Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
| 11 | /* Python interpreter top-level routines, including init/exit */ |
| 12 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 13 | #include "Python.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 14 | |
| 15 | #include "grammar.h" |
| 16 | #include "node.h" |
| 17 | #include "parsetok.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 18 | #include "errcode.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 19 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 20 | #include "eval.h" |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 21 | #include "marshal.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 22 | |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 23 | #ifdef HAVE_UNISTD_H |
| 24 | #include <unistd.h> |
| 25 | #endif |
| 26 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 27 | #ifdef HAVE_SIGNAL_H |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 28 | #include <signal.h> |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 29 | #endif |
| 30 | |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 31 | #ifdef MS_WIN32 |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 32 | #undef BYTE |
| 33 | #include "windows.h" |
| 34 | #endif |
| 35 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 36 | extern char *Py_GetPath(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 37 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 38 | extern grammar _PyParser_Grammar; /* From graminit.c */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 39 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 40 | /* Forward */ |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame^] | 41 | static void initmain(void); |
| 42 | static void initsite(void); |
| 43 | static PyObject *run_err_node(node *n, char *filename, |
| 44 | PyObject *globals, PyObject *locals); |
| 45 | static PyObject *run_node(node *n, char *filename, |
| 46 | PyObject *globals, PyObject *locals); |
| 47 | static PyObject *run_pyc_file(FILE *fp, char *filename, |
| 48 | PyObject *globals, PyObject *locals); |
| 49 | static void err_input(perrdetail *); |
| 50 | static void initsigs(void); |
| 51 | static void call_sys_exitfunc(void); |
| 52 | static void call_ll_exitfuncs(void); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 53 | |
Guido van Rossum | bffd683 | 2000-01-20 22:32:56 +0000 | [diff] [blame] | 54 | #ifdef Py_TRACE_REFS |
| 55 | int _Py_AskYesNo(char *prompt); |
| 56 | #endif |
| 57 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 58 | extern void _PyUnicode_Init(); |
| 59 | extern void _PyUnicode_Fini(); |
| 60 | extern void _PyCodecRegistry_Init(); |
| 61 | extern void _PyCodecRegistry_Fini(); |
| 62 | |
| 63 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 64 | int Py_DebugFlag; /* Needed by parser.c */ |
| 65 | int Py_VerboseFlag; /* Needed by import.c */ |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 66 | int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */ |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 67 | int Py_NoSiteFlag; /* Suppress 'import site' */ |
Barry Warsaw | 3ce0964 | 2000-05-02 19:18:59 +0000 | [diff] [blame] | 68 | int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c: deprecated */ |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 69 | int Py_FrozenFlag; /* Needed by getpath.c */ |
Guido van Rossum | b16d197 | 2000-05-01 17:55:15 +0000 | [diff] [blame] | 70 | int Py_UnicodeFlag = 0; /* Needed by compile.c */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 71 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 72 | static int initialized = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 73 | |
Guido van Rossum | e3c0d5e | 1997-08-22 04:20:13 +0000 | [diff] [blame] | 74 | /* API to access the initialized flag -- useful for eroteric use */ |
| 75 | |
| 76 | int |
| 77 | Py_IsInitialized() |
| 78 | { |
| 79 | return initialized; |
| 80 | } |
| 81 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 82 | /* Global initializations. Can be undone by Py_Finalize(). Don't |
| 83 | call this twice without an intervening Py_Finalize() call. When |
| 84 | initializations fail, a fatal error is issued and the function does |
| 85 | not return. On return, the first thread and interpreter state have |
| 86 | been created. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 87 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 88 | Locking: you must hold the interpreter lock while calling this. |
| 89 | (If the lock has not yet been initialized, that's equivalent to |
| 90 | having the lock, but you cannot use multiple threads.) |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 91 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 92 | */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 93 | |
| 94 | void |
| 95 | Py_Initialize() |
| 96 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 97 | PyInterpreterState *interp; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 98 | PyThreadState *tstate; |
| 99 | PyObject *bimod, *sysmod; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 100 | char *p; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 101 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 102 | if (initialized) |
Guido van Rossum | aa61505 | 1997-08-20 22:40:18 +0000 | [diff] [blame] | 103 | return; |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 104 | initialized = 1; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 105 | |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 106 | if ((p = getenv("PYTHONDEBUG")) && *p != '\0') |
| 107 | Py_DebugFlag = 1; |
| 108 | if ((p = getenv("PYTHONVERBOSE")) && *p != '\0') |
| 109 | Py_VerboseFlag = 1; |
Guido van Rossum | 562f5b1 | 1998-10-07 14:50:42 +0000 | [diff] [blame] | 110 | if ((p = getenv("PYTHONOPTIMIZE")) && *p != '\0') |
| 111 | Py_OptimizeFlag = 1; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 112 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 113 | interp = PyInterpreterState_New(); |
| 114 | if (interp == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 115 | Py_FatalError("Py_Initialize: can't make first interpreter"); |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 116 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 117 | tstate = PyThreadState_New(interp); |
| 118 | if (tstate == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 119 | Py_FatalError("Py_Initialize: can't make first thread"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 120 | (void) PyThreadState_Swap(tstate); |
| 121 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 122 | interp->modules = PyDict_New(); |
| 123 | if (interp->modules == NULL) |
| 124 | Py_FatalError("Py_Initialize: can't make modules dictionary"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 125 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 126 | /* Init codec registry */ |
| 127 | _PyCodecRegistry_Init(); |
| 128 | |
| 129 | /* Init Unicode implementation; relies on the codec registry */ |
| 130 | _PyUnicode_Init(); |
| 131 | |
Jeremy Hylton | 4a3dd2d | 2000-04-14 19:13:24 +0000 | [diff] [blame] | 132 | _PyCompareState_Key = PyString_InternFromString("cmp_state"); |
| 133 | |
Barry Warsaw | f242aa0 | 2000-05-25 23:09:49 +0000 | [diff] [blame] | 134 | bimod = _PyBuiltin_Init(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 135 | if (bimod == NULL) |
| 136 | Py_FatalError("Py_Initialize: can't initialize __builtin__"); |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 137 | interp->builtins = PyModule_GetDict(bimod); |
| 138 | Py_INCREF(interp->builtins); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 139 | |
| 140 | sysmod = _PySys_Init(); |
| 141 | if (sysmod == NULL) |
| 142 | Py_FatalError("Py_Initialize: can't initialize sys"); |
| 143 | interp->sysdict = PyModule_GetDict(sysmod); |
| 144 | Py_INCREF(interp->sysdict); |
| 145 | _PyImport_FixupExtension("sys", "sys"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 146 | PySys_SetPath(Py_GetPath()); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 147 | PyDict_SetItemString(interp->sysdict, "modules", |
| 148 | interp->modules); |
| 149 | |
Guido van Rossum | 7c85ab8 | 1999-07-08 17:26:56 +0000 | [diff] [blame] | 150 | _PyImport_Init(); |
| 151 | |
Barry Warsaw | f242aa0 | 2000-05-25 23:09:49 +0000 | [diff] [blame] | 152 | /* initialize builtin exceptions */ |
| 153 | init_exceptions(); |
| 154 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 155 | /* phase 2 of builtins */ |
Barry Warsaw | 963b871 | 1997-09-18 16:42:02 +0000 | [diff] [blame] | 156 | _PyImport_FixupExtension("__builtin__", "__builtin__"); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 157 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 158 | initsigs(); /* Signal handling stuff, including initintr() */ |
| 159 | |
| 160 | initmain(); /* Module __main__ */ |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 161 | if (!Py_NoSiteFlag) |
| 162 | initsite(); /* Module site */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 163 | } |
| 164 | |
Guido van Rossum | 2edcf0d | 1998-12-15 16:12:00 +0000 | [diff] [blame] | 165 | #ifdef COUNT_ALLOCS |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame^] | 166 | extern void dump_counts(void); |
Guido van Rossum | 2edcf0d | 1998-12-15 16:12:00 +0000 | [diff] [blame] | 167 | #endif |
| 168 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 169 | /* Undo the effect of Py_Initialize(). |
| 170 | |
| 171 | Beware: if multiple interpreter and/or thread states exist, these |
| 172 | are not wiped out; only the current thread and interpreter state |
| 173 | are deleted. But since everything else is deleted, those other |
| 174 | interpreter and thread states should no longer be used. |
| 175 | |
| 176 | (XXX We should do better, e.g. wipe out all interpreters and |
| 177 | threads.) |
| 178 | |
| 179 | Locking: as above. |
| 180 | |
| 181 | */ |
| 182 | |
| 183 | void |
| 184 | Py_Finalize() |
| 185 | { |
| 186 | PyInterpreterState *interp; |
| 187 | PyThreadState *tstate; |
| 188 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 189 | if (!initialized) |
Guido van Rossum | aa61505 | 1997-08-20 22:40:18 +0000 | [diff] [blame] | 190 | return; |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 191 | initialized = 0; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 192 | |
Guido van Rossum | 4cc462e | 1998-01-19 22:00:38 +0000 | [diff] [blame] | 193 | call_sys_exitfunc(); |
| 194 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 195 | /* Get current thread state and interpreter pointer */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 196 | tstate = PyThreadState_Get(); |
| 197 | interp = tstate->interp; |
| 198 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 199 | /* Disable signal handling */ |
| 200 | PyOS_FiniInterrupts(); |
| 201 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 202 | /* Cleanup Unicode implementation */ |
| 203 | _PyUnicode_Fini(); |
| 204 | |
| 205 | /* Cleanup Codec registry */ |
| 206 | _PyCodecRegistry_Fini(); |
| 207 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 208 | /* Destroy all modules */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 209 | PyImport_Cleanup(); |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 210 | |
Guido van Rossum | 1707aad | 1997-12-08 23:43:45 +0000 | [diff] [blame] | 211 | /* Destroy the database used by _PyImport_{Fixup,Find}Extension */ |
| 212 | _PyImport_Fini(); |
| 213 | |
| 214 | /* Debugging stuff */ |
| 215 | #ifdef COUNT_ALLOCS |
| 216 | dump_counts(); |
| 217 | #endif |
| 218 | |
| 219 | #ifdef Py_REF_DEBUG |
| 220 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
| 221 | #endif |
| 222 | |
| 223 | #ifdef Py_TRACE_REFS |
Guido van Rossum | eca4784 | 2000-04-27 23:44:15 +0000 | [diff] [blame] | 224 | if ( |
| 225 | #ifdef MS_WINDOWS /* Only ask on Windows if env var set */ |
| 226 | getenv("PYTHONDUMPREFS") && |
| 227 | #endif /* MS_WINDOWS */ |
| 228 | _Py_AskYesNo("Print left references?")) { |
Guido van Rossum | 1707aad | 1997-12-08 23:43:45 +0000 | [diff] [blame] | 229 | _Py_PrintReferences(stderr); |
| 230 | } |
| 231 | #endif /* Py_TRACE_REFS */ |
| 232 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 233 | /* Now we decref the exception classes. After this point nothing |
| 234 | can raise an exception. That's okay, because each Fini() method |
| 235 | below has been checked to make sure no exceptions are ever |
| 236 | raised. |
| 237 | */ |
Barry Warsaw | f242aa0 | 2000-05-25 23:09:49 +0000 | [diff] [blame] | 238 | fini_exceptions(); |
| 239 | |
| 240 | /* Delete current thread */ |
| 241 | PyInterpreterState_Clear(interp); |
| 242 | PyThreadState_Swap(NULL); |
| 243 | PyInterpreterState_Delete(interp); |
| 244 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 245 | PyMethod_Fini(); |
| 246 | PyFrame_Fini(); |
| 247 | PyCFunction_Fini(); |
| 248 | PyTuple_Fini(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 249 | PyString_Fini(); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 250 | PyInt_Fini(); |
| 251 | PyFloat_Fini(); |
| 252 | |
| 253 | /* XXX Still allocated: |
| 254 | - various static ad-hoc pointers to interned strings |
| 255 | - int and float free list blocks |
| 256 | - whatever various modules and libraries allocate |
| 257 | */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 258 | |
| 259 | PyGrammar_RemoveAccelerators(&_PyParser_Grammar); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 260 | |
| 261 | call_ll_exitfuncs(); |
| 262 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 263 | #ifdef Py_TRACE_REFS |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 264 | _Py_ResetReferences(); |
| 265 | #endif /* Py_TRACE_REFS */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | /* Create and initialize a new interpreter and thread, and return the |
| 269 | new thread. This requires that Py_Initialize() has been called |
| 270 | first. |
| 271 | |
| 272 | Unsuccessful initialization yields a NULL pointer. Note that *no* |
| 273 | exception information is available even in this case -- the |
| 274 | exception information is held in the thread, and there is no |
| 275 | thread. |
| 276 | |
| 277 | Locking: as above. |
| 278 | |
| 279 | */ |
| 280 | |
| 281 | PyThreadState * |
| 282 | Py_NewInterpreter() |
| 283 | { |
| 284 | PyInterpreterState *interp; |
| 285 | PyThreadState *tstate, *save_tstate; |
| 286 | PyObject *bimod, *sysmod; |
| 287 | |
| 288 | if (!initialized) |
| 289 | Py_FatalError("Py_NewInterpreter: call Py_Initialize first"); |
| 290 | |
| 291 | interp = PyInterpreterState_New(); |
| 292 | if (interp == NULL) |
| 293 | return NULL; |
| 294 | |
| 295 | tstate = PyThreadState_New(interp); |
| 296 | if (tstate == NULL) { |
| 297 | PyInterpreterState_Delete(interp); |
| 298 | return NULL; |
| 299 | } |
| 300 | |
| 301 | save_tstate = PyThreadState_Swap(tstate); |
| 302 | |
| 303 | /* XXX The following is lax in error checking */ |
| 304 | |
| 305 | interp->modules = PyDict_New(); |
| 306 | |
| 307 | bimod = _PyImport_FindExtension("__builtin__", "__builtin__"); |
| 308 | if (bimod != NULL) { |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 309 | interp->builtins = PyModule_GetDict(bimod); |
| 310 | Py_INCREF(interp->builtins); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 311 | } |
| 312 | sysmod = _PyImport_FindExtension("sys", "sys"); |
| 313 | if (bimod != NULL && sysmod != NULL) { |
| 314 | interp->sysdict = PyModule_GetDict(sysmod); |
| 315 | Py_INCREF(interp->sysdict); |
| 316 | PySys_SetPath(Py_GetPath()); |
| 317 | PyDict_SetItemString(interp->sysdict, "modules", |
| 318 | interp->modules); |
| 319 | initmain(); |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 320 | if (!Py_NoSiteFlag) |
| 321 | initsite(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | if (!PyErr_Occurred()) |
| 325 | return tstate; |
| 326 | |
| 327 | /* Oops, it didn't work. Undo it all. */ |
| 328 | |
| 329 | PyErr_Print(); |
| 330 | PyThreadState_Clear(tstate); |
| 331 | PyThreadState_Swap(save_tstate); |
| 332 | PyThreadState_Delete(tstate); |
| 333 | PyInterpreterState_Delete(interp); |
| 334 | |
| 335 | return NULL; |
| 336 | } |
| 337 | |
| 338 | /* Delete an interpreter and its last thread. This requires that the |
| 339 | given thread state is current, that the thread has no remaining |
| 340 | frames, and that it is its interpreter's only remaining thread. |
| 341 | It is a fatal error to violate these constraints. |
| 342 | |
| 343 | (Py_Finalize() doesn't have these constraints -- it zaps |
| 344 | everything, regardless.) |
| 345 | |
| 346 | Locking: as above. |
| 347 | |
| 348 | */ |
| 349 | |
| 350 | void |
| 351 | Py_EndInterpreter(tstate) |
| 352 | PyThreadState *tstate; |
| 353 | { |
| 354 | PyInterpreterState *interp = tstate->interp; |
| 355 | |
| 356 | if (tstate != PyThreadState_Get()) |
| 357 | Py_FatalError("Py_EndInterpreter: thread is not current"); |
| 358 | if (tstate->frame != NULL) |
| 359 | Py_FatalError("Py_EndInterpreter: thread still has a frame"); |
| 360 | if (tstate != interp->tstate_head || tstate->next != NULL) |
| 361 | Py_FatalError("Py_EndInterpreter: not the last thread"); |
| 362 | |
| 363 | PyImport_Cleanup(); |
| 364 | PyInterpreterState_Clear(interp); |
| 365 | PyThreadState_Swap(NULL); |
| 366 | PyInterpreterState_Delete(interp); |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | static char *progname = "python"; |
| 370 | |
| 371 | void |
| 372 | Py_SetProgramName(pn) |
| 373 | char *pn; |
| 374 | { |
| 375 | if (pn && *pn) |
| 376 | progname = pn; |
| 377 | } |
| 378 | |
| 379 | char * |
| 380 | Py_GetProgramName() |
| 381 | { |
| 382 | return progname; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 383 | } |
| 384 | |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 385 | static char *default_home = NULL; |
| 386 | |
| 387 | void |
| 388 | Py_SetPythonHome(home) |
| 389 | char *home; |
| 390 | { |
| 391 | default_home = home; |
| 392 | } |
| 393 | |
| 394 | char * |
| 395 | Py_GetPythonHome() |
| 396 | { |
| 397 | char *home = default_home; |
| 398 | if (home == NULL) |
| 399 | home = getenv("PYTHONHOME"); |
| 400 | return home; |
| 401 | } |
| 402 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 403 | /* Create __main__ module */ |
| 404 | |
| 405 | static void |
| 406 | initmain() |
| 407 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 408 | PyObject *m, *d; |
| 409 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 410 | if (m == NULL) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 411 | Py_FatalError("can't create __main__ module"); |
| 412 | d = PyModule_GetDict(m); |
| 413 | if (PyDict_GetItemString(d, "__builtins__") == NULL) { |
Guido van Rossum | 858cb73 | 1997-11-19 16:15:37 +0000 | [diff] [blame] | 414 | PyObject *bimod = PyImport_ImportModule("__builtin__"); |
| 415 | if (bimod == NULL || |
| 416 | PyDict_SetItemString(d, "__builtins__", bimod) != 0) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 417 | Py_FatalError("can't add __builtins__ to __main__"); |
Barry Warsaw | 3d05b1a | 1999-01-29 21:30:22 +0000 | [diff] [blame] | 418 | Py_DECREF(bimod); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 419 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 420 | } |
| 421 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 422 | /* Import the site module (not into __main__ though) */ |
| 423 | |
| 424 | static void |
| 425 | initsite() |
| 426 | { |
| 427 | PyObject *m, *f; |
| 428 | m = PyImport_ImportModule("site"); |
| 429 | if (m == NULL) { |
| 430 | f = PySys_GetObject("stderr"); |
| 431 | if (Py_VerboseFlag) { |
| 432 | PyFile_WriteString( |
| 433 | "'import site' failed; traceback:\n", f); |
| 434 | PyErr_Print(); |
| 435 | } |
| 436 | else { |
| 437 | PyFile_WriteString( |
| 438 | "'import site' failed; use -v for traceback\n", f); |
| 439 | PyErr_Clear(); |
| 440 | } |
| 441 | } |
| 442 | else { |
| 443 | Py_DECREF(m); |
| 444 | } |
| 445 | } |
| 446 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 447 | /* Parse input from a file and execute it */ |
| 448 | |
| 449 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 450 | PyRun_AnyFile(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 451 | FILE *fp; |
| 452 | char *filename; |
| 453 | { |
| 454 | if (filename == NULL) |
| 455 | filename = "???"; |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 456 | if (Py_FdIsInteractive(fp, filename)) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 457 | return PyRun_InteractiveLoop(fp, filename); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 458 | else |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 459 | return PyRun_SimpleFile(fp, filename); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 460 | } |
| 461 | |
| 462 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 463 | PyRun_InteractiveLoop(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 464 | FILE *fp; |
| 465 | char *filename; |
| 466 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 467 | PyObject *v; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 468 | int ret; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 469 | v = PySys_GetObject("ps1"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 470 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 471 | PySys_SetObject("ps1", v = PyString_FromString(">>> ")); |
| 472 | Py_XDECREF(v); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 473 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 474 | v = PySys_GetObject("ps2"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 475 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 476 | PySys_SetObject("ps2", v = PyString_FromString("... ")); |
| 477 | Py_XDECREF(v); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 478 | } |
| 479 | for (;;) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 480 | ret = PyRun_InteractiveOne(fp, filename); |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 481 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 482 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 483 | #endif |
| 484 | if (ret == E_EOF) |
| 485 | return 0; |
| 486 | /* |
| 487 | if (ret == E_NOMEM) |
| 488 | return -1; |
| 489 | */ |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 494 | PyRun_InteractiveOne(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 495 | FILE *fp; |
| 496 | char *filename; |
| 497 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 498 | PyObject *m, *d, *v, *w; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 499 | node *n; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 500 | perrdetail err; |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 501 | char *ps1 = "", *ps2 = ""; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 502 | v = PySys_GetObject("ps1"); |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 503 | if (v != NULL) { |
| 504 | v = PyObject_Str(v); |
| 505 | if (v == NULL) |
| 506 | PyErr_Clear(); |
| 507 | else if (PyString_Check(v)) |
| 508 | ps1 = PyString_AsString(v); |
| 509 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 510 | w = PySys_GetObject("ps2"); |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 511 | if (w != NULL) { |
| 512 | w = PyObject_Str(w); |
| 513 | if (w == NULL) |
| 514 | PyErr_Clear(); |
| 515 | else if (PyString_Check(w)) |
| 516 | ps2 = PyString_AsString(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 517 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 518 | n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 519 | Py_single_input, ps1, ps2, &err); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 520 | Py_XDECREF(v); |
| 521 | Py_XDECREF(w); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 522 | if (n == NULL) { |
| 523 | if (err.error == E_EOF) { |
| 524 | if (err.text) |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 525 | PyMem_DEL(err.text); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 526 | return E_EOF; |
| 527 | } |
| 528 | err_input(&err); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 529 | PyErr_Print(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 530 | return err.error; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 531 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 532 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 533 | if (m == NULL) |
| 534 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 535 | d = PyModule_GetDict(m); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 536 | v = run_node(n, filename, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 537 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 538 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 539 | return -1; |
| 540 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 541 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 542 | if (Py_FlushLine()) |
| 543 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 548 | PyRun_SimpleFile(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 549 | FILE *fp; |
| 550 | char *filename; |
| 551 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 552 | PyObject *m, *d, *v; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 553 | char *ext; |
| 554 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 555 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 556 | if (m == NULL) |
| 557 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 558 | d = PyModule_GetDict(m); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 559 | ext = filename + strlen(filename) - 4; |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 560 | if (strcmp(ext, ".pyc") == 0 || strcmp(ext, ".pyo") == 0 |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 561 | #ifdef macintosh |
| 562 | /* On a mac, we also assume a pyc file for types 'PYC ' and 'APPL' */ |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 563 | || getfiletype(filename) == 'PYC ' |
| 564 | || getfiletype(filename) == 'APPL' |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 565 | #endif /* macintosh */ |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 566 | ) { |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 567 | /* Try to run a pyc file. First, re-open in binary */ |
Jack Jansen | e00637b | 1994-12-14 12:58:37 +0000 | [diff] [blame] | 568 | /* Don't close, done in main: fclose(fp); */ |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 569 | if( (fp = fopen(filename, "rb")) == NULL ) { |
| 570 | fprintf(stderr, "python: Can't reopen .pyc file\n"); |
| 571 | return -1; |
| 572 | } |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 573 | /* Turn on optimization if a .pyo file is given */ |
| 574 | if (strcmp(ext, ".pyo") == 0) |
| 575 | Py_OptimizeFlag = 1; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 576 | v = run_pyc_file(fp, filename, d, d); |
| 577 | } else { |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 578 | v = PyRun_File(fp, filename, Py_file_input, d, d); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 579 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 580 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 581 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 582 | return -1; |
| 583 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 584 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 585 | if (Py_FlushLine()) |
| 586 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 587 | return 0; |
| 588 | } |
| 589 | |
| 590 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 591 | PyRun_SimpleString(command) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 592 | char *command; |
| 593 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 594 | PyObject *m, *d, *v; |
| 595 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 596 | if (m == NULL) |
| 597 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 598 | d = PyModule_GetDict(m); |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 599 | v = PyRun_String(command, Py_file_input, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 600 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 601 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 602 | return -1; |
| 603 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 604 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 605 | if (Py_FlushLine()) |
| 606 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | return 0; |
| 608 | } |
| 609 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 610 | static int |
| 611 | parse_syntax_error(err, message, filename, lineno, offset, text) |
| 612 | PyObject* err; |
| 613 | PyObject** message; |
| 614 | char** filename; |
| 615 | int* lineno; |
| 616 | int* offset; |
| 617 | char** text; |
| 618 | { |
| 619 | long hold; |
| 620 | PyObject *v; |
| 621 | |
| 622 | /* old style errors */ |
| 623 | if (PyTuple_Check(err)) |
| 624 | return PyArg_Parse(err, "(O(ziiz))", message, filename, |
| 625 | lineno, offset, text); |
| 626 | |
| 627 | /* new style errors. `err' is an instance */ |
| 628 | |
| 629 | if (! (v = PyObject_GetAttrString(err, "msg"))) |
| 630 | goto finally; |
| 631 | *message = v; |
| 632 | |
| 633 | if (!(v = PyObject_GetAttrString(err, "filename"))) |
| 634 | goto finally; |
| 635 | if (v == Py_None) |
| 636 | *filename = NULL; |
| 637 | else if (! (*filename = PyString_AsString(v))) |
| 638 | goto finally; |
| 639 | |
| 640 | Py_DECREF(v); |
| 641 | if (!(v = PyObject_GetAttrString(err, "lineno"))) |
| 642 | goto finally; |
| 643 | hold = PyInt_AsLong(v); |
| 644 | Py_DECREF(v); |
| 645 | v = NULL; |
| 646 | if (hold < 0 && PyErr_Occurred()) |
| 647 | goto finally; |
| 648 | *lineno = (int)hold; |
| 649 | |
| 650 | if (!(v = PyObject_GetAttrString(err, "offset"))) |
| 651 | goto finally; |
| 652 | hold = PyInt_AsLong(v); |
| 653 | Py_DECREF(v); |
| 654 | v = NULL; |
| 655 | if (hold < 0 && PyErr_Occurred()) |
| 656 | goto finally; |
| 657 | *offset = (int)hold; |
| 658 | |
| 659 | if (!(v = PyObject_GetAttrString(err, "text"))) |
| 660 | goto finally; |
| 661 | if (v == Py_None) |
| 662 | *text = NULL; |
| 663 | else if (! (*text = PyString_AsString(v))) |
| 664 | goto finally; |
| 665 | Py_DECREF(v); |
| 666 | return 1; |
| 667 | |
| 668 | finally: |
| 669 | Py_XDECREF(v); |
| 670 | return 0; |
| 671 | } |
| 672 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 673 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 674 | PyErr_Print() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 675 | { |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 676 | PyErr_PrintEx(1); |
| 677 | } |
| 678 | |
| 679 | void |
| 680 | PyErr_PrintEx(set_sys_last_vars) |
| 681 | int set_sys_last_vars; |
| 682 | { |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 683 | int err = 0; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 684 | PyObject *exception, *v, *tb, *f; |
| 685 | PyErr_Fetch(&exception, &v, &tb); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 686 | PyErr_NormalizeException(&exception, &v, &tb); |
| 687 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 688 | if (exception == NULL) |
Guido van Rossum | 296b475 | 1997-05-23 00:19:20 +0000 | [diff] [blame] | 689 | return; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 690 | |
Barry Warsaw | 36b8f94 | 1997-08-26 18:09:48 +0000 | [diff] [blame] | 691 | if (PyErr_GivenExceptionMatches(exception, PyExc_SystemExit)) { |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 692 | if (Py_FlushLine()) |
| 693 | PyErr_Clear(); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 694 | fflush(stdout); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 695 | if (v == NULL || v == Py_None) |
| 696 | Py_Exit(0); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 697 | if (PyInstance_Check(v)) { |
| 698 | /* we expect the error code to be store in the |
| 699 | `code' attribute |
| 700 | */ |
| 701 | PyObject *code = PyObject_GetAttrString(v, "code"); |
| 702 | if (code) { |
| 703 | Py_DECREF(v); |
| 704 | v = code; |
Guido van Rossum | aa9606f | 1997-10-03 13:53:28 +0000 | [diff] [blame] | 705 | if (v == Py_None) |
| 706 | Py_Exit(0); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 707 | } |
| 708 | /* if we failed to dig out the "code" attribute, |
| 709 | then just let the else clause below print the |
| 710 | error |
| 711 | */ |
| 712 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 713 | if (PyInt_Check(v)) |
| 714 | Py_Exit((int)PyInt_AsLong(v)); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 715 | else { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 716 | /* OK to use real stderr here */ |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 717 | PyObject_Print(v, stderr, Py_PRINT_RAW); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 718 | fprintf(stderr, "\n"); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 719 | Py_Exit(1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 720 | } |
| 721 | } |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 722 | if (set_sys_last_vars) { |
| 723 | PySys_SetObject("last_type", exception); |
| 724 | PySys_SetObject("last_value", v); |
| 725 | PySys_SetObject("last_traceback", tb); |
| 726 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 727 | f = PySys_GetObject("stderr"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 728 | if (f == NULL) |
| 729 | fprintf(stderr, "lost sys.stderr\n"); |
| 730 | else { |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 731 | if (Py_FlushLine()) |
| 732 | PyErr_Clear(); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 733 | fflush(stdout); |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 734 | err = PyTraceBack_Print(tb, f); |
Barry Warsaw | 36b8f94 | 1997-08-26 18:09:48 +0000 | [diff] [blame] | 735 | if (err == 0 && |
| 736 | PyErr_GivenExceptionMatches(exception, PyExc_SyntaxError)) |
| 737 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 738 | PyObject *message; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 739 | char *filename, *text; |
| 740 | int lineno, offset; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 741 | if (!parse_syntax_error(v, &message, &filename, |
| 742 | &lineno, &offset, &text)) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 743 | PyErr_Clear(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 744 | else { |
| 745 | char buf[10]; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 746 | PyFile_WriteString(" File \"", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 747 | if (filename == NULL) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 748 | PyFile_WriteString("<string>", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 749 | else |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 750 | PyFile_WriteString(filename, f); |
| 751 | PyFile_WriteString("\", line ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 752 | sprintf(buf, "%d", lineno); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 753 | PyFile_WriteString(buf, f); |
| 754 | PyFile_WriteString("\n", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 755 | if (text != NULL) { |
Guido van Rossum | 798199d | 1994-09-19 08:08:50 +0000 | [diff] [blame] | 756 | char *nl; |
| 757 | if (offset > 0 && |
Guido van Rossum | 478e718 | 1997-05-06 15:24:59 +0000 | [diff] [blame] | 758 | offset == (int)strlen(text)) |
Guido van Rossum | 798199d | 1994-09-19 08:08:50 +0000 | [diff] [blame] | 759 | offset--; |
| 760 | for (;;) { |
| 761 | nl = strchr(text, '\n'); |
| 762 | if (nl == NULL || |
| 763 | nl-text >= offset) |
| 764 | break; |
| 765 | offset -= (nl+1-text); |
| 766 | text = nl+1; |
| 767 | } |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 768 | while (*text == ' ' || *text == '\t') { |
| 769 | text++; |
| 770 | offset--; |
| 771 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 772 | PyFile_WriteString(" ", f); |
| 773 | PyFile_WriteString(text, f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 774 | if (*text == '\0' || |
| 775 | text[strlen(text)-1] != '\n') |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 776 | PyFile_WriteString("\n", f); |
| 777 | PyFile_WriteString(" ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 778 | offset--; |
| 779 | while (offset > 0) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 780 | PyFile_WriteString(" ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 781 | offset--; |
| 782 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 783 | PyFile_WriteString("^\n", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 784 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 785 | Py_INCREF(message); |
| 786 | Py_DECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 787 | v = message; |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 788 | /* Can't be bothered to check all those |
| 789 | PyFile_WriteString() calls */ |
| 790 | if (PyErr_Occurred()) |
| 791 | err = -1; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 792 | } |
| 793 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 794 | if (err) { |
| 795 | /* Don't do anything else */ |
| 796 | } |
| 797 | else if (PyClass_Check(exception)) { |
Barry Warsaw | 2f5f6a2 | 1997-09-16 21:42:03 +0000 | [diff] [blame] | 798 | PyClassObject* exc = (PyClassObject*)exception; |
| 799 | PyObject* className = exc->cl_name; |
| 800 | PyObject* moduleName = |
| 801 | PyDict_GetItemString(exc->cl_dict, "__module__"); |
| 802 | |
| 803 | if (moduleName == NULL) |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 804 | err = PyFile_WriteString("<unknown>", f); |
Barry Warsaw | 2f5f6a2 | 1997-09-16 21:42:03 +0000 | [diff] [blame] | 805 | else { |
| 806 | char* modstr = PyString_AsString(moduleName); |
| 807 | if (modstr && strcmp(modstr, "exceptions")) |
| 808 | { |
| 809 | err = PyFile_WriteString(modstr, f); |
| 810 | err += PyFile_WriteString(".", f); |
| 811 | } |
| 812 | } |
| 813 | if (err == 0) { |
| 814 | if (className == NULL) |
| 815 | err = PyFile_WriteString("<unknown>", f); |
| 816 | else |
| 817 | err = PyFile_WriteObject(className, f, |
| 818 | Py_PRINT_RAW); |
| 819 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 820 | } |
| 821 | else |
| 822 | err = PyFile_WriteObject(exception, f, Py_PRINT_RAW); |
| 823 | if (err == 0) { |
| 824 | if (v != NULL && v != Py_None) { |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 825 | PyObject *s = PyObject_Str(v); |
| 826 | /* only print colon if the str() of the |
| 827 | object is not the empty string |
| 828 | */ |
Guido van Rossum | d6bf45b | 1997-09-05 19:11:53 +0000 | [diff] [blame] | 829 | if (s == NULL) |
| 830 | err = -1; |
| 831 | else if (!PyString_Check(s) || |
| 832 | PyString_GET_SIZE(s) != 0) |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 833 | err = PyFile_WriteString(": ", f); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 834 | if (err == 0) |
Guido van Rossum | d6bf45b | 1997-09-05 19:11:53 +0000 | [diff] [blame] | 835 | err = PyFile_WriteObject(s, f, Py_PRINT_RAW); |
| 836 | Py_XDECREF(s); |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 837 | } |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 838 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 839 | if (err == 0) |
| 840 | err = PyFile_WriteString("\n", f); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 841 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 842 | Py_XDECREF(exception); |
| 843 | Py_XDECREF(v); |
| 844 | Py_XDECREF(tb); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 845 | /* If an error happened here, don't show it. |
| 846 | XXX This is wrong, but too many callers rely on this behavior. */ |
| 847 | if (err != 0) |
| 848 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 849 | } |
| 850 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 851 | PyObject * |
| 852 | PyRun_String(str, start, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 853 | char *str; |
| 854 | int start; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 855 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 856 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 857 | return run_err_node(PyParser_SimpleParseString(str, start), |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 858 | "<string>", globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 859 | } |
| 860 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 861 | PyObject * |
| 862 | PyRun_File(fp, filename, start, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 863 | FILE *fp; |
| 864 | char *filename; |
| 865 | int start; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 866 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 867 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 868 | return run_err_node(PyParser_SimpleParseFile(fp, filename, start), |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 869 | filename, globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 870 | } |
| 871 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 872 | static PyObject * |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 873 | run_err_node(n, filename, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 874 | node *n; |
| 875 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 876 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 877 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 878 | if (n == NULL) |
| 879 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 880 | return run_node(n, filename, globals, locals); |
| 881 | } |
| 882 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 883 | static PyObject * |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 884 | run_node(n, filename, globals, locals) |
| 885 | node *n; |
| 886 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 887 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 888 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 889 | PyCodeObject *co; |
| 890 | PyObject *v; |
| 891 | co = PyNode_Compile(n, filename); |
| 892 | PyNode_Free(n); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 893 | if (co == NULL) |
| 894 | return NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 895 | v = PyEval_EvalCode(co, globals, locals); |
| 896 | Py_DECREF(co); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 897 | return v; |
| 898 | } |
| 899 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 900 | static PyObject * |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 901 | run_pyc_file(fp, filename, globals, locals) |
| 902 | FILE *fp; |
| 903 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 904 | PyObject *globals, *locals; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 905 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 906 | PyCodeObject *co; |
| 907 | PyObject *v; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 908 | long magic; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 909 | long PyImport_GetMagicNumber(); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 910 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 911 | magic = PyMarshal_ReadLongFromFile(fp); |
| 912 | if (magic != PyImport_GetMagicNumber()) { |
| 913 | PyErr_SetString(PyExc_RuntimeError, |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 914 | "Bad magic number in .pyc file"); |
| 915 | return NULL; |
| 916 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 917 | (void) PyMarshal_ReadLongFromFile(fp); |
| 918 | v = PyMarshal_ReadObjectFromFile(fp); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 919 | fclose(fp); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 920 | if (v == NULL || !PyCode_Check(v)) { |
| 921 | Py_XDECREF(v); |
| 922 | PyErr_SetString(PyExc_RuntimeError, |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 923 | "Bad code object in .pyc file"); |
| 924 | return NULL; |
| 925 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 926 | co = (PyCodeObject *)v; |
| 927 | v = PyEval_EvalCode(co, globals, locals); |
| 928 | Py_DECREF(co); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 929 | return v; |
| 930 | } |
| 931 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 932 | PyObject * |
| 933 | Py_CompileString(str, filename, start) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 934 | char *str; |
| 935 | char *filename; |
| 936 | int start; |
| 937 | { |
| 938 | node *n; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 939 | PyCodeObject *co; |
| 940 | n = PyParser_SimpleParseString(str, start); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 941 | if (n == NULL) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 942 | return NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 943 | co = PyNode_Compile(n, filename); |
| 944 | PyNode_Free(n); |
| 945 | return (PyObject *)co; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 946 | } |
| 947 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 948 | /* Simplified interface to parsefile -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 949 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 950 | node * |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 951 | PyParser_SimpleParseFile(fp, filename, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 952 | FILE *fp; |
| 953 | char *filename; |
| 954 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 955 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 956 | node *n; |
| 957 | perrdetail err; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 958 | n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, start, |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 959 | (char *)0, (char *)0, &err); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 960 | if (n == NULL) |
| 961 | err_input(&err); |
| 962 | return n; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 963 | } |
| 964 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 965 | /* Simplified interface to parsestring -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 966 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 967 | node * |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 968 | PyParser_SimpleParseString(str, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 969 | char *str; |
| 970 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 971 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 972 | node *n; |
| 973 | perrdetail err; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 974 | n = PyParser_ParseString(str, &_PyParser_Grammar, start, &err); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 975 | if (n == NULL) |
| 976 | err_input(&err); |
| 977 | return n; |
| 978 | } |
| 979 | |
| 980 | /* Set the error appropriate to the given input error code (see errcode.h) */ |
| 981 | |
| 982 | static void |
| 983 | err_input(err) |
| 984 | perrdetail *err; |
| 985 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 986 | PyObject *v, *w; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 987 | char *msg = NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 988 | v = Py_BuildValue("(ziiz)", err->filename, |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 989 | err->lineno, err->offset, err->text); |
| 990 | if (err->text != NULL) { |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 991 | PyMem_DEL(err->text); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 992 | err->text = NULL; |
| 993 | } |
| 994 | switch (err->error) { |
| 995 | case E_SYNTAX: |
| 996 | msg = "invalid syntax"; |
| 997 | break; |
| 998 | case E_TOKEN: |
| 999 | msg = "invalid token"; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1000 | break; |
| 1001 | case E_INTR: |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1002 | PyErr_SetNone(PyExc_KeyboardInterrupt); |
Barry Warsaw | c80baa3 | 1999-01-27 16:39:40 +0000 | [diff] [blame] | 1003 | Py_XDECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1004 | return; |
| 1005 | case E_NOMEM: |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1006 | PyErr_NoMemory(); |
Barry Warsaw | c80baa3 | 1999-01-27 16:39:40 +0000 | [diff] [blame] | 1007 | Py_XDECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1008 | return; |
| 1009 | case E_EOF: |
| 1010 | msg = "unexpected EOF while parsing"; |
| 1011 | break; |
Guido van Rossum | 560e8ad | 1998-04-10 19:43:42 +0000 | [diff] [blame] | 1012 | case E_INDENT: |
| 1013 | msg = "inconsistent use of tabs and spaces in indentation"; |
| 1014 | break; |
Jeremy Hylton | 9498806 | 2000-06-20 19:10:44 +0000 | [diff] [blame] | 1015 | case E_OVERFLOW: |
| 1016 | msg = "expression too long"; |
| 1017 | break; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1018 | default: |
| 1019 | fprintf(stderr, "error=%d\n", err->error); |
| 1020 | msg = "unknown parsing error"; |
| 1021 | break; |
| 1022 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1023 | w = Py_BuildValue("(sO)", msg, v); |
| 1024 | Py_XDECREF(v); |
| 1025 | PyErr_SetObject(PyExc_SyntaxError, w); |
| 1026 | Py_XDECREF(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1027 | } |
| 1028 | |
| 1029 | /* Print fatal error message and abort */ |
| 1030 | |
| 1031 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1032 | Py_FatalError(msg) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1033 | char *msg; |
| 1034 | { |
Guido van Rossum | 83dd6c3 | 1994-09-29 09:38:33 +0000 | [diff] [blame] | 1035 | fprintf(stderr, "Fatal Python error: %s\n", msg); |
Guido van Rossum | 8ae87c0 | 1995-01-26 00:40:38 +0000 | [diff] [blame] | 1036 | #ifdef macintosh |
| 1037 | for (;;); |
| 1038 | #endif |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 1039 | #ifdef MS_WIN32 |
Guido van Rossum | 23c9446 | 1997-05-22 20:21:30 +0000 | [diff] [blame] | 1040 | OutputDebugString("Fatal Python error: "); |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 1041 | OutputDebugString(msg); |
| 1042 | OutputDebugString("\n"); |
Guido van Rossum | 0ba3536 | 1998-08-13 13:33:16 +0000 | [diff] [blame] | 1043 | #ifdef _DEBUG |
| 1044 | DebugBreak(); |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 1045 | #endif |
Guido van Rossum | 0ba3536 | 1998-08-13 13:33:16 +0000 | [diff] [blame] | 1046 | #endif /* MS_WIN32 */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1047 | abort(); |
| 1048 | } |
| 1049 | |
| 1050 | /* Clean up and exit */ |
| 1051 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1052 | #ifdef WITH_THREAD |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 1053 | #include "pythread.h" |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1054 | int _PyThread_Started = 0; /* Set by threadmodule.c and maybe others */ |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 1055 | #endif |
| 1056 | |
Guido van Rossum | 2dcfc96 | 1998-10-01 16:01:57 +0000 | [diff] [blame] | 1057 | #define NEXITFUNCS 32 |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1058 | static void (*exitfuncs[NEXITFUNCS])(); |
| 1059 | static int nexitfuncs = 0; |
| 1060 | |
| 1061 | int Py_AtExit(func) |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame^] | 1062 | void (*func)(void); |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1063 | { |
| 1064 | if (nexitfuncs >= NEXITFUNCS) |
| 1065 | return -1; |
| 1066 | exitfuncs[nexitfuncs++] = func; |
| 1067 | return 0; |
| 1068 | } |
| 1069 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1070 | static void |
| 1071 | call_sys_exitfunc() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1072 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1073 | PyObject *exitfunc = PySys_GetObject("exitfunc"); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1074 | |
| 1075 | if (exitfunc) { |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1076 | PyObject *res, *f; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1077 | Py_INCREF(exitfunc); |
| 1078 | PySys_SetObject("exitfunc", (PyObject *)NULL); |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1079 | f = PySys_GetObject("stderr"); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1080 | res = PyEval_CallObject(exitfunc, (PyObject *)NULL); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1081 | if (res == NULL) { |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1082 | if (f) |
| 1083 | PyFile_WriteString("Error in sys.exitfunc:\n", f); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1084 | PyErr_Print(); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1085 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1086 | Py_DECREF(exitfunc); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1087 | } |
| 1088 | |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 1089 | if (Py_FlushLine()) |
| 1090 | PyErr_Clear(); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1091 | } |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1092 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1093 | static void |
| 1094 | call_ll_exitfuncs() |
| 1095 | { |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1096 | while (nexitfuncs > 0) |
| 1097 | (*exitfuncs[--nexitfuncs])(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1098 | |
| 1099 | fflush(stdout); |
| 1100 | fflush(stderr); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1101 | } |
| 1102 | |
| 1103 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1104 | Py_Exit(sts) |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1105 | int sts; |
| 1106 | { |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1107 | Py_Finalize(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1108 | |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 1109 | #ifdef macintosh |
| 1110 | PyMac_Exit(sts); |
| 1111 | #else |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1112 | exit(sts); |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 1113 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1114 | } |
| 1115 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 1116 | static void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1117 | initsigs() |
| 1118 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1119 | #ifdef HAVE_SIGNAL_H |
| 1120 | #ifdef SIGPIPE |
| 1121 | signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1122 | #endif |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1123 | #endif /* HAVE_SIGNAL_H */ |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1124 | PyOS_InitInterrupts(); /* May imply initsignal() */ |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1125 | } |
| 1126 | |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 1127 | #ifdef Py_TRACE_REFS |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1128 | /* Ask a yes/no question */ |
| 1129 | |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1130 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1131 | _Py_AskYesNo(prompt) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1132 | char *prompt; |
| 1133 | { |
| 1134 | char buf[256]; |
| 1135 | |
| 1136 | printf("%s [ny] ", prompt); |
| 1137 | if (fgets(buf, sizeof buf, stdin) == NULL) |
| 1138 | return 0; |
| 1139 | return buf[0] == 'y' || buf[0] == 'Y'; |
| 1140 | } |
| 1141 | #endif |
| 1142 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1143 | #ifdef MPW |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1144 | |
| 1145 | /* Check for file descriptor connected to interactive device. |
| 1146 | Pretend that stdin is always interactive, other files never. */ |
| 1147 | |
| 1148 | int |
| 1149 | isatty(fd) |
| 1150 | int fd; |
| 1151 | { |
| 1152 | return fd == fileno(stdin); |
| 1153 | } |
| 1154 | |
| 1155 | #endif |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 1156 | |
| 1157 | /* |
| 1158 | * The file descriptor fd is considered ``interactive'' if either |
| 1159 | * a) isatty(fd) is TRUE, or |
| 1160 | * b) the -i flag was given, and the filename associated with |
| 1161 | * the descriptor is NULL or "<stdin>" or "???". |
| 1162 | */ |
| 1163 | int |
| 1164 | Py_FdIsInteractive(fp, filename) |
| 1165 | FILE *fp; |
| 1166 | char *filename; |
| 1167 | { |
| 1168 | if (isatty((int)fileno(fp))) |
| 1169 | return 1; |
| 1170 | if (!Py_InteractiveFlag) |
| 1171 | return 0; |
| 1172 | return (filename == NULL) || |
| 1173 | (strcmp(filename, "<stdin>") == 0) || |
| 1174 | (strcmp(filename, "???") == 0); |
| 1175 | } |