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annotate Python/sysmodule.c @ 12384:aa013f2cf80b legacy-trunk

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ord: provide better error messages
author Jeremy Hylton <jeremy@alum.mit.edu>
date Wed, 12 Apr 2000 21:19:47 +0000
parents 9b9abde032b3
children 60dd95c75999
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /***********************************************************
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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3 The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI or Corporation for National Research Initiatives or
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13 CNRI not be used in advertising or publicity pertaining to
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14 distribution of the software without specific, written prior
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15 permission.
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16
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17 While CWI is the initial source for this software, a modified version
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18 is made available by the Corporation for National Research Initiatives
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19 (CNRI) at the Internet address ftp://ftp.python.org.
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20
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21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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28 PERFORMANCE OF THIS SOFTWARE.
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29
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30 ******************************************************************/
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31
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32 /* System module */
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33
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34 /*
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35 Various bits of information used by the interpreter are collected in
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36 module 'sys'.
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37 Function member:
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38 - exit(sts): raise SystemExit
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39 Data members:
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40 - stdin, stdout, stderr: standard file objects
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41 - modules: the table of modules (dictionary)
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42 - path: module search path (list of strings)
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43 - argv: script arguments (list of strings)
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44 - ps1, ps2: optional primary and secondary prompts (strings)
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45 */
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46
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47 #include "Python.h"
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48
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49 #include "osdefs.h"
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50
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51 #ifdef HAVE_UNISTD_H
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52 #include <unistd.h>
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53 #endif
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54
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55 #ifdef MS_COREDLL
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56 extern void *PyWin_DLLhModule;
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57 /* A string loaded from the DLL at startup: */
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58 extern const char *PyWin_DLLVersionString;
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59 #endif
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60
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61 PyObject *
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62 PySys_GetObject(name)
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63 char *name;
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64 {
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65 PyThreadState *tstate = PyThreadState_Get();
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66 PyObject *sd = tstate->interp->sysdict;
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67 if (sd == NULL)
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68 return NULL;
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69 return PyDict_GetItemString(sd, name);
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70 }
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71
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72 FILE *
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73 PySys_GetFile(name, def)
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74 char *name;
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75 FILE *def;
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76 {
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77 FILE *fp = NULL;
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78 PyObject *v = PySys_GetObject(name);
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79 if (v != NULL && PyFile_Check(v))
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80 fp = PyFile_AsFile(v);
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81 if (fp == NULL)
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82 fp = def;
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83 return fp;
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84 }
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86 int
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87 PySys_SetObject(name, v)
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88 char *name;
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89 PyObject *v;
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90 {
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91 PyThreadState *tstate = PyThreadState_Get();
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92 PyObject *sd = tstate->interp->sysdict;
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93 if (v == NULL) {
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94 if (PyDict_GetItemString(sd, name) == NULL)
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95 return 0;
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96 else
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97 return PyDict_DelItemString(sd, name);
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98 }
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99 else
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100 return PyDict_SetItemString(sd, name, v);
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101 }
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102
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103 static PyObject *
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104 sys_exc_info(self, args)
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105 PyObject *self;
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106 PyObject *args;
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107 {
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108 PyThreadState *tstate;
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109 if (!PyArg_ParseTuple(args, ":exc_info"))
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110 return NULL;
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111 tstate = PyThreadState_Get();
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112 return Py_BuildValue(
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113 "(OOO)",
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114 tstate->exc_type != NULL ? tstate->exc_type : Py_None,
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115 tstate->exc_value != NULL ? tstate->exc_value : Py_None,
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116 tstate->exc_traceback != NULL ?
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117 tstate->exc_traceback : Py_None);
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118 }
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119
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120 static char exc_info_doc[] =
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121 "exc_info() -> (type, value, traceback)\n\
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122 \n\
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123 Return information about the exception that is currently being handled.\n\
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124 This should be called from inside an except clause only.";
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125
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126 static PyObject *
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127 sys_exit(self, args)
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128 PyObject *self;
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129 PyObject *args;
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130 {
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131 /* Raise SystemExit so callers may catch it or clean up. */
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132 PyErr_SetObject(PyExc_SystemExit, args);
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133 return NULL;
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134 }
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135
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136 static char exit_doc[] =
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137 "exit([status])\n\
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138 \n\
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139 Exit the interpreter by raising SystemExit(status).\n\
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140 If the status is omitted or None, it defaults to zero (i.e., success).\n\
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141 If the status numeric, it will be used as the system exit status.\n\
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142 If it is another kind of object, it will be printed and the system\n\
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143 exit status will be one (i.e., failure).";
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145 static PyObject *
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146 sys_settrace(self, args)
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147 PyObject *self;
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148 PyObject *args;
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149 {
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150 PyThreadState *tstate = PyThreadState_Get();
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151 if (args == Py_None)
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152 args = NULL;
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153 else
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154 Py_XINCREF(args);
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155 Py_XDECREF(tstate->sys_tracefunc);
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156 tstate->sys_tracefunc = args;
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157 Py_INCREF(Py_None);
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158 return Py_None;
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159 }
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160
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161 static char settrace_doc[] =
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162 "settrace(function)\n\
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163 \n\
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164 Set the global debug tracing function. It will be called on each\n\
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165 function call. See the debugger chapter in the library manual.";
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166
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167 static PyObject *
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168 sys_setprofile(self, args)
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169 PyObject *self;
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170 PyObject *args;
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171 {
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172 PyThreadState *tstate = PyThreadState_Get();
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173 if (args == Py_None)
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174 args = NULL;
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175 else
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176 Py_XINCREF(args);
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177 Py_XDECREF(tstate->sys_profilefunc);
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178 tstate->sys_profilefunc = args;
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179 Py_INCREF(Py_None);
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180 return Py_None;
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181 }
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182
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183 static char setprofile_doc[] =
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184 "setprofile(function)\n\
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185 \n\
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186 Set the profiling function. It will be called on each function call\n\
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187 and return. See the profiler chapter in the library manual.";
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188
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189 static PyObject *
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190 sys_setcheckinterval(self, args)
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191 PyObject *self;
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192 PyObject *args;
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193 {
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194 PyThreadState *tstate = PyThreadState_Get();
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195 if (!PyArg_ParseTuple(args, "i:setcheckinterval", &tstate->interp->checkinterval))
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196 return NULL;
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197 Py_INCREF(Py_None);
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198 return Py_None;
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199 }
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200
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201 static char setcheckinterval_doc[] =
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202 "setcheckinterval(n)\n\
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203 \n\
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204 Tell the Python interpreter to check for asynchronous events every\n\
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205 n instructions. This also affects how often thread switches occur.";
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206
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207 #ifdef USE_MALLOPT
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208 /* Link with -lmalloc (or -lmpc) on an SGI */
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209 #include <malloc.h>
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210
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211 static PyObject *
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212 sys_mdebug(self, args)
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213 PyObject *self;
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214 PyObject *args;
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215 {
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216 int flag;
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217 if (!PyArg_ParseTuple(args, "i:mdebug", &flag))
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218 return NULL;
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219 mallopt(M_DEBUG, flag);
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220 Py_INCREF(Py_None);
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221 return Py_None;
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222 }
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223 #endif /* USE_MALLOPT */
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224
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225 static PyObject *
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226 sys_getrefcount(self, args)
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227 PyObject *self;
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228 PyObject *args;
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229 {
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230 PyObject *arg;
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231 if (!PyArg_ParseTuple(args, "O:getrefcount", &arg))
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232 return NULL;
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233 return PyInt_FromLong((long) arg->ob_refcnt);
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234 }
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235
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236 static char getrefcount_doc[] =
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237 "getrefcount(object) -> integer\n\
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238 \n\
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239 Return the current reference count for the object. This includes the\n\
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240 temporary reference in the argument list, so it is at least 2.";
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241
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242 #ifdef COUNT_ALLOCS
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243 static PyObject *
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244 sys_getcounts(self, args)
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245 PyObject *self, *args;
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246 {
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247 extern PyObject *get_counts Py_PROTO((void));
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248
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249 if (!PyArg_ParseTuple(args, ":getcounts"))
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250 return NULL;
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251 return get_counts();
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252 }
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253 #endif
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254
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255 #ifdef Py_TRACE_REFS
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256 /* Defined in objects.c because it uses static globals if that file */
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257 extern PyObject *_Py_GetObjects Py_PROTO((PyObject *, PyObject *));
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258 #endif
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259
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260 #ifdef DYNAMIC_EXECUTION_PROFILE
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261 /* Defined in ceval.c because it uses static globals if that file */
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262 extern PyObject *_Py_GetDXProfile Py_PROTO((PyObject *, PyObject *));
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263 #endif
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264
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265 static PyMethodDef sys_methods[] = {
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266 /* Might as well keep this in alphabetic order */
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267 {"exc_info", sys_exc_info, 1, exc_info_doc},
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268 {"exit", sys_exit, 0, exit_doc},
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269 #ifdef COUNT_ALLOCS
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270 {"getcounts", sys_getcounts, 1},
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271 #endif
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272 #ifdef DYNAMIC_EXECUTION_PROFILE
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273 {"getdxp", _Py_GetDXProfile, 1},
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274 #endif
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275 #ifdef Py_TRACE_REFS
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276 {"getobjects", _Py_GetObjects, 1},
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277 #endif
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278 {"getrefcount", sys_getrefcount, 1, getrefcount_doc},
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279 #ifdef USE_MALLOPT
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280 {"mdebug", sys_mdebug, 1},
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281 #endif
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282 {"setcheckinterval", sys_setcheckinterval, 1, setcheckinterval_doc},
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283 {"setprofile", sys_setprofile, 0, setprofile_doc},
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284 {"settrace", sys_settrace, 0, settrace_doc},
86
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diff changeset
285 {NULL, NULL} /* sentinel */
a6934380c6e7 "Compiling" version
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286 };
a6934380c6e7 "Compiling" version
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287
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288 static PyObject *
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289 list_builtin_module_names()
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290 {
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291 PyObject *list = PyList_New(0);
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292 int i;
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293 if (list == NULL)
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294 return NULL;
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295 for (i = 0; PyImport_Inittab[i].name != NULL; i++) {
5405
b7871ca930ad Massive changes for separate thread state management.
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296 PyObject *name = PyString_FromString(
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297 PyImport_Inittab[i].name);
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298 if (name == NULL)
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299 break;
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300 PyList_Append(list, name);
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301 Py_DECREF(name);
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302 }
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303 if (PyList_Sort(list) != 0) {
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304 Py_DECREF(list);
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305 list = NULL;
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306 }
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307 if (list) {
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308 PyObject *v = PyList_AsTuple(list);
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309 Py_DECREF(list);
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310 list = v;
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311 }
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312 return list;
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313 }
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314
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44baef8ab5c8 Gack. The module doc string is too long for VC++ 5.0.
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315 /* XXX This doc string is too long to be a single string literal in VC++ 5.0.
44baef8ab5c8 Gack. The module doc string is too long for VC++ 5.0.
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316 Two literals concatenated works just fine. If you have a K&R compiler
44baef8ab5c8 Gack. The module doc string is too long for VC++ 5.0.
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317 or other abomination that however *does* understand longer strings,
44baef8ab5c8 Gack. The module doc string is too long for VC++ 5.0.
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318 get rid of the !!! comment in the middle and the quotes that surround it. */
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319 static char sys_doc[] =
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320 "This module provides access to some objects used or maintained by the\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
321 interpreter and to functions that interact strongly with the interpreter.\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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322 \n\
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diff changeset
323 Dynamic objects:\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
324 \n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
325 argv -- command line arguments; argv[0] is the script pathname if known\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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326 path -- module search path; path[0] is the script directory, else ''\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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327 modules -- dictionary of loaded modules\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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328 exitfunc -- you may set this to a function to be called when Python exits\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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329 \n\
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330 stdin -- standard input file object; used by raw_input() and input()\n\
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331 stdout -- standard output file object; used by the print statement\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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332 stderr -- standard error object; used for error messages\n\
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333 By assigning another file object (or an object that behaves like a file)\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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334 to one of these, it is possible to redirect all of the interpreter's I/O.\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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335 \n\
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336 last_type -- type of last uncaught exception\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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337 last_value -- value of last uncaught exception\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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338 last_traceback -- traceback of last uncaught exception\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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339 These three are only available in an interactive session after a\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
340 traceback has been printed.\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
341 \n\
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diff changeset
342 exc_type -- type of exception currently being handled\n\
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diff changeset
343 exc_value -- value of exception currently being handled\n\
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diff changeset
344 exc_traceback -- traceback of exception currently being handled\n\
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diff changeset
345 The function exc_info() should be used instead of these three,\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
346 because it is thread-safe.\n\
9885
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diff changeset
347 "
030ee50bd8d1 Jim Ahlstrom patch: the module doc string is too long for 16-bit VC
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diff changeset
348 #ifndef MS_WIN16
030ee50bd8d1 Jim Ahlstrom patch: the module doc string is too long for 16-bit VC
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diff changeset
349 /* Concatenating string here */
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350 "\n\
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diff changeset
351 Static objects:\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
352 \n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
353 maxint -- the largest supported integer (the smallest is -maxint-1)\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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354 builtin_module_names -- tuple of module names built into this intepreter\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
355 version -- the version of this interpreter\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
356 copyright -- copyright notice pertaining to this interpreter\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
357 platform -- platform identifier\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
358 executable -- pathname of this Python interpreter\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
359 prefix -- prefix used to find the Python library\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
360 exec_prefix -- prefix used to find the machine-specific Python library\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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diff changeset
361 dllhandle -- [Windows only] integer handle of the Python DLL\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
362 winver -- [Windows only] version number of the Python DLL\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
363 __stdin__ -- the original stdin; don't use!\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
364 __stdout__ -- the original stdout; don't use!\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
365 __stderr__ -- the original stderr; don't use!\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
366 \n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
367 Functions:\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
368 \n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
369 exc_info() -- return thread-safe information about the current exception\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
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parents: 8314
diff changeset
370 exit() -- exit the interpreter by raising SystemExit\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
371 getrefcount() -- return the reference count for an object (plus one :-)\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
372 setcheckinterval() -- control how often the interpreter checks for events\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
373 setprofile() -- set the global profiling function\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
374 settrace() -- set the global debug tracing function\n\
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
parents: 8314
diff changeset
375 ";
9885
030ee50bd8d1 Jim Ahlstrom patch: the module doc string is too long for 16-bit VC
Guido van Rossum <guido@python.org>
parents: 9746
diff changeset
376 #endif
8566
6e8b0e754a7f Added doc strings. Maybe the doc string for the module itself is a bit
Guido van Rossum <guido@python.org>
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diff changeset
377
5926
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
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diff changeset
378 PyObject *
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
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diff changeset
379 _PySys_Init()
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
380 {
5372
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diff changeset
381 extern int fclose Py_PROTO((FILE *));
5926
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diff changeset
382 PyObject *m, *v, *sysdict;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
383 PyObject *sysin, *sysout, *syserr;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
384
8566
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parents: 8314
diff changeset
385 m = Py_InitModule3("sys", sys_methods, sys_doc);
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diff changeset
386 sysdict = PyModule_GetDict(m);
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Guido van Rossum <guido@python.org>
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diff changeset
387
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
388 sysin = PyFile_FromFile(stdin, "<stdin>", "r", NULL);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
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parents: 5863
diff changeset
389 sysout = PyFile_FromFile(stdout, "<stdout>", "w", NULL);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
390 syserr = PyFile_FromFile(stderr, "<stderr>", "w", NULL);
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diff changeset
391 if (PyErr_Occurred())
5926
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parents: 5863
diff changeset
392 return NULL;
5372
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diff changeset
393 PyDict_SetItemString(sysdict, "stdin", sysin);
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Guido van Rossum <guido@python.org>
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diff changeset
394 PyDict_SetItemString(sysdict, "stdout", sysout);
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Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
395 PyDict_SetItemString(sysdict, "stderr", syserr);
7402
c7454ca7d3ac Make backup copies of stdin, stdout, stderr as __stdin__, __stdout__,
Guido van Rossum <guido@python.org>
parents: 6550
diff changeset
396 /* Make backup copies for cleanup */
c7454ca7d3ac Make backup copies of stdin, stdout, stderr as __stdin__, __stdout__,
Guido van Rossum <guido@python.org>
parents: 6550
diff changeset
397 PyDict_SetItemString(sysdict, "__stdin__", sysin);
c7454ca7d3ac Make backup copies of stdin, stdout, stderr as __stdin__, __stdout__,
Guido van Rossum <guido@python.org>
parents: 6550
diff changeset
398 PyDict_SetItemString(sysdict, "__stdout__", sysout);
c7454ca7d3ac Make backup copies of stdin, stdout, stderr as __stdin__, __stdout__,
Guido van Rossum <guido@python.org>
parents: 6550
diff changeset
399 PyDict_SetItemString(sysdict, "__stderr__", syserr);
5926
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Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
400 Py_XDECREF(sysin);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
401 Py_XDECREF(sysout);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
402 Py_XDECREF(syserr);
5372
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Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
403 PyDict_SetItemString(sysdict, "version",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
404 v = PyString_FromString(Py_GetVersion()));
9964
d44cb87e500d _PySys_Init(): Nailed small memory leak. The stringobject created for
Barry Warsaw <barry@python.org>
parents: 9885
diff changeset
405 Py_XDECREF(v);
9746
9342c60eaac0 Add sys.hexversion, which is an integer encoding the version in hexadecimal.
Guido van Rossum <guido@python.org>
parents: 9328
diff changeset
406 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
407 v = PyInt_FromLong(PY_VERSION_HEX));
5372
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Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
408 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
409 PyDict_SetItemString(sysdict, "copyright",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
410 v = PyString_FromString(Py_GetCopyright()));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
411 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
412 PyDict_SetItemString(sysdict, "platform",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
413 v = PyString_FromString(Py_GetPlatform()));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
414 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
415 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
416 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
417 Py_XDECREF(v);
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
418 PyDict_SetItemString(sysdict, "prefix",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
419 v = PyString_FromString(Py_GetPrefix()));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
420 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
421 PyDict_SetItemString(sysdict, "exec_prefix",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
422 v = PyString_FromString(Py_GetExecPrefix()));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
423 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
424 PyDict_SetItemString(sysdict, "maxint",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
425 v = PyInt_FromLong(PyInt_GetMax()));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
426 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
427 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
428 v = list_builtin_module_names());
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
429 Py_XDECREF(v);
4126
c80c515999b9 Use MS_DLL_ID as sys.winver
Guido van Rossum <guido@python.org>
parents: 3877
diff changeset
430 #ifdef MS_COREDLL
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
431 PyDict_SetItemString(sysdict, "dllhandle",
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
432 v = PyInt_FromLong((int)PyWin_DLLhModule));
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
433 Py_XDECREF(v);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
434 PyDict_SetItemString(sysdict, "winver",
6352
b62a7a59414e Get DLL version from a variable.
Guido van Rossum <guido@python.org>
parents: 5955
diff changeset
435 v = PyString_FromString(PyWin_DLLVersionString));
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
436 Py_XDECREF(v);
3490
1dfc519ea3cb Under NT, define sys.dllhandle and sys.winver (Mark H.).
Guido van Rossum <guido@python.org>
parents: 3326
diff changeset
437 #endif
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
438 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
439 return NULL;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters.
Guido van Rossum <guido@python.org>
parents: 5863
diff changeset
440 return m;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
441 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
442
5372
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Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
443 static PyObject *
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
444 makepathobject(path, delim)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
445 char *path;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
446 int delim;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
447 {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
448 int i, n;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
449 char *p;
5372
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Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
450 PyObject *v, *w;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
451
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
452 n = 1;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
453 p = path;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
454 while ((p = strchr(p, delim)) != NULL) {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
455 n++;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
456 p++;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
457 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
458 v = PyList_New(n);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
459 if (v == NULL)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
460 return NULL;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
461 for (i = 0; ; i++) {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
462 p = strchr(path, delim);
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
463 if (p == NULL)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
464 p = strchr(path, '\0'); /* End of string */
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
465 w = PyString_FromStringAndSize(path, (int) (p - path));
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
466 if (w == NULL) {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
467 Py_DECREF(v);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
468 return NULL;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
469 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
470 PyList_SetItem(v, i, w);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
471 if (*p == '\0')
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
472 break;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
473 path = p+1;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
474 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
475 return v;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
476 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
477
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
478 void
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
479 PySys_SetPath(path)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
480 char *path;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
481 {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
482 PyObject *v;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
483 if ((v = makepathobject(path, DELIM)) == NULL)
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
484 Py_FatalError("can't create sys.path");
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
485 if (PySys_SetObject("path", v) != 0)
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
486 Py_FatalError("can't assign sys.path");
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
487 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
488 }
f6bcf3c1d714 Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
489
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
490 static PyObject *
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
491 makeargvobject(argc, argv)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
492 int argc;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
493 char **argv;
83
f6bcf3c1d714 Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
494 {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
495 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
496 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
497 /* 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
498 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
499 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
500 argc = 1;
e18f1fa398a3 Ensure that sys.argv[0] always exists (maybe as empty string).
Guido van Rossum <guido@python.org>
parents: 549
diff changeset
501 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
502 av = PyList_New(argc);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
503 if (av != NULL) {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
504 int i;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
505 for (i = 0; i < argc; i++) {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
506 PyObject *v = PyString_FromString(argv[i]);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
507 if (v == NULL) {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
508 Py_DECREF(av);
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
509 av = NULL;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
510 break;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
511 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
512 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
513 }
f6bcf3c1d714 Empty all modules' symbol tables, so most circular references are
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
514 }
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
515 return av;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
516 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
517
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
518 void
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
519 PySys_SetArgv(argc, argv)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
520 int argc;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
521 char **argv;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
522 {
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
523 PyObject *av = makeargvobject(argc, argv);
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
524 PyObject *path = PySys_GetObject("path");
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 83
diff changeset
525 if (av == NULL)
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
526 Py_FatalError("no mem for sys.argv");
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
527 if (PySys_SetObject("argv", av) != 0)
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
528 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
529 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
530 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
531 char *p = NULL;
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
532 int n = 0;
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
533 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
534 #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
535 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
536 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
537 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
538 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
539 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
540 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
541 /* 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
542 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
543 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
544 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
545 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
546 ; /* 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
547 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
548 /* 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
549 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
550 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
551 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
552 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
553 /* 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
554 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
555 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
556 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
557 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
558 }
db673e98f28d Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents: 5047
diff changeset
559 }
db673e98f28d Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents: 5047
diff changeset
560 }
db673e98f28d Expand one level of symbolic link in sys.argv[0] before inserting its
Guido van Rossum <guido@python.org>
parents: 5047
diff changeset
561 #endif /* HAVE_READLINK */
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
562 #if SEP == '\\' /* Special case for MS filename syntax */
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
563 if (argc > 0 && argv0 != NULL) {
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
564 char *q;
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
565 p = strrchr(argv0, SEP);
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
566 /* Test for alternate separator */
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
567 q = strrchr(p ? p : argv0, '/');
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
568 if (q != NULL)
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
569 p = q;
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
570 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
571 n = p + 1 - argv0;
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
572 if (n > 1 && p[-1] != ':')
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
573 n--; /* Drop trailing separator */
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
574 }
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
575 }
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
576 #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
577 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
578 p = strrchr(argv0, SEP);
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
579 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
580 n = p + 1 - argv0;
4256
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
581 #if SEP == '/' /* Special case for Unix filename syntax */
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
582 if (n > 1)
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
583 n--; /* Drop trailing separator */
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
584 #endif /* Unix */
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
585 }
e225e70fd657 Changes to setpythonpath():
Guido van Rossum <guido@python.org>
parents: 4126
diff changeset
586 #endif /* All others */
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
587 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
588 if (a == NULL)
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
589 Py_FatalError("no mem for sys.path insertion");
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
590 if (PyList_Insert(path, 0, a) < 0)
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
591 Py_FatalError("sys.path.insert(0) failed");
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
592 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
593 }
5372
424922afc1bb Quickly renamed.
Guido van Rossum <guido@python.org>
parents: 5340
diff changeset
594 Py_DECREF(av);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
595 }
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
596
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
597
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
598 /* 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
599 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
600
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
601 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
602 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
603
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
604 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
605 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
606 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
607
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
608 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
609 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
610
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
611 *** 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
612
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
613 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
614 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
615 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
616 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
617 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
618 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
619
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
620 */
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
621
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
622 static 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
623 mywrite(name, 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
624 char *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
625 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
626 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
627 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
628 {
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
629 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
630 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: 7402
diff changeset
631
9328
81574e4646b4 Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents: 8840
diff changeset
632 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
633 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
634 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
635 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
636 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
637 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
638 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
639 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
640 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
641 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
642 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
643 }
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
644 }
9328
81574e4646b4 Patches for mywrite() by Marc Lemburg: save/restore the error state
Guido van Rossum <guido@python.org>
parents: 8840
diff changeset
645 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
646 }
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
647
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
648 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
649 #ifdef HAVE_STDARG_PROTOTYPES
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
650 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
651 #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
652 PySys_WriteStdout(va_alist)
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
653 va_dcl
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
654 #endif
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
655 {
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
656 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
657
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
658 #ifdef HAVE_STDARG_PROTOTYPES
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
659 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
660 #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
661 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
662 va_start(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
663 format = va_arg(va, char *);
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
664 #endif
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
665 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
666 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
667 }
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
668
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
669 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
670 #ifdef HAVE_STDARG_PROTOTYPES
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
671 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
672 #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
673 PySys_WriteStderr(va_alist)
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
674 va_dcl
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
675 #endif
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
676 {
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
677 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
678
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
679 #ifdef HAVE_STDARG_PROTOTYPES
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
680 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
681 #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
682 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
683 va_start(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
684 format = va_arg(va, char *);
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
685 #endif
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
686 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
687 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
688 }