Mercurial > cpython-lru_cache-weakref

annotate Modules/main.c @ 25838:8540887bcec6 2.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 3513a9d090a9
children 05443430d7ed c454b76d51e7
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1 /* Python interpreter main program */
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2
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3 #include "Python.h"
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4 #include "osdefs.h"
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5 #include "compile.h" /* For CO_FUTURE_DIVISION */
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6
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7 #ifdef MS_WINDOWS
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8 #include <fcntl.h>
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9 #endif
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10
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11 #if defined(PYOS_OS2) || defined(MS_WINDOWS)
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12 #define PYTHONHOMEHELP "<prefix>\\lib"
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13 #else
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14 #define PYTHONHOMEHELP "<prefix>/pythonX.X"
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15 #endif
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16
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17 #include "pygetopt.h"
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18
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19 #define COPYRIGHT \
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20 "Type \"help\", \"copyright\", \"credits\" or \"license\" " \
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21 "for more information."
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22
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23 /* For Py_GetArgcArgv(); set by main() */
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24 static char **orig_argv;
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25 static int orig_argc;
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26
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27 /* command line options */
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28 #define BASE_OPTS "c:dEhiOQ:StuUvVW:xX"
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29
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30 #ifndef RISCOS
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31 #define PROGRAM_OPTS BASE_OPTS
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32 #else /*RISCOS*/
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33 /* extra option saying that we are running under a special task window
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34 frontend; especially my_readline will behave different */
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35 #define PROGRAM_OPTS BASE_OPTS "w"
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36 /* corresponding flag */
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37 extern int Py_RISCOSWimpFlag;
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38 #endif /*RISCOS*/
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39
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40 /* Short usage message (with %s for argv0) */
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41 static char *usage_line =
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42 "usage: %s [option] ... [-c cmd | file | -] [arg] ...\n";
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43
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44 /* Long usage message, split into parts < 512 bytes */
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45 static char *usage_1 = "\
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46 Options and arguments (and corresponding environment variables):\n\
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47 -c cmd : program passed in as string (terminates option list)\n\
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48 -d : debug output from parser (also PYTHONDEBUG=x)\n\
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49 -E : ignore environment variables (such as PYTHONPATH)\n\
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50 -h : print this help message and exit\n\
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51 -i : inspect interactively after running script, (also PYTHONINSPECT=x)\n\
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52 and force prompts, even if stdin does not appear to be a terminal\n\
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53 ";
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54 static char *usage_2 = "\
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55 -O : optimize generated bytecode (a tad; also PYTHONOPTIMIZE=x)\n\
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56 -OO : remove doc-strings in addition to the -O optimizations\n\
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57 -Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew\n\
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58 -S : don't imply 'import site' on initialization\n\
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59 -t : issue warnings about inconsistent tab usage (-tt: issue errors)\n\
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60 -u : unbuffered binary stdout and stderr (also PYTHONUNBUFFERED=x)\n\
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61 ";
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62 static char *usage_3 = "\
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63 -v : verbose (trace import statements) (also PYTHONVERBOSE=x)\n\
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64 -V : print the Python version number and exit\n\
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65 -W arg : warning control (arg is action:message:category:module:lineno)\n\
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66 -x : skip first line of source, allowing use of non-Unix forms of #!cmd\n\
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67 file : program read from script file\n\
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68 - : program read from stdin (default; interactive mode if a tty)\n\
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69 ";
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70 static char *usage_4 = "\
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71 arg ...: arguments passed to program in sys.argv[1:]\n\
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72 Other environment variables:\n\
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73 PYTHONSTARTUP: file executed on interactive startup (no default)\n\
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74 PYTHONPATH : '%c'-separated list of directories prefixed to the\n\
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75 default module search path. The result is sys.path.\n\
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76 PYTHONHOME : alternate <prefix> directory (or <prefix>%c<exec_prefix>).\n\
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77 The default module search path uses %s.\n\
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78 PYTHONCASEOK : ignore case in 'import' statements (Windows).\n\
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79 ";
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81
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82 static void
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83 usage(int exitcode, char* program)
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84 {
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85 FILE *f = exitcode ? stderr : stdout;
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86
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87 fprintf(f, usage_line, program);
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88 if (exitcode)
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89 fprintf(f, "Try `python -h' for more information.\n");
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90 else {
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91 fprintf(f, usage_1);
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92 fprintf(f, usage_2);
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93 fprintf(f, usage_3);
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94 fprintf(f, usage_4, DELIM, DELIM, PYTHONHOMEHELP);
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95 }
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96 exit(exitcode);
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97 /*NOTREACHED*/
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98 }
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99
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100
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101 /* Main program */
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102
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103 DL_EXPORT(int)
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104 Py_Main(int argc, char **argv)
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105 {
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106 int c;
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107 int sts;
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108 char *command = NULL;
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109 char *filename = NULL;
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110 FILE *fp = stdin;
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111 char *p;
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112 int inspect = 0;
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113 int unbuffered = 0;
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114 int skipfirstline = 0;
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115 int stdin_is_interactive = 0;
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116 int help = 0;
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117 int version = 0;
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118 int saw_inspect_flag = 0;
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119 int saw_unbuffered_flag = 0;
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120 PyCompilerFlags cf;
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121
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122 cf.cf_flags = 0;
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123
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124 orig_argc = argc; /* For Py_GetArgcArgv() */
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125 orig_argv = argv;
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126
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127 #ifdef RISCOS
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128 Py_RISCOSWimpFlag = 0;
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129 #endif
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130
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131 PySys_ResetWarnOptions();
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132
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diff changeset
133 while ((c = _PyOS_GetOpt(argc, argv, PROGRAM_OPTS)) != EOF) {
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134 if (c == 'c') {
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135 /* -c is the last option; following arguments
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136 that look like options are left for the
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137 the command to interpret. */
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a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
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diff changeset
138 command = malloc(strlen(_PyOS_optarg) + 2);
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diff changeset
139 if (command == NULL)
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parents:
diff changeset
140 Py_FatalError(
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141 "not enough memory to copy -c argument");
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a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
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parents: 14603
diff changeset
142 strcpy(command, _PyOS_optarg);
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143 strcat(command, "\n");
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144 break;
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145 }
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diff changeset
146
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diff changeset
147 switch (c) {
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148
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diff changeset
149 case 'd':
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150 Py_DebugFlag++;
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151 break;
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152
19672
3584550a622a Rename the -D option to -Q, to avoid a Jython option name conflict.
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153 case 'Q':
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154 if (strcmp(_PyOS_optarg, "old") == 0) {
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155 Py_DivisionWarningFlag = 0;
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156 break;
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157 }
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158 if (strcmp(_PyOS_optarg, "warn") == 0) {
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159 Py_DivisionWarningFlag = 1;
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160 break;
b3271297b984 PEP 238 documented -Qwarn as warning only for classic int or long
Guido van Rossum <guido@python.org>
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161 }
b3271297b984 PEP 238 documented -Qwarn as warning only for classic int or long
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162 if (strcmp(_PyOS_optarg, "warnall") == 0) {
b3271297b984 PEP 238 documented -Qwarn as warning only for classic int or long
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163 Py_DivisionWarningFlag = 2;
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164 break;
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165 }
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parents: 18808
diff changeset
166 if (strcmp(_PyOS_optarg, "new") == 0) {
21251
45e1177424e1 SF bug #488514: -Qnew needs work
Tim Peters <tim.peters@gmail.com>
parents: 19673
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167 /* This only affects __main__ */
19633
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Guido van Rossum <guido@python.org>
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diff changeset
168 cf.cf_flags |= CO_FUTURE_DIVISION;
21251
45e1177424e1 SF bug #488514: -Qnew needs work
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parents: 19673
diff changeset
169 /* And this tells the eval loop to treat
45e1177424e1 SF bug #488514: -Qnew needs work
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parents: 19673
diff changeset
170 BINARY_DIVIDE as BINARY_TRUE_DIVIDE */
45e1177424e1 SF bug #488514: -Qnew needs work
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parents: 19673
diff changeset
171 _Py_QnewFlag = 1;
19633
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diff changeset
172 break;
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diff changeset
173 }
c0a44829bcd5 Add warning mode for classic division, almost exactly as specified in
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diff changeset
174 fprintf(stderr,
19673
b3271297b984 PEP 238 documented -Qwarn as warning only for classic int or long
Guido van Rossum <guido@python.org>
parents: 19672
diff changeset
175 "-Q option should be `-Qold', "
b3271297b984 PEP 238 documented -Qwarn as warning only for classic int or long
Guido van Rossum <guido@python.org>
parents: 19672
diff changeset
176 "`-Qwarn', `-Qwarnall', or `-Qnew' only\n");
19633
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diff changeset
177 usage(2, argv[0]);
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diff changeset
178 /* NOTREACHED */
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diff changeset
179
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diff changeset
180 case 'i':
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parents:
diff changeset
181 inspect++;
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parents: 18692
diff changeset
182 saw_inspect_flag = 1;
5109
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
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parents: 5000
diff changeset
183 Py_InteractiveFlag++;
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184 break;
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diff changeset
185
5166
7151bb727776 Add -O option which sets Py_OptimizeFlag to avoid emitting SET_LINENO.
Guido van Rossum <guido@python.org>
parents: 5113
diff changeset
186 case 'O':
7151bb727776 Add -O option which sets Py_OptimizeFlag to avoid emitting SET_LINENO.
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parents: 5113
diff changeset
187 Py_OptimizeFlag++;
7151bb727776 Add -O option which sets Py_OptimizeFlag to avoid emitting SET_LINENO.
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parents: 5113
diff changeset
188 break;
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parents: 5113
diff changeset
189
6203
f57ae68aa3ae Added -X option to suppress default import of site.py. Also split the
Guido van Rossum <guido@python.org>
parents: 6199
diff changeset
190 case 'S':
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Guido van Rossum <guido@python.org>
parents: 6199
diff changeset
191 Py_NoSiteFlag++;
f57ae68aa3ae Added -X option to suppress default import of site.py. Also split the
Guido van Rossum <guido@python.org>
parents: 6199
diff changeset
192 break;
f57ae68aa3ae Added -X option to suppress default import of site.py. Also split the
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diff changeset
193
18808
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
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parents: 18692
diff changeset
194 case 'E':
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
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parents: 18692
diff changeset
195 Py_IgnoreEnvironmentFlag++;
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
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parents: 18692
diff changeset
196 break;
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
197
7966
8c268d0e8822 Add -t option to set the Py_TabcheckFlag flag.
Guido van Rossum <guido@python.org>
parents: 7571
diff changeset
198 case 't':
8c268d0e8822 Add -t option to set the Py_TabcheckFlag flag.
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parents: 7571
diff changeset
199 Py_TabcheckFlag++;
8c268d0e8822 Add -t option to set the Py_TabcheckFlag flag.
Guido van Rossum <guido@python.org>
parents: 7571
diff changeset
200 break;
8c268d0e8822 Add -t option to set the Py_TabcheckFlag flag.
Guido van Rossum <guido@python.org>
parents: 7571
diff changeset
201
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parents:
diff changeset
202 case 'u':
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parents:
diff changeset
203 unbuffered++;
18808
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
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diff changeset
204 saw_unbuffered_flag = 1;
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parents:
diff changeset
205 break;
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parents:
diff changeset
206
f0d9f800a4aa Initial revision
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parents:
diff changeset
207 case 'v':
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parents:
diff changeset
208 Py_VerboseFlag++;
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parents:
diff changeset
209 break;
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parents:
diff changeset
210
16944
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
211 #ifdef RISCOS
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
212 case 'w':
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
213 Py_RISCOSWimpFlag = 1;
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
214 break;
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
215 #endif
4baa5a955532 RISCOS changes by dschwertberger.
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parents: 16752
diff changeset
216
6763
12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
Guido van Rossum <guido@python.org>
parents: 6538
diff changeset
217 case 'x':
12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
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parents: 6538
diff changeset
218 skipfirstline = 1;
12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
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parents: 6538
diff changeset
219 break;
12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
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parents: 6538
diff changeset
220
12537
7cc3dd7cd31a Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 10621
diff changeset
221 case 'U':
7cc3dd7cd31a Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 10621
diff changeset
222 Py_UnicodeFlag++;
7cc3dd7cd31a Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 10621
diff changeset
223 break;
14603
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
224 case 'h':
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
225 help++;
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
226 break;
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
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parents: 14411
diff changeset
227 case 'V':
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
228 version++;
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
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parents: 14411
diff changeset
229 break;
12537
7cc3dd7cd31a Marc-Andre Lemburg:
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parents: 10621
diff changeset
230
15593
9694909dbb0a Add the -W option.
Guido van Rossum <guido@python.org>
parents: 15374
diff changeset
231 case 'W':
9694909dbb0a Add the -W option.
Guido van Rossum <guido@python.org>
parents: 15374
diff changeset
232 PySys_AddWarnOption(_PyOS_optarg);
9694909dbb0a Add the -W option.
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parents: 15374
diff changeset
233 break;
9694909dbb0a Add the -W option.
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parents: 15374
diff changeset
234
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f0d9f800a4aa Initial revision
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parents:
diff changeset
235 /* This space reserved for other options */
f0d9f800a4aa Initial revision
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parents:
diff changeset
236
f0d9f800a4aa Initial revision
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parents:
diff changeset
237 default:
14603
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
238 usage(2, argv[0]);
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f0d9f800a4aa Initial revision
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parents:
diff changeset
239 /*NOTREACHED*/
f0d9f800a4aa Initial revision
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parents:
diff changeset
240
f0d9f800a4aa Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 }
f0d9f800a4aa Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
242 }
f0d9f800a4aa Initial revision
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parents:
diff changeset
243
14603
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
244 if (help)
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
245 usage(0, argv[0]);
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
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parents: 14411
diff changeset
246
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
247 if (version) {
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
248 fprintf(stderr, "Python %s\n", PY_VERSION);
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
249 exit(0);
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
250 }
80a782086a57 Py_Main(), usage(), usage_mid: Add -h and -V flags to print the usage
Barry Warsaw <barry@python.org>
parents: 14411
diff changeset
251
18808
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
252 if (!saw_inspect_flag &&
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
253 (p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
254 inspect = 1;
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
255 if (!saw_unbuffered_flag &&
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
256 (p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
257 unbuffered = 1;
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
258
15374
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
Thomas Wouters <thomas@python.org>
parents: 14603
diff changeset
259 if (command == NULL && _PyOS_optind < argc &&
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
Thomas Wouters <thomas@python.org>
parents: 14603
diff changeset
260 strcmp(argv[_PyOS_optind], "-") != 0)
5109
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
261 {
15374
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
Thomas Wouters <thomas@python.org>
parents: 14603
diff changeset
262 filename = argv[_PyOS_optind];
5109
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
263 if (filename != NULL) {
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
264 if ((fp = fopen(filename, "r")) == NULL) {
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
265 fprintf(stderr, "%s: can't open file '%s'\n",
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
266 argv[0], filename);
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
267 exit(2);
0bbf97861cd9 My version of Lee Busby's patches to make '-i' pretend stdin is a tty
Guido van Rossum <guido@python.org>
parents: 5000
diff changeset
268 }
6763
12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
Guido van Rossum <guido@python.org>
parents: 6538
diff changeset
269 else if (skipfirstline) {
10621
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
Guido van Rossum <guido@python.org>
parents: 10130
diff changeset
270 int ch;
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
Guido van Rossum <guido@python.org>
parents: 10130
diff changeset
271 /* Push back first newline so line numbers
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
Guido van Rossum <guido@python.org>
parents: 10130
diff changeset
272 remain the same */
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
Guido van Rossum <guido@python.org>
parents: 10130
diff changeset
273 while ((ch = getc(fp)) != EOF) {
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
Guido van Rossum <guido@python.org>
parents: 10130
diff changeset
274 if (ch == '\n') {
5b170f0da9fe Patch from Tim Peters to repare a the problem that tracebacks are off
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275 (void)ungetc(ch, fp);
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276 break;
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277 }
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278 }
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12824fe04a08 Two changes by Jeff Rush (slightly tweaked):
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279 }
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280 }
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281 }
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282
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283 stdin_is_interactive = Py_FdIsInteractive(stdin, (char *)0);
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284
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285 if (unbuffered) {
4934
6b61912d5f35 On Windows, -u implies binary mode for stdin/stdout
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286 #ifdef MS_WINDOWS
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7c7a186b6d86 Fix the _setmode() patch for MS_WINDOWS: include <fcntl.h> and use
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287 _setmode(fileno(stdin), O_BINARY);
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288 _setmode(fileno(stdout), O_BINARY);
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289 #endif
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290 #ifndef MPW
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291 #ifdef HAVE_SETVBUF
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292 setvbuf(stdin, (char *)NULL, _IONBF, BUFSIZ);
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293 setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ);
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294 setvbuf(stderr, (char *)NULL, _IONBF, BUFSIZ);
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295 #else /* !HAVE_SETVBUF */
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296 setbuf(stdin, (char *)NULL);
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297 setbuf(stdout, (char *)NULL);
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298 setbuf(stderr, (char *)NULL);
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299 #endif /* !HAVE_SETVBUF */
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300 #else /* MPW */
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301 /* On MPW (3.2) unbuffered seems to hang */
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302 setvbuf(stdin, (char *)NULL, _IOLBF, BUFSIZ);
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303 setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ);
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304 setvbuf(stderr, (char *)NULL, _IOLBF, BUFSIZ);
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305 #endif /* MPW */
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306 }
5319
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307 else if (Py_InteractiveFlag) {
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c3ddb84a7761 OK, I lied. On Windows, _IOLBF seems to be the same as full
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308 #ifdef MS_WINDOWS
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309 /* Doesn't have to have line-buffered -- use unbuffered */
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310 /* Any set[v]buf(stdin, ...) screws up Tkinter :-( */
5320
c3ddb84a7761 OK, I lied. On Windows, _IOLBF seems to be the same as full
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311 setvbuf(stdout, (char *)NULL, _IONBF, BUFSIZ);
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312 #else /* !MS_WINDOWS */
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313 #ifdef HAVE_SETVBUF
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314 setvbuf(stdin, (char *)NULL, _IOLBF, BUFSIZ);
c3ddb84a7761 OK, I lied. On Windows, _IOLBF seems to be the same as full
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315 setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ);
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diff changeset
316 #endif /* HAVE_SETVBUF */
968aaba281c5 Don't use setvbuf unless HAVE_SETVBUF is defined.
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317 #endif /* !MS_WINDOWS */
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318 /* Leave stderr alone - it should be unbuffered anyway. */
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319 }
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320
5851
edaf1cb63dc0 This is no longer the real main program; it now defines Py_Main(), so
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diff changeset
321 Py_SetProgramName(argv[0]);
edaf1cb63dc0 This is no longer the real main program; it now defines Py_Main(), so
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diff changeset
322 Py_Initialize();
edaf1cb63dc0 This is no longer the real main program; it now defines Py_Main(), so
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323
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324 if (Py_VerboseFlag ||
5113
fb8cefcefd81 Add parentheses around && within || as gcc -Wall advises.
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325 (command == NULL && filename == NULL && stdin_is_interactive))
5547
98d4e97daac0 Add platform to welcome message.
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parents: 5394
diff changeset
326 fprintf(stderr, "Python %s on %s\n%s\n",
14411
a707a5f17139 Instead of printing all 9 lines of copyright info, print
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diff changeset
327 Py_GetVersion(), Py_GetPlatform(), COPYRIGHT);
19633
c0a44829bcd5 Add warning mode for classic division, almost exactly as specified in
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diff changeset
328
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329 if (command != NULL) {
15374
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
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parents: 14603
diff changeset
330 /* Backup _PyOS_optind and force sys.argv[0] = '-c' */
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
Thomas Wouters <thomas@python.org>
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diff changeset
331 _PyOS_optind--;
a826a46bae54 Move our own getopt() implementation to _PyOS_GetOpt(), and use it
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diff changeset
332 argv[_PyOS_optind] = "-c";
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333 }
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334
15374
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Thomas Wouters <thomas@python.org>
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335 PySys_SetArgv(argc-_PyOS_optind, argv+_PyOS_optind);
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336
6316
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
337 if ((inspect || (command == NULL && filename == NULL)) &&
c2359665be80 Move the "import readline" to an earlier place so it is also done when
Guido van Rossum <guido@python.org>
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diff changeset
338 isatty(fileno(stdin))) {
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
339 PyObject *v;
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
340 v = PyImport_ImportModule("readline");
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
341 if (v == NULL)
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
342 PyErr_Clear();
c2359665be80 Move the "import readline" to an earlier place so it is also done when
Guido van Rossum <guido@python.org>
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diff changeset
343 else
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
344 Py_DECREF(v);
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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345 }
c2359665be80 Move the "import readline" to an earlier place so it is also done when
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diff changeset
346
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347 if (command) {
19633
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348 sts = PyRun_SimpleStringFlags(command, &cf) != 0;
5922
44ddc711ee2d Free the malloc'ed buffer that holds the command once we're done with it.
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diff changeset
349 free(command);
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350 }
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351 else {
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diff changeset
352 if (filename == NULL && stdin_is_interactive) {
18808
a8b1acc7a21f Add -E command line switch (ignore environment variables like PYTHONHOME
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18692
diff changeset
353 char *startup = Py_GETENV("PYTHONSTARTUP");
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diff changeset
354 if (startup != NULL && startup[0] != '\0') {
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diff changeset
355 FILE *fp = fopen(startup, "r");
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diff changeset
356 if (fp != NULL) {
f0d9f800a4aa Initial revision
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357 (void) PyRun_SimpleFile(fp, startup);
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358 PyErr_Clear();
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diff changeset
359 fclose(fp);
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diff changeset
360 }
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361 }
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362 }
17125
2054cea38754 Extend support for from __future__ import nested_scopes
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 16944
diff changeset
363 /* XXX */
2054cea38754 Extend support for from __future__ import nested_scopes
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
364 sts = PyRun_AnyFileExFlags(
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diff changeset
365 fp,
14228
20377f15b96a Add three new APIs: PyRun_AnyFileEx(), PyRun_SimpleFileEx(),
Guido van Rossum <guido@python.org>
parents: 13482
diff changeset
366 filename == NULL ? "<stdin>" : filename,
17125
2054cea38754 Extend support for from __future__ import nested_scopes
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 16944
diff changeset
367 filename != NULL, &cf) != 0;
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368 }
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diff changeset
369
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370 if (inspect && stdin_is_interactive &&
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371 (filename != NULL || command != NULL))
17125
2054cea38754 Extend support for from __future__ import nested_scopes
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 16944
diff changeset
372 /* XXX */
2054cea38754 Extend support for from __future__ import nested_scopes
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 16944
diff changeset
373 sts = PyRun_AnyFileFlags(stdin, "<stdin>", &cf) != 0;
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374
5940
eef76b3cd9ae Py_Cleanup() is now Py_Finalize().
Guido van Rossum <guido@python.org>
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diff changeset
375 Py_Finalize();
16944
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
376 #ifdef RISCOS
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
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diff changeset
377 if(Py_RISCOSWimpFlag)
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
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diff changeset
378 fprintf(stderr, "\x0cq\x0c"); /* make frontend quit */
4baa5a955532 RISCOS changes by dschwertberger.
Guido van Rossum <guido@python.org>
parents: 16752
diff changeset
379 #endif
16752
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
380
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
381 #ifdef __INSURE__
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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parents: 16731
diff changeset
382 /* Insure++ is a memory analysis tool that aids in discovering
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
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diff changeset
383 * memory leaks and other memory problems. On Python exit, the
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
parents: 16731
diff changeset
384 * interned string dictionary is flagged as being in use at exit
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
385 * (which it is). Under normal circumstances, this is fine because
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
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diff changeset
386 * the memory will be automatically reclaimed by the system. Under
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
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diff changeset
387 * memory debugging, it's a huge source of useless noise, so we
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
parents: 16731
diff changeset
388 * trade off slower shutdown for less distraction in the memory
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
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diff changeset
389 * reports. -baw
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
390 */
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
391 _Py_ReleaseInternedStrings();
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
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diff changeset
392 #endif /* __INSURE__ */
5c3aedc969da Py_Main(): When compiled by Insure (i.e. __INSURE__ is defined), call
Barry Warsaw <barry@python.org>
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diff changeset
393
5922
44ddc711ee2d Free the malloc'ed buffer that holds the command once we're done with it.
Guido van Rossum <guido@python.org>
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diff changeset
394 return sts;
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diff changeset
395 }
f0d9f800a4aa Initial revision
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396
f0d9f800a4aa Initial revision
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397
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398 /* Make the *original* argc/argv available to other modules.
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399 This is rare, but it is needed by the secureware extension. */
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400
f0d9f800a4aa Initial revision
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diff changeset
401 void
13482
000a1c7eb09f - changed 1.5 to 2.0 in the help text
Fredrik Lundh <fredrik@pythonware.com>
parents: 13256
diff changeset
402 Py_GetArgcArgv(int *argc, char ***argv)
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diff changeset
403 {
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diff changeset
404 *argc = orig_argc;
f0d9f800a4aa Initial revision
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diff changeset
405 *argv = orig_argv;
f0d9f800a4aa Initial revision
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diff changeset
406 }