon@gmail.com>
parents: 48952
diff changeset
523 if (strcmp(module_str, "__main__") == 0) {
46430
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
524 PyObject *argv = PySys_GetObject("argv");
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
525 if (argv != NULL && PyList_Size(argv) > 0) {
46664
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
526 int is_true;
46430
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
527 *filename = PyList_GetItem(argv, 0);
47d9bbe10897 Merged revisions 62260-62261,62266,62271,62277-62279,62289-62290,62293-62298,62302-62306,62308,62311,62313-62315,62319-62321 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
diff changeset
528 Py_INCREF(*filename);
46664
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
529 /* If sys.argv[0] is false, then use '__main__'. */
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
530 is_true = PyObject_IsTrue(*filename);
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
531 if (is_true < 0) {
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
532 Py_DECREF(*filename);
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
533 goto handle_error;
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
534 }
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
535 else if (!is_true) {
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
536 Py_DECREF(*filename);
46665
c7c25cc9963d Fix merge error
Benjamin Peterson <benjamin@python.org>
parents: 46664
diff changeset
537 *filename = PyUnicode_FromString("__main__");
46664
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
538 if (*filename == NULL)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
539 goto handle_error;
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 46453
diff changeset
540 }
46430
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541 }
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542 else {
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543 /* embedded interpreters don't have sys.argv, see bug #839151 */
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544 *filename = PyUnicode_FromString("__main__");
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545 if (*filename == NULL)
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546 goto handle_error;
46430
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547 }
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548 }
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549 if (*filename == NULL) {
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550 *filename = *module;
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551 Py_INCREF(*filename);
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552 }
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553 }
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554
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555 return 1;
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556
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557 handle_error:
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558 /* filename not XDECREF'ed here as there is no way to jump here with a
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559 dangling reference. */
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560 Py_XDECREF(*registry);
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561 Py_XDECREF(*module);
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562 return 0;
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563 }
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564
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565 static PyObject *
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566 get_category(PyObject *message, PyObject *category)
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567 {
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568 int rc;
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569
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diff changeset
570 /* Get category. */
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571 rc = PyObject_IsInstance(message, PyExc_Warning);
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572 if (rc == -1)
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573 return NULL;
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574
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575 if (rc == 1)
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576 category = (PyObject*)message->ob_type;
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577 else if (category == NULL)
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578 category = PyExc_UserWarning;
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579
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580 /* Validate category. */
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581 rc = PyObject_IsSubclass(category, PyExc_Warning);
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582 if (rc == -1)
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583 return NULL;
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584 if (rc == 0) {
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585 PyErr_SetString(PyExc_ValueError,
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586 "category is not a subclass of Warning");
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587 return NULL;
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588 }
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589
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590 return category;
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591 }
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592
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593 static PyObject *
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594 do_warn(PyObject *message, PyObject *category, Py_ssize_t stack_level)
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595 {
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596 PyObject *filename, *module, *registry, *res;
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597 int lineno;
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598
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599 if (!setup_context(stack_level, &filename, &lineno, &module, &registry))
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600 return NULL;
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601
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602 res = warn_explicit(category, message, filename, lineno, module, registry,
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603 NULL);
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604 Py_DECREF(filename);
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605 Py_DECREF(registry);
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606 Py_DECREF(module);
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607 return res;
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608 }
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609
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diff changeset
610 static PyObject *
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611 warnings_warn(PyObject *self, PyObject *args, PyObject *kwds)
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612 {
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613 static char *kw_list[] = { "message", "category", "stacklevel", 0 };
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614 PyObject *message, *category = NULL;
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615 Py_ssize_t stack_level = 1;
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616
61467
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617 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|On:warn", kw_list,
46430
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diff changeset
618 &message, &category, &stack_level))
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diff changeset
619 return NULL;
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diff changeset
620
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diff changeset
621 category = get_category(message, category);
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622 if (category == NULL)
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diff changeset
623 return NULL;
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624 return do_warn(message, category, stack_level);
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625 }
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626
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diff changeset
627 static PyObject *
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628 warnings_warn_explicit(PyObject *self, PyObject *args, PyObject *kwds)
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diff changeset
629 {
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diff changeset
630 static char *kwd_list[] = {"message", "category", "filename", "lineno",
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diff changeset
631 "module", "registry", "module_globals", 0};
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diff changeset
632 PyObject *message;
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633 PyObject *category;
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634 PyObject *filename;
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diff changeset
635 int lineno;
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diff changeset
636 PyObject *module = NULL;
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diff changeset
637 PyObject *registry = NULL;
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638 PyObject *module_globals = NULL;
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diff changeset
639
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diff changeset
640 if (!PyArg_ParseTupleAndKeywords(args, kwds, "OOOi|OOO:warn_explicit",
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641 kwd_list, &message, &category, &filename, &lineno, &module,
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642 &registry, &module_globals))
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643 return NULL;
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644
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diff changeset
645 if (module_globals) {
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646 static PyObject *get_source_name = NULL;
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647 static PyObject *splitlines_name = NULL;
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648 PyObject *loader;
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649 PyObject *module_name;
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650 PyObject *source;
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651 PyObject *source_list;
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652 PyObject *source_line;
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diff changeset
653 PyObject *returned;
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654
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diff changeset
655 if (get_source_name == NULL) {
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656 get_source_name = PyUnicode_InternFromString("get_source");
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657 if (!get_source_name)
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658 return NULL;
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659 }
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660 if (splitlines_name == NULL) {
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661 splitlines_name = PyUnicode_InternFromString("splitlines");
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662 if (!splitlines_name)
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663 return NULL;
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664 }
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665
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666 /* Check/get the requisite pieces needed for the loader. */
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667 loader = PyDict_GetItemString(module_globals, "__loader__");
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668 module_name = PyDict_GetItemString(module_globals, "__name__");
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diff changeset
669
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670 if (loader == NULL || module_name == NULL)
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diff changeset
671 goto standard_call;
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diff changeset
672
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673 /* Make sure the loader implements the optional get_source() method. */
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674 if (!PyObject_HasAttrString(loader, "get_source"))
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diff changeset
675 goto standard_call;
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676 /* Call get_source() to get the source code. */
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diff changeset
677 source = PyObject_CallMethodObjArgs(loader, get_source_name,
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678 module_name, NULL);
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679 if (!source)
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680 return NULL;
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681 else if (source == Py_None) {
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682 Py_DECREF(Py_None);
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683 goto standard_call;
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684 }
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685
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686 /* Split the source into lines. */
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687 source_list = PyObject_CallMethodObjArgs(source, splitlines_name,
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688 NULL);
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689 Py_DECREF(source);
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690 if (!source_list)
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691 return NULL;
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692
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693 /* Get the source line. */
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694 source_line = PyList_GetItem(source_list, lineno-1);
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695 if (!source_line) {
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696 Py_DECREF(source_list);
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697 return NULL;
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698 }
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699
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700 /* Handle the warning. */
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701 returned = warn_explicit(category, message, filename, lineno, module,
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702 registry, source_line);
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703 Py_DECREF(source_list);
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704 return returned;
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705 }
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706
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diff changeset
707 standard_call:
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708 return warn_explicit(category, message, filename, lineno, module,
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709 registry, NULL);
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710 }
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711
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712
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713 /* Function to issue a warning message; may raise an exception. */
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714
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Victor Stinner <victor.stinner@haypocalc.com>
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715 static int
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716 warn_unicode(PyObject *category, PyObject *message,
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parents: 63851
diff changeset
717 Py_ssize_t stack_level)
46430
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718 {
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719 PyObject *res;
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720
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diff changeset
721 if (category == NULL)
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722 category = PyExc_RuntimeWarning;
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723
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724 res = do_warn(message, category, stack_level);
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725 if (res == NULL)
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726 return -1;
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727 Py_DECREF(res);
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728
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729 return 0;
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730 }
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731
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732 int
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733 PyErr_WarnFormat(PyObject *category, Py_ssize_t stack_level,
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734 const char *format, ...)
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735 {
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736 int ret;
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737 PyObject *message;
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738 va_list vargs;
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739
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740 #ifdef HAVE_STDARG_PROTOTYPES
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741 va_start(vargs, format);
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742 #else
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743 va_start(vargs);
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744 #endif
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745 message = PyUnicode_FromFormatV(format, vargs);
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746 if (message != NULL) {
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747 ret = warn_unicode(category, message, stack_level);
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748 Py_DECREF(message);
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749 }
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750 else
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751 ret = -1;
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752 va_end(vargs);
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753 return ret;
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754 }
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755
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756 int
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757 PyErr_WarnEx(PyObject *category, const char *text, Py_ssize_t stack_level)
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758 {
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759 int ret;
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760 PyObject *message = PyUnicode_FromString(text);
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761 if (message == NULL)
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parents: 63851
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762 return -1;
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parents: 63851
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763 ret = warn_unicode(category, message, stack_level);
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parents: 63851
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764 Py_DECREF(message);
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parents: 63851
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765 return ret;
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parents: 63851
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766 }
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767
68488
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Ezio Melotti <ezio.melotti@gmail.com>
parents: 62393
diff changeset
768 /* PyErr_Warn is only for backwards compatibility and will be removed.
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diff changeset
769 Use PyErr_WarnEx instead. */
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770
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771 #undef PyErr_Warn
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772
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diff changeset
773 PyAPI_FUNC(int)
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diff changeset
774 PyErr_Warn(PyObject *category, char *text)
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775 {
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776 return PyErr_WarnEx(category, text, 1);
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777 }
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778
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parents:
diff changeset
779 /* Warning with explicit origin */
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diff changeset
780 int
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781 PyErr_WarnExplicit(PyObject *category, const char *text,
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diff changeset
782 const char *filename_str, int lineno,
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783 const char *module_str, PyObject *registry)
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diff changeset
784 {
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
785 PyObject *res;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
786 PyObject *message = PyUnicode_FromString(text);
67161
6f19622dd342 Issue #10779: PyErr_WarnExplicit() decodes the filename from the filesystem
Victor Stinner <victor.stinner@haypocalc.com>
parents: 65624
diff changeset
787 PyObject *filename = PyUnicode_DecodeFSDefault(filename_str);
46430
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
788 PyObject *module = NULL;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
789 int ret = -1;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
790
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
791 if (message == NULL || filename == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
792 goto exit;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
793 if (module_str != NULL) {
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
794 module = PyUnicode_FromString(module_str);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
795 if (module == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
796 goto exit;
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parents:
diff changeset
797 }
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
798
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
799 if (category == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
800 category = PyExc_RuntimeWarning;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
801 res = warn_explicit(category, message, filename, lineno, module, registry,
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
802 NULL);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
803 if (res == NULL)
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
804 goto exit;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
805 Py_DECREF(res);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
806 ret = 0;
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parents:
diff changeset
807
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
808 exit:
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
809 Py_XDECREF(message);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
810 Py_XDECREF(module);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
811 Py_XDECREF(filename);
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
812 return ret;
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
813 }
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parents:
diff changeset
814
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
815
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
816 PyDoc_STRVAR(warn_doc,
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
817 "Issue a warning, or maybe ignore it or raise an exception.");
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parents:
diff changeset
818
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
819 PyDoc_STRVAR(warn_explicit_doc,
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
820 "Low-level inferface to warnings functionality.");
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parents:
diff changeset
821
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parents:
diff changeset
822 static PyMethodDef warnings_functions[] = {
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parents:
diff changeset
823 {"warn", (PyCFunction)warnings_warn, METH_VARARGS | METH_KEYWORDS,
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
824 warn_doc},
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parents:
diff changeset
825 {"warn_explicit", (PyCFunction)warnings_warn_explicit,
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
826 METH_VARARGS | METH_KEYWORDS, warn_explicit_doc},
49387
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Christian Heimes <christian@cheimes.de>
parents: 48953
diff changeset
827 /* XXX(brett.cannon): add showwarning? */
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Christian Heimes <christian@cheimes.de>
parents: 48953
diff changeset
828 /* XXX(brett.cannon): Reasonable to add formatwarning? */
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 55293
diff changeset
829 {NULL, NULL} /* sentinel */
46430
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parents:
diff changeset
830 };
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diff changeset
831
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diff changeset
832
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
833 static PyObject *
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
834 create_filter(PyObject *category, const char *action)
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parents:
diff changeset
835 {
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diff changeset
836 static PyObject *ignore_str = NULL;
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parents:
diff changeset
837 static PyObject *error_str = NULL;
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parents:
diff changeset
838 static PyObject *default_str = NULL;
65624
39b9e9de372b Add a new warning gategory, ResourceWarning, as discussed on python-dev. It is silent by default,
Georg Brandl <georg@python.org>
parents: 64438
diff changeset
839 static PyObject *always_str = NULL;
46430
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diff changeset
840 PyObject *action_obj = NULL;
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parents:
diff changeset
841 PyObject *lineno, *result;
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diff changeset
842
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
843 if (!strcmp(action, "ignore")) {
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diff changeset
844 if (ignore_str == NULL) {
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diff changeset
845 ignore_str = PyUnicode_InternFromString("ignore");
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Christian Heimes <christian@cheimes.de>
parents:
diff changeset
846 if (ignore_str == NULL)
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diff changeset
847 return NULL;
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diff changeset
848 }
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parents:
diff changeset
849 action_obj = ignore_str;
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diff changeset
850 }
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diff changeset
851 else if (!strcmp(action, "error")) {
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diff changeset
852 if (error_str == NULL) {
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diff changeset
853 error_str = PyUnicode_InternFromString("error");
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854 if (error_str == NULL)
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855 return NULL;
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856 }
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diff changeset
857 action_obj = error_str;
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diff changeset
858 }
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859 else if (!strcmp(action, "default")) {
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860 if (default_str == NULL) {
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diff changeset
861 default_str = PyUnicode_InternFromString("default");
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diff changeset
862 if (default_str == NULL)
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diff changeset
863 return NULL;
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parents:
diff changeset
864 }
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diff changeset
865 action_obj = default_str;
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diff changeset
866 }
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867 else if (!strcmp(action, "always")) {
39b9e9de372b Add a new warning gategory, ResourceWarning, as discussed on python-dev. It is silent by default,
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parents: 64438
diff changeset
868 if (always_str == NULL) {
39b9e9de372b Add a new warning gategory, ResourceWarning, as discussed on python-dev. It is silent by default,
Georg Brandl <georg@python.org>
parents: 64438
diff changeset
869 always_str = PyUnicode_InternFromString("always");
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Georg Brandl <georg@python.org>
parents: 64438
diff changeset
870 if (always_str == NULL)
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Georg Brandl <georg@python.org>
parents: 64438
diff changeset
871 return NULL;
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Georg Brandl <georg@python.org>
parents: 64438
diff changeset
872 }
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parents: 64438
diff changeset
873 action_obj = always_str;
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parents: 64438
diff changeset
874 }
46430
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diff changeset
875 else {
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diff changeset
876 Py_FatalError("unknown action");
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diff changeset
877 }
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diff changeset
878
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diff changeset
879 /* This assumes the line number is zero for now. */
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diff changeset
880 lineno = PyLong_FromLong(0);
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diff changeset
881 if (lineno == NULL)
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diff changeset
882 return NULL;
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diff changeset
883 result = PyTuple_Pack(5, action_obj, Py_None, category, Py_None, lineno);
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diff changeset
884 Py_DECREF(lineno);
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diff changeset
885 return result;
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diff changeset
886 }
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887
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diff changeset
888 static PyObject *
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diff changeset
889 init_filters(void)
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diff changeset
890 {
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891 PyObject *filters = PyList_New(5);
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892 unsigned int pos = 0; /* Post-incremented in each use. */
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893 unsigned int x;
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894 const char *bytes_action, *resource_action;
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895
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896 if (filters == NULL)
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897 return NULL;
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898
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899 PyList_SET_ITEM(filters, pos++,
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900 create_filter(PyExc_DeprecationWarning, "ignore"));
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901 PyList_SET_ITEM(filters, pos++,
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902 create_filter(PyExc_PendingDeprecationWarning, "ignore"));
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903 PyList_SET_ITEM(filters, pos++,
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diff changeset
904 create_filter(PyExc_ImportWarning, "ignore"));
46430
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diff changeset
905 if (Py_BytesWarningFlag > 1)
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diff changeset
906 bytes_action = "error";
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diff changeset
907 else if (Py_BytesWarningFlag)
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diff changeset
908 bytes_action = "default";
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diff changeset
909 else
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diff changeset
910 bytes_action = "ignore";
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911 PyList_SET_ITEM(filters, pos++, create_filter(PyExc_BytesWarning,
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diff changeset
912 bytes_action));
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913 /* resource usage warnings are enabled by default in pydebug mode */
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Georg Brandl <georg@python.org>
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diff changeset
914 #ifdef Py_DEBUG
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915 resource_action = "always";
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diff changeset
916 #else
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Georg Brandl <georg@python.org>
parents: 64438
diff changeset
917 resource_action = "ignore";
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diff changeset
918 #endif
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919 PyList_SET_ITEM(filters, pos++, create_filter(PyExc_ResourceWarning,
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920 resource_action));
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921 for (x = 0; x < pos; x += 1) {
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922 if (PyList_GET_ITEM(filters, x) == NULL) {
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923 Py_DECREF(filters);
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924 return NULL;
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925 }
46430
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diff changeset
926 }
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diff changeset
927
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diff changeset
928 return filters;
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diff changeset
929 }
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diff changeset
930
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931 static struct PyModuleDef warningsmodule = {
61467
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932 PyModuleDef_HEAD_INIT,
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933 MODULE_NAME,
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934 warnings__doc__,
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935 0,
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936 warnings_functions,
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937 NULL,
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938 NULL,
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939 NULL,
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940 NULL
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941 };
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942
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diff changeset
943
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diff changeset
944 PyMODINIT_FUNC
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diff changeset
945 _PyWarnings_Init(void)
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diff changeset
946 {
52659
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947 PyObject *m;
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diff changeset
948
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949 m = PyModule_Create(&warningsmodule);
46430
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950 if (m == NULL)
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951 return NULL;
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952
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diff changeset
953 _filters = init_filters();
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954 if (_filters == NULL)
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955 return NULL;
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956 Py_INCREF(_filters);
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957 if (PyModule_AddObject(m, "filters", _filters) < 0)
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958 return NULL;
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959
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960 _once_registry = PyDict_New();
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961 if (_once_registry == NULL)
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962 return NULL;
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963 Py_INCREF(_once_registry);
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964 if (PyModule_AddObject(m, "_onceregistry", _once_registry) < 0)
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965 return NULL;
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966
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967 _default_action = PyUnicode_FromString("default");
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968 if (_default_action == NULL)
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969 return NULL;
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970 if (PyModule_AddObject(m, "_defaultaction", _default_action) < 0)
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971 return NULL;
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972 return m;
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973 }