Mercurial > cpython-lru_cache-weakref
annotate Python/sysmodule.c @ 15487:f0ca4c67957b legacy-trunk
_getframe(): New sys module function for getting at the stack frame.
Implements and closes SF patch #102106, with Guido's suggested
documentation changes.
| author | Barry Warsaw <barry@python.org> |
|---|---|
| date | Wed, 06 Dec 2000 21:47:46 +0000 |
| parents | 6f6f965c5e2d |
| children | 0f42f6669e80 |
| rev | line source |
|---|---|
| 145 | 1 |
| 6 | 2 /* System module */ |
| 3 | |
| 4 /* | |
| 5 Various bits of information used by the interpreter are collected in | |
| 6 module 'sys'. | |
| 86 | 7 Function member: |
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8 - exit(sts): raise SystemExit |
| 6 | 9 Data members: |
| 10 - stdin, stdout, stderr: standard file objects | |
| 86 | 11 - modules: the table of modules (dictionary) |
| 6 | 12 - path: module search path (list of strings) |
| 86 | 13 - argv: script arguments (list of strings) |
| 14 - ps1, ps2: optional primary and secondary prompts (strings) | |
| 6 | 15 */ |
| 16 | |
| 5372 | 17 #include "Python.h" |
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18 #include "compile.h" |
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19 #include "frameobject.h" |
| 86 | 20 |
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21 #include "osdefs.h" |
| 86 | 22 |
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23 #ifdef HAVE_UNISTD_H |
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24 #include <unistd.h> |
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25 #endif |
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26 |
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27 #ifdef MS_COREDLL |
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28 extern void *PyWin_DLLhModule; |
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29 /* A string loaded from the DLL at startup: */ |
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30 extern const char *PyWin_DLLVersionString; |
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31 #endif |
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32 |
| 5372 | 33 PyObject * |
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34 PySys_GetObject(char *name) |
| 6 | 35 { |
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36 PyThreadState *tstate = PyThreadState_Get(); |
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37 PyObject *sd = tstate->interp->sysdict; |
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38 if (sd == NULL) |
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39 return NULL; |
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40 return PyDict_GetItemString(sd, name); |
| 6 | 41 } |
| 42 | |
| 43 FILE * | |
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44 PySys_GetFile(char *name, FILE *def) |
| 6 | 45 { |
| 46 FILE *fp = NULL; | |
| 5372 | 47 PyObject *v = PySys_GetObject(name); |
| 48 if (v != NULL && PyFile_Check(v)) | |
| 49 fp = PyFile_AsFile(v); | |
| 6 | 50 if (fp == NULL) |
| 51 fp = def; | |
| 52 return fp; | |
| 53 } | |
| 54 | |
| 55 int | |
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56 PySys_SetObject(char *name, PyObject *v) |
| 6 | 57 { |
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58 PyThreadState *tstate = PyThreadState_Get(); |
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59 PyObject *sd = tstate->interp->sysdict; |
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60 if (v == NULL) { |
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61 if (PyDict_GetItemString(sd, name) == NULL) |
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62 return 0; |
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63 else |
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64 return PyDict_DelItemString(sd, name); |
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65 } |
| 6 | 66 else |
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67 return PyDict_SetItemString(sd, name, v); |
| 6 | 68 } |
| 69 | |
| 5372 | 70 static PyObject * |
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71 sys_exc_info(PyObject *self, PyObject *args) |
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72 { |
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73 PyThreadState *tstate; |
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74 if (!PyArg_ParseTuple(args, ":exc_info")) |
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75 return NULL; |
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76 tstate = PyThreadState_Get(); |
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77 return Py_BuildValue( |
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78 "(OOO)", |
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79 tstate->exc_type != NULL ? tstate->exc_type : Py_None, |
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80 tstate->exc_value != NULL ? tstate->exc_value : Py_None, |
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81 tstate->exc_traceback != NULL ? |
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82 tstate->exc_traceback : Py_None); |
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83 } |
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84 |
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85 static char exc_info_doc[] = |
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86 "exc_info() -> (type, value, traceback)\n\ |
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87 \n\ |
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88 Return information about the exception that is currently being handled.\n\ |
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89 This should be called from inside an except clause only."; |
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90 |
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91 static PyObject * |
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92 sys_exit(PyObject *self, PyObject *args) |
| 6 | 93 { |
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94 /* Raise SystemExit so callers may catch it or clean up. */ |
| 5372 | 95 PyErr_SetObject(PyExc_SystemExit, args); |
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96 return NULL; |
| 6 | 97 } |
| 98 | |
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99 static char exit_doc[] = |
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100 "exit([status])\n\ |
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101 \n\ |
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102 Exit the interpreter by raising SystemExit(status).\n\ |
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103 If the status is omitted or None, it defaults to zero (i.e., success).\n\ |
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104 If the status numeric, it will be used as the system exit status.\n\ |
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105 If it is another kind of object, it will be printed and the system\n\ |
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106 exit status will be one (i.e., failure)."; |
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107 |
| 5372 | 108 static PyObject * |
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109 sys_getdefaultencoding(PyObject *self, PyObject *args) |
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110 { |
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111 if (!PyArg_ParseTuple(args, ":getdefaultencoding")) |
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112 return NULL; |
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113 return PyString_FromString(PyUnicode_GetDefaultEncoding()); |
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114 } |
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115 |
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116 static char getdefaultencoding_doc[] = |
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117 "getdefaultencoding() -> string\n\ |
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118 \n\ |
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119 Return the current default string encoding used by the Unicode \n\ |
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120 implementation."; |
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121 |
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122 static PyObject * |
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123 sys_setdefaultencoding(PyObject *self, PyObject *args) |
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124 { |
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125 char *encoding; |
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126 if (!PyArg_ParseTuple(args, "s:setdefaultencoding", &encoding)) |
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127 return NULL; |
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128 if (PyUnicode_SetDefaultEncoding(encoding)) |
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129 return NULL; |
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130 Py_INCREF(Py_None); |
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131 return Py_None; |
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132 } |
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133 |
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134 static char setdefaultencoding_doc[] = |
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135 "setdefaultencoding(encoding)\n\ |
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136 \n\ |
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137 Set the current default string encoding used by the Unicode implementation."; |
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138 |
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139 static PyObject * |
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140 sys_settrace(PyObject *self, PyObject *args) |
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141 { |
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142 PyThreadState *tstate = PyThreadState_Get(); |
| 5372 | 143 if (args == Py_None) |
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144 args = NULL; |
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145 else |
| 5372 | 146 Py_XINCREF(args); |
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147 Py_XDECREF(tstate->sys_tracefunc); |
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148 tstate->sys_tracefunc = args; |
| 5372 | 149 Py_INCREF(Py_None); |
| 150 return Py_None; | |
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151 } |
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152 |
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153 static char settrace_doc[] = |
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154 "settrace(function)\n\ |
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155 \n\ |
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156 Set the global debug tracing function. It will be called on each\n\ |
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157 function call. See the debugger chapter in the library manual."; |
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158 |
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160 sys_setprofile(PyObject *self, PyObject *args) |
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161 { |
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162 PyThreadState *tstate = PyThreadState_Get(); |
| 5372 | 163 if (args == Py_None) |
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164 args = NULL; |
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165 else |
| 5372 | 166 Py_XINCREF(args); |
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167 Py_XDECREF(tstate->sys_profilefunc); |
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168 tstate->sys_profilefunc = args; |
| 5372 | 169 Py_INCREF(Py_None); |
| 170 return Py_None; | |
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171 } |
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172 |
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173 static char setprofile_doc[] = |
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174 "setprofile(function)\n\ |
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175 \n\ |
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176 Set the profiling function. It will be called on each function call\n\ |
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177 and return. See the profiler chapter in the library manual."; |
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178 |
| 5372 | 179 static PyObject * |
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180 sys_setcheckinterval(PyObject *self, PyObject *args) |
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181 { |
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182 PyThreadState *tstate = PyThreadState_Get(); |
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183 if (!PyArg_ParseTuple(args, "i:setcheckinterval", &tstate->interp->checkinterval)) |
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184 return NULL; |
| 5372 | 185 Py_INCREF(Py_None); |
| 186 return Py_None; | |
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187 } |
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188 |
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189 static char setcheckinterval_doc[] = |
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190 "setcheckinterval(n)\n\ |
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191 \n\ |
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192 Tell the Python interpreter to check for asynchronous events every\n\ |
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193 n instructions. This also affects how often thread switches occur."; |
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194 |
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195 static PyObject * |
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196 sys_setrecursionlimit(PyObject *self, PyObject *args) |
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197 { |
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198 int new_limit; |
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199 if (!PyArg_ParseTuple(args, "i:setrecursionlimit", &new_limit)) |
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200 return NULL; |
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201 if (new_limit <= 0) { |
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202 PyErr_SetString(PyExc_ValueError, |
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203 "recursion limit must be positive"); |
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204 return NULL; |
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205 } |
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206 Py_SetRecursionLimit(new_limit); |
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207 Py_INCREF(Py_None); |
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208 return Py_None; |
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209 } |
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210 |
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211 static char setrecursionlimit_doc[] = |
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212 "setrecursionlimit(n)\n\ |
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213 \n\ |
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214 Set the maximum depth of the Python interpreter stack to n. This\n\ |
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215 limit prevents infinite recursion from causing an overflow of the C\n\ |
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216 stack and crashing Python. The highest possible limit is platform-\n\ |
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217 dependent."; |
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218 |
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219 static PyObject * |
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220 sys_getrecursionlimit(PyObject *self, PyObject *args) |
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221 { |
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222 if (!PyArg_ParseTuple(args, ":getrecursionlimit")) |
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223 return NULL; |
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224 return PyInt_FromLong(Py_GetRecursionLimit()); |
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225 } |
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226 |
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227 static char getrecursionlimit_doc[] = |
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228 "getrecursionlimit()\n\ |
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229 \n\ |
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230 Return the current value of the recursion limit, the maximum depth\n\ |
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231 of the Python interpreter stack. This limit prevents infinite\n\ |
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232 recursion from causing an overflow of the C stack and crashing Python."; |
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233 |
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234 #ifdef USE_MALLOPT |
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235 /* Link with -lmalloc (or -lmpc) on an SGI */ |
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236 #include <malloc.h> |
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237 |
| 5372 | 238 static PyObject * |
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239 sys_mdebug(PyObject *self, PyObject *args) |
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240 { |
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241 int flag; |
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242 if (!PyArg_ParseTuple(args, "i:mdebug", &flag)) |
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243 return NULL; |
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244 mallopt(M_DEBUG, flag); |
| 5372 | 245 Py_INCREF(Py_None); |
| 246 return Py_None; | |
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247 } |
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248 #endif /* USE_MALLOPT */ |
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249 |
| 5372 | 250 static PyObject * |
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251 sys_getrefcount(PyObject *self, PyObject *args) |
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252 { |
| 5372 | 253 PyObject *arg; |
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254 if (!PyArg_ParseTuple(args, "O:getrefcount", &arg)) |
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255 return NULL; |
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256 return PyInt_FromLong(arg->ob_refcnt); |
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257 } |
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258 |
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259 #ifdef Py_TRACE_REFS |
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260 static PyObject * |
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261 sys_gettotalrefcount(PyObject *self, PyObject *args) |
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262 { |
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263 extern long _Py_RefTotal; |
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264 if (!PyArg_ParseTuple(args, ":gettotalrefcount")) |
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265 return NULL; |
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266 return PyInt_FromLong(_Py_RefTotal); |
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267 } |
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268 |
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269 #endif /* Py_TRACE_REFS */ |
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270 |
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271 static char getrefcount_doc[] = |
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272 "getrefcount(object) -> integer\n\ |
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273 \n\ |
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274 Return the current reference count for the object. This includes the\n\ |
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275 temporary reference in the argument list, so it is at least 2."; |
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276 |
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277 #ifdef COUNT_ALLOCS |
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278 static PyObject * |
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279 sys_getcounts(PyObject *self, PyObject *args) |
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280 { |
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281 extern PyObject *get_counts(void); |
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282 |
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283 if (!PyArg_ParseTuple(args, ":getcounts")) |
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284 return NULL; |
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285 return get_counts(); |
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286 } |
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287 #endif |
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288 |
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289 static char getframe_doc[] = |
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290 "_getframe([depth]) -> frameobject\n\ |
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291 \n\ |
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292 Return a frame object from the call stack. If optional integer depth is\n\ |
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293 given, return the frame object that many calls below the top of the stack.\n\ |
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294 If that is deeper than the call stack, ValueError is raised. The default\n\ |
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295 for depth is zero, returning the frame at the top of the call stack.\n\ |
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296 \n\ |
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297 This function should be used for internal and specialized\n\ |
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298 purposes only."; |
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299 |
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300 static PyObject * |
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301 sys_getframe(PyObject *self, PyObject *args) |
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302 { |
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303 PyFrameObject *f = PyThreadState_Get()->frame; |
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304 int depth = -1; |
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305 |
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306 if (!PyArg_ParseTuple(args, "|i:_getframe", &depth)) |
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307 return NULL; |
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308 |
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309 while (depth > 0 && f != NULL) { |
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310 f = f->f_back; |
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311 --depth; |
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312 } |
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313 if (f == NULL) { |
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314 PyErr_SetString(PyExc_ValueError, |
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315 "call stack is not deep enough"); |
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316 return NULL; |
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317 } |
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318 Py_INCREF(f); |
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319 return (PyObject*)f; |
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320 } |
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321 |
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322 |
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323 #ifdef Py_TRACE_REFS |
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324 /* Defined in objects.c because it uses static globals if that file */ |
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325 extern PyObject *_Py_GetObjects(PyObject *, PyObject *); |
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326 #endif |
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327 |
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328 #ifdef DYNAMIC_EXECUTION_PROFILE |
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329 /* Defined in ceval.c because it uses static globals if that file */ |
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330 extern PyObject *_Py_GetDXProfile(PyObject *, PyObject *); |
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331 #endif |
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332 |
| 5372 | 333 static PyMethodDef sys_methods[] = { |
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334 /* Might as well keep this in alphabetic order */ |
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335 {"exc_info", sys_exc_info, 1, exc_info_doc}, |
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336 {"exit", sys_exit, 0, exit_doc}, |
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337 {"getdefaultencoding", sys_getdefaultencoding, 1, |
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338 getdefaultencoding_doc}, |
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339 #ifdef COUNT_ALLOCS |
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340 {"getcounts", sys_getcounts, 1}, |
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341 #endif |
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342 #ifdef DYNAMIC_EXECUTION_PROFILE |
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343 {"getdxp", _Py_GetDXProfile, 1}, |
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344 #endif |
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345 #ifdef Py_TRACE_REFS |
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346 {"getobjects", _Py_GetObjects, 1}, |
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347 {"gettotalrefcount", sys_gettotalrefcount, 1}, |
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348 #endif |
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349 {"getrefcount", sys_getrefcount, 1, getrefcount_doc}, |
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350 {"getrecursionlimit", sys_getrecursionlimit, 1, |
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351 getrecursionlimit_doc}, |
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352 {"_getframe", sys_getframe, 1, getframe_doc}, |
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353 #ifdef USE_MALLOPT |
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354 {"mdebug", sys_mdebug, 1}, |
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355 #endif |
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356 {"setdefaultencoding", sys_setdefaultencoding, 1, |
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357 setdefaultencoding_doc}, |
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358 {"setcheckinterval", sys_setcheckinterval, 1, |
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359 setcheckinterval_doc}, |
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360 {"setprofile", sys_setprofile, 0, setprofile_doc}, |
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361 {"setrecursionlimit", sys_setrecursionlimit, 1, |
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362 setrecursionlimit_doc}, |
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363 {"settrace", sys_settrace, 0, settrace_doc}, |
| 86 | 364 {NULL, NULL} /* sentinel */ |
| 365 }; | |
| 366 | |
| 5372 | 367 static PyObject * |
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368 list_builtin_module_names(void) |
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369 { |
| 5372 | 370 PyObject *list = PyList_New(0); |
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371 int i; |
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372 if (list == NULL) |
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373 return NULL; |
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374 for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
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375 PyObject *name = PyString_FromString( |
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376 PyImport_Inittab[i].name); |
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377 if (name == NULL) |
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378 break; |
| 5372 | 379 PyList_Append(list, name); |
| 380 Py_DECREF(name); | |
|
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381 } |
| 5372 | 382 if (PyList_Sort(list) != 0) { |
| 383 Py_DECREF(list); | |
|
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384 list = NULL; |
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385 } |
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386 if (list) { |
| 5372 | 387 PyObject *v = PyList_AsTuple(list); |
| 388 Py_DECREF(list); | |
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389 list = v; |
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390 } |
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391 return list; |
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392 } |
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393 |
|
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394 /* XXX This doc string is too long to be a single string literal in VC++ 5.0. |
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395 Two literals concatenated works just fine. If you have a K&R compiler |
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396 or other abomination that however *does* understand longer strings, |
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397 get rid of the !!! comment in the middle and the quotes that surround it. */ |
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398 static char sys_doc[] = |
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399 "This module provides access to some objects used or maintained by the\n\ |
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400 interpreter and to functions that interact strongly with the interpreter.\n\ |
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401 \n\ |
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402 Dynamic objects:\n\ |
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403 \n\ |
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404 argv -- command line arguments; argv[0] is the script pathname if known\n\ |
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405 path -- module search path; path[0] is the script directory, else ''\n\ |
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406 modules -- dictionary of loaded modules\n\ |
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407 exitfunc -- you may set this to a function to be called when Python exits\n\ |
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408 \n\ |
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409 stdin -- standard input file object; used by raw_input() and input()\n\ |
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410 stdout -- standard output file object; used by the print statement\n\ |
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411 stderr -- standard error object; used for error messages\n\ |
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412 By assigning another file object (or an object that behaves like a file)\n\ |
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413 to one of these, it is possible to redirect all of the interpreter's I/O.\n\ |
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414 \n\ |
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415 last_type -- type of last uncaught exception\n\ |
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416 last_value -- value of last uncaught exception\n\ |
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417 last_traceback -- traceback of last uncaught exception\n\ |
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418 These three are only available in an interactive session after a\n\ |
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419 traceback has been printed.\n\ |
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420 \n\ |
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421 exc_type -- type of exception currently being handled\n\ |
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422 exc_value -- value of exception currently being handled\n\ |
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423 exc_traceback -- traceback of exception currently being handled\n\ |
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424 The function exc_info() should be used instead of these three,\n\ |
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425 because it is thread-safe.\n\ |
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426 " |
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427 #ifndef MS_WIN16 |
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428 /* Concatenating string here */ |
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429 "\n\ |
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430 Static objects:\n\ |
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431 \n\ |
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432 maxint -- the largest supported integer (the smallest is -maxint-1)\n\ |
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433 builtin_module_names -- tuple of module names built into this intepreter\n\ |
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434 version -- the version of this interpreter as a string\n\ |
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435 version_info -- version information as a tuple\n\ |
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436 hexversion -- version information encoded as a single integer\n\ |
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437 copyright -- copyright notice pertaining to this interpreter\n\ |
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438 platform -- platform identifier\n\ |
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439 executable -- pathname of this Python interpreter\n\ |
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440 prefix -- prefix used to find the Python library\n\ |
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441 exec_prefix -- prefix used to find the machine-specific Python library\n\ |
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442 dllhandle -- [Windows only] integer handle of the Python DLL\n\ |
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443 winver -- [Windows only] version number of the Python DLL\n\ |
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444 __stdin__ -- the original stdin; don't use!\n\ |
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445 __stdout__ -- the original stdout; don't use!\n\ |
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446 __stderr__ -- the original stderr; don't use!\n\ |
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447 \n\ |
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448 Functions:\n\ |
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449 \n\ |
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450 exc_info() -- return thread-safe information about the current exception\n\ |
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451 exit() -- exit the interpreter by raising SystemExit\n\ |
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452 getrefcount() -- return the reference count for an object (plus one :-)\n\ |
|
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453 getrecursionlimit() -- return the max recursion depth for the interpreter\n\ |
|
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454 setcheckinterval() -- control how often the interpreter checks for events\n\ |
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455 setprofile() -- set the global profiling function\n\ |
|
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456 setrecursionlimit() -- set the max recursion depth for the interpreter\n\ |
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457 settrace() -- set the global debug tracing function\n\ |
|
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458 " |
|
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459 #endif |
|
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460 /* end of sys_doc */ ; |
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461 |
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462 PyObject * |
|
13658
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Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
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|
463 _PySys_Init(void) |
| 6 | 464 { |
|
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465 PyObject *m, *v, *sysdict; |
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466 PyObject *sysin, *sysout, *syserr; |
|
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467 char *s; |
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468 |
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469 m = Py_InitModule3("sys", sys_methods, sys_doc); |
| 5372 | 470 sysdict = PyModule_GetDict(m); |
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471 |
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472 sysin = PyFile_FromFile(stdin, "<stdin>", "r", NULL); |
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473 sysout = PyFile_FromFile(stdout, "<stdout>", "w", NULL); |
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474 syserr = PyFile_FromFile(stderr, "<stderr>", "w", NULL); |
| 5372 | 475 if (PyErr_Occurred()) |
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476 return NULL; |
| 5372 | 477 PyDict_SetItemString(sysdict, "stdin", sysin); |
| 478 PyDict_SetItemString(sysdict, "stdout", sysout); | |
| 479 PyDict_SetItemString(sysdict, "stderr", syserr); | |
|
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c7454ca7d3ac
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480 /* Make backup copies for cleanup */ |
|
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481 PyDict_SetItemString(sysdict, "__stdin__", sysin); |
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482 PyDict_SetItemString(sysdict, "__stdout__", sysout); |
|
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483 PyDict_SetItemString(sysdict, "__stderr__", syserr); |
|
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484 Py_XDECREF(sysin); |
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485 Py_XDECREF(sysout); |
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|
486 Py_XDECREF(syserr); |
| 5372 | 487 PyDict_SetItemString(sysdict, "version", |
| 488 v = PyString_FromString(Py_GetVersion())); | |
|
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_PySys_Init(): Nailed small memory leak. The stringobject created for
Barry Warsaw <barry@python.org>
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|
489 Py_XDECREF(v); |
|
9746
9342c60eaac0
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changeset
|
490 PyDict_SetItemString(sysdict, "hexversion", |
|
9342c60eaac0
Add sys.hexversion, which is an integer encoding the version in hexadecimal.
Guido van Rossum <guido@python.org>
parents:
9328
diff
changeset
|
491 v = PyInt_FromLong(PY_VERSION_HEX)); |
| 5372 | 492 Py_XDECREF(v); |
|
12396
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
493 /* |
|
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
494 * These release level checks are mutually exclusive and cover |
|
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
495 * the field, so don't get too fancy with the pre-processor! |
|
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
496 */ |
|
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
497 #if PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_ALPHA |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
498 s = "alpha"; |
|
14295
e5253b692e9f
_PySys_Init(): When setting up sys.version_info, use #if/#elif.../#endif
Fred Drake <fdrake@acm.org>
parents:
14017
diff
changeset
|
499 #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_BETA |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
500 s = "beta"; |
|
14295
e5253b692e9f
_PySys_Init(): When setting up sys.version_info, use #if/#elif.../#endif
Fred Drake <fdrake@acm.org>
parents:
14017
diff
changeset
|
501 #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_GAMMA |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
502 s = "candidate"; |
|
14295
e5253b692e9f
_PySys_Init(): When setting up sys.version_info, use #if/#elif.../#endif
Fred Drake <fdrake@acm.org>
parents:
14017
diff
changeset
|
503 #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_FINAL |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
504 s = "final"; |
|
12396
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
505 #endif |
|
12394
60dd95c75999
Define version_info to be a tuple (major, minor, micro, level); level
Fred Drake <fdrake@acm.org>
parents:
12136
diff
changeset
|
506 PyDict_SetItemString(sysdict, "version_info", |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
507 v = Py_BuildValue("iiisi", PY_MAJOR_VERSION, |
|
12394
60dd95c75999
Define version_info to be a tuple (major, minor, micro, level); level
Fred Drake <fdrake@acm.org>
parents:
12136
diff
changeset
|
508 PY_MINOR_VERSION, |
|
12398
2392d10e21f1
Simplify creation of the version_info value for clarity, per
Fred Drake <fdrake@acm.org>
parents:
12396
diff
changeset
|
509 PY_MICRO_VERSION, s, |
|
12396
f82b2577fa0c
Capitulate, changing version_info to a 5-tuple:
Fred Drake <fdrake@acm.org>
parents:
12394
diff
changeset
|
510 PY_RELEASE_SERIAL)); |
|
12394
60dd95c75999
Define version_info to be a tuple (major, minor, micro, level); level
Fred Drake <fdrake@acm.org>
parents:
12136
diff
changeset
|
511 Py_XDECREF(v); |
| 5372 | 512 PyDict_SetItemString(sysdict, "copyright", |
| 513 v = PyString_FromString(Py_GetCopyright())); | |
| 514 Py_XDECREF(v); | |
| 515 PyDict_SetItemString(sysdict, "platform", | |
| 516 v = PyString_FromString(Py_GetPlatform())); | |
| 517 Py_XDECREF(v); | |
|
5598
1f206c91daee
Set sys.executable to full path of python (from argv[0]).
Guido van Rossum <guido@python.org>
parents:
5550
diff
changeset
|
518 PyDict_SetItemString(sysdict, "executable", |
|
1f206c91daee
Set sys.executable to full path of python (from argv[0]).
Guido van Rossum <guido@python.org>
parents:
5550
diff
changeset
|
519 v = PyString_FromString(Py_GetProgramFullPath())); |
|
1f206c91daee
Set sys.executable to full path of python (from argv[0]).
Guido van Rossum <guido@python.org>
parents:
5550
diff
changeset
|
520 Py_XDECREF(v); |
| 5372 | 521 PyDict_SetItemString(sysdict, "prefix", |
| 522 v = PyString_FromString(Py_GetPrefix())); | |
| 523 Py_XDECREF(v); | |
| 524 PyDict_SetItemString(sysdict, "exec_prefix", | |
| 525 v = PyString_FromString(Py_GetExecPrefix())); | |
| 526 Py_XDECREF(v); | |
| 527 PyDict_SetItemString(sysdict, "maxint", | |
| 528 v = PyInt_FromLong(PyInt_GetMax())); | |
| 529 Py_XDECREF(v); | |
| 530 PyDict_SetItemString(sysdict, "builtin_module_names", | |
|
2052
d7e91437f0a2
Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents:
1848
diff
changeset
|
531 v = list_builtin_module_names()); |
| 5372 | 532 Py_XDECREF(v); |
|
13968
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
533 { |
|
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
534 /* Assumes that longs are at least 2 bytes long. |
|
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
535 Should be safe! */ |
|
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
536 unsigned long number = 1; |
|
13977
eb9a36163a9e
Guido pointed out that all names in the sys module have no underscore,
Fred Drake <fdrake@acm.org>
parents:
13971
diff
changeset
|
537 char *value; |
|
13968
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
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13694
diff
changeset
|
538 |
|
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
539 s = (char *) &number; |
|
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
13694
diff
changeset
|
540 if (s[0] == 0) |
|
13977
eb9a36163a9e
Guido pointed out that all names in the sys module have no underscore,
Fred Drake <fdrake@acm.org>
parents:
13971
diff
changeset
|
541 value = "big"; |
|
13968
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
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diff
changeset
|
542 else |
|
13977
eb9a36163a9e
Guido pointed out that all names in the sys module have no underscore,
Fred Drake <fdrake@acm.org>
parents:
13971
diff
changeset
|
543 value = "little"; |
|
eb9a36163a9e
Guido pointed out that all names in the sys module have no underscore,
Fred Drake <fdrake@acm.org>
parents:
13971
diff
changeset
|
544 PyDict_SetItemString(sysdict, "byteorder", |
|
14017
128f641191c3
_PySys_Init(): Fix another Insure discovered memory leak; the PyString
Barry Warsaw <barry@python.org>
parents:
13977
diff
changeset
|
545 v = PyString_FromString(value)); |
|
128f641191c3
_PySys_Init(): Fix another Insure discovered memory leak; the PyString
Barry Warsaw <barry@python.org>
parents:
13977
diff
changeset
|
546 Py_XDECREF(v); |
|
13968
841cf9012ac3
Add a byte_order value to the sys module. The value is "big" for
Fred Drake <fdrake@acm.org>
parents:
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diff
changeset
|
547 } |
|
4126
c80c515999b9
Use MS_DLL_ID as sys.winver
Guido van Rossum <guido@python.org>
parents:
3877
diff
changeset
|
548 #ifdef MS_COREDLL |
| 5372 | 549 PyDict_SetItemString(sysdict, "dllhandle", |
|
13096
8c8de5b736dc
Trent Mick's Win64 changes: size_t vs. int or long; also some overflow
Guido van Rossum <guido@python.org>
parents:
12965
diff
changeset
|
550 v = PyLong_FromVoidPtr(PyWin_DLLhModule)); |
| 5372 | 551 Py_XDECREF(v); |
| 552 PyDict_SetItemString(sysdict, "winver", | |
|
6352
b62a7a59414e
Get DLL version from a variable.
Guido van Rossum <guido@python.org>
parents:
5955
diff
changeset
|
553 v = PyString_FromString(PyWin_DLLVersionString)); |
| 5372 | 554 Py_XDECREF(v); |
|
3490
1dfc519ea3cb
Under NT, define sys.dllhandle and sys.winver (Mark H.).
Guido van Rossum <guido@python.org>
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3326
diff
changeset
|
555 #endif |
| 5372 | 556 if (PyErr_Occurred()) |
|
5926
8d2194e22e67
The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents:
5863
diff
changeset
|
557 return NULL; |
|
8d2194e22e67
The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents:
5863
diff
changeset
|
558 return m; |
| 86 | 559 } |
| 560 | |
| 5372 | 561 static PyObject * |
|
13658
f79434ee41fa
Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
562 makepathobject(char *path, int delim) |
| 86 | 563 { |
| 564 int i, n; | |
| 565 char *p; | |
| 5372 | 566 PyObject *v, *w; |
| 6 | 567 |
| 86 | 568 n = 1; |
| 569 p = path; | |
| 570 while ((p = strchr(p, delim)) != NULL) { | |
| 571 n++; | |
| 572 p++; | |
| 573 } | |
| 5372 | 574 v = PyList_New(n); |
| 86 | 575 if (v == NULL) |
| 576 return NULL; | |
| 577 for (i = 0; ; i++) { | |
| 578 p = strchr(path, delim); | |
| 579 if (p == NULL) | |
| 580 p = strchr(path, '\0'); /* End of string */ | |
| 5372 | 581 w = PyString_FromStringAndSize(path, (int) (p - path)); |
| 86 | 582 if (w == NULL) { |
| 5372 | 583 Py_DECREF(v); |
| 86 | 584 return NULL; |
| 585 } | |
| 5372 | 586 PyList_SetItem(v, i, w); |
| 86 | 587 if (*p == '\0') |
| 588 break; | |
| 589 path = p+1; | |
| 590 } | |
| 591 return v; | |
| 592 } | |
| 593 | |
| 594 void | |
|
13658
f79434ee41fa
Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents:
13447
diff
changeset
|
595 PySys_SetPath(char *path) |
| 86 | 596 { |
| 5372 | 597 PyObject *v; |
| 86 | 598 if ((v = makepathobject(path, DELIM)) == NULL) |
| 5372 | 599 Py_FatalError("can't create sys.path"); |
| 600 if (PySys_SetObject("path", v) != 0) | |
| 601 Py_FatalError("can't assign sys.path"); | |
| 602 Py_DECREF(v); | |
|
83
f6bcf3c1d714
Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents:
6
diff
changeset
|
603 } |
|
f6bcf3c1d714
Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents:
6
diff
changeset
|
604 |
| 5372 | 605 static PyObject * |
|
13658
f79434ee41fa
Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents:
13447
diff
changeset
|
606 makeargvobject(int argc, char **argv) |
|
83
f6bcf3c1d714
Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents:
6
diff
changeset
|
607 { |
| 5372 | 608 PyObject *av; |
|
596
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
609 if (argc <= 0 || argv == NULL) { |
|
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
610 /* Ensure at least one (empty) argument is seen */ |
|
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
611 static char *empty_argv[1] = {""}; |
|
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
612 argv = empty_argv; |
|
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
613 argc = 1; |
|
e18f1fa398a3
Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents:
549
diff
changeset
|
614 } |
| 5372 | 615 av = PyList_New(argc); |
| 86 | 616 if (av != NULL) { |
| 617 int i; | |
| 618 for (i = 0; i < argc; i++) { | |
| 5372 | 619 PyObject *v = PyString_FromString(argv[i]); |
| 86 | 620 if (v == NULL) { |
| 5372 | 621 Py_DECREF(av); |
| 86 | 622 av = NULL; |
| 623 break; | |
| 624 } | |
| 5372 | 625 PyList_SetItem(av, i, v); |
|
83
f6bcf3c1d714
Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents:
6
diff
changeset
|
626 } |
|
f6bcf3c1d714
Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents:
6
diff
changeset
|
627 } |
| 86 | 628 return av; |
| 6 | 629 } |
| 630 | |
| 631 void | |
|
13658
f79434ee41fa
Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents:
13447
diff
changeset
|
632 PySys_SetArgv(int argc, char **argv) |
| 6 | 633 { |
| 5372 | 634 PyObject *av = makeargvobject(argc, argv); |
| 635 PyObject *path = PySys_GetObject("path"); | |
| 86 | 636 if (av == NULL) |
| 5372 | 637 Py_FatalError("no mem for sys.argv"); |
| 638 if (PySys_SetObject("argv", av) != 0) | |
| 639 Py_FatalError("can't assign sys.argv"); | |
|
3877
408e374934e5
Always insert script directory in front of sys.path -- if there's no
Guido van Rossum <guido@python.org>
parents:
3806
diff
changeset
|
640 if (path != NULL) { |
|
5340
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
641 char *argv0 = argv[0]; |
|
3877
408e374934e5
Always insert script directory in front of sys.path -- if there's no
Guido van Rossum <guido@python.org>
parents:
3806
diff
changeset
|
642 char *p = NULL; |
|
4256
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
643 int n = 0; |
| 5372 | 644 PyObject *a; |
|
5340
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
645 #ifdef HAVE_READLINK |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
646 char link[MAXPATHLEN+1]; |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
647 char argv0copy[2*MAXPATHLEN+1]; |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
648 int nr = 0; |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
649 if (argc > 0 && argv0 != NULL) |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
650 nr = readlink(argv0, link, MAXPATHLEN); |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
651 if (nr > 0) { |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
652 /* It's a symlink */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
653 link[nr] = '\0'; |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
654 if (link[0] == SEP) |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
655 argv0 = link; /* Link to absolute path */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
656 else if (strchr(link, SEP) == NULL) |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
657 ; /* Link without path */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
658 else { |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
659 /* Must join(dirname(argv0), link) */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
660 char *q = strrchr(argv0, SEP); |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
661 if (q == NULL) |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
662 argv0 = link; /* argv0 without path */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
663 else { |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
664 /* Must make a copy */ |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
665 strcpy(argv0copy, argv0); |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
666 q = strrchr(argv0copy, SEP); |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
667 strcpy(q+1, link); |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
668 argv0 = argv0copy; |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
669 } |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
670 } |
|
db673e98f28d
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diff
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|
671 } |
|
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Expand one level of symbolic link in sys.argv[0] before inserting its
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|
672 #endif /* HAVE_READLINK */ |
|
4256
e225e70fd657
Changes to setpythonpath():
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|
673 #if SEP == '\\' /* Special case for MS filename syntax */ |
|
5340
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Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
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|
674 if (argc > 0 && argv0 != NULL) { |
|
4256
e225e70fd657
Changes to setpythonpath():
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|
675 char *q; |
|
5340
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Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
676 p = strrchr(argv0, SEP); |
|
4256
e225e70fd657
Changes to setpythonpath():
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diff
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|
677 /* Test for alternate separator */ |
|
5340
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Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
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|
678 q = strrchr(p ? p : argv0, '/'); |
|
4256
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
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4126
diff
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|
679 if (q != NULL) |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
680 p = q; |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
681 if (p != NULL) { |
|
5340
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
682 n = p + 1 - argv0; |
|
4256
e225e70fd657
Changes to setpythonpath():
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parents:
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diff
changeset
|
683 if (n > 1 && p[-1] != ':') |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
684 n--; /* Drop trailing separator */ |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
685 } |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
686 } |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
687 #else /* All other filename syntaxes */ |
|
5340
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
688 if (argc > 0 && argv0 != NULL) |
|
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
689 p = strrchr(argv0, SEP); |
|
4256
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
690 if (p != NULL) { |
|
5340
db673e98f28d
Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents:
5047
diff
changeset
|
691 n = p + 1 - argv0; |
|
4256
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
692 #if SEP == '/' /* Special case for Unix filename syntax */ |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
693 if (n > 1) |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
694 n--; /* Drop trailing separator */ |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
695 #endif /* Unix */ |
|
e225e70fd657
Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents:
4126
diff
changeset
|
696 } |
|
e225e70fd657
Changes to setpythonpath():
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parents:
4126
diff
changeset
|
697 #endif /* All others */ |
| 5372 | 698 a = PyString_FromStringAndSize(argv0, n); |
|
3877
408e374934e5
Always insert script directory in front of sys.path -- if there's no
Guido van Rossum <guido@python.org>
parents:
3806
diff
changeset
|
699 if (a == NULL) |
| 5372 | 700 Py_FatalError("no mem for sys.path insertion"); |
| 701 if (PyList_Insert(path, 0, a) < 0) | |
| 702 Py_FatalError("sys.path.insert(0) failed"); | |
| 703 Py_DECREF(a); | |
|
3806
93868c7a15c9
As a side effect of calling PySys_SetArgv (setpythonargv), the
Guido van Rossum <guido@python.org>
parents:
3738
diff
changeset
|
704 } |
| 5372 | 705 Py_DECREF(av); |
| 6 | 706 } |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
707 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
708 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
709 /* APIs to write to sys.stdout or sys.stderr using a printf-like interface. |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
710 Adapted from code submitted by Just van Rossum. |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
711 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
712 PySys_WriteStdout(format, ...) |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
713 PySys_WriteStderr(format, ...) |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
714 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
715 The first function writes to sys.stdout; the second to sys.stderr. When |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
716 there is a problem, they write to the real (C level) stdout or stderr; |
|
9328
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
717 no exceptions are raised. |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
718 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
719 Both take a printf-style format string as their first argument followed |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
720 by a variable length argument list determined by the format string. |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
721 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
722 *** WARNING *** |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
723 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
724 The format should limit the total size of the formatted output string to |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
725 1000 bytes. In particular, this means that no unrestricted "%s" formats |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
726 should occur; these should be limited using "%.<N>s where <N> is a |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
727 decimal number calculated so that <N> plus the maximum size of other |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
728 formatted text does not exceed 1000 bytes. Also watch out for "%f", |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
729 which can print hundreds of digits for very large numbers. |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
730 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
731 */ |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
732 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
733 static void |
|
13658
f79434ee41fa
Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents:
13447
diff
changeset
|
734 mywrite(char *name, FILE *fp, const char *format, va_list va) |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
735 { |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
736 PyObject *file; |
|
9328
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
737 PyObject *error_type, *error_value, *error_traceback; |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
738 |
|
9328
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
739 PyErr_Fetch(&error_type, &error_value, &error_traceback); |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
740 file = PySys_GetObject(name); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
741 if (file == NULL || PyFile_AsFile(file) == fp) |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
742 vfprintf(fp, format, va); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
743 else { |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
744 char buffer[1001]; |
|
9328
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
745 if (vsprintf(buffer, format, va) >= sizeof(buffer)) |
|
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
746 Py_FatalError("PySys_WriteStdout/err: buffer overrun"); |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
747 if (PyFile_WriteString(buffer, file) != 0) { |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
748 PyErr_Clear(); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
749 fputs(buffer, fp); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
750 } |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
751 } |
|
9328
81574e4646b4
Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents:
8840
diff
changeset
|
752 PyErr_Restore(error_type, error_value, error_traceback); |
|
8314
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
753 } |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
754 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
755 void |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
756 PySys_WriteStdout(const char *format, ...) |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
757 { |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
758 va_list va; |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
759 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
760 va_start(va, format); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
761 mywrite("stdout", stdout, format, va); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
762 va_end(va); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
763 } |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
764 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
765 void |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
766 PySys_WriteStderr(const char *format, ...) |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
767 { |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
768 va_list va; |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
769 |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
770 va_start(va, format); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
771 mywrite("stderr", stderr, format, va); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
772 va_end(va); |
|
f94d5ae642a9
New APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Guido van Rossum <guido@python.org>
parents:
7402
diff
changeset
|
773 } |