Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 32 | /* Module definition and import implementation */ |
| 33 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 34 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 35 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 36 | #include "node.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 37 | #include "token.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 38 | #include "errcode.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 39 | #include "marshal.h" |
| 40 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 41 | #include "eval.h" |
Guido van Rossum | d8bac6d | 1992-02-26 15:19:13 +0000 | [diff] [blame] | 42 | #include "osdefs.h" |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 43 | #include "importdl.h" |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 44 | #ifdef macintosh |
| 45 | #include "macglue.h" |
| 46 | #endif |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 47 | |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 48 | #ifdef HAVE_UNISTD_H |
| 49 | #include <unistd.h> |
| 50 | #endif |
| 51 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 52 | /* We expect that stat exists on most systems. |
| 53 | It's confirmed on Unix, Mac and Windows. |
| 54 | If you don't have it, add #define DONT_HAVE_STAT to your config.h. */ |
| 55 | #ifndef DONT_HAVE_STAT |
| 56 | #define HAVE_STAT |
| 57 | |
| 58 | #include <sys/types.h> |
| 59 | #include <sys/stat.h> |
| 60 | |
| 61 | #ifndef S_ISDIR |
| 62 | #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) |
| 63 | #endif |
| 64 | |
| 65 | #endif |
| 66 | |
| 67 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 68 | extern long PyOS_GetLastModificationTime(); /* In getmtime.c */ |
Guido van Rossum | 21d335e | 1993-10-15 13:01:11 +0000 | [diff] [blame] | 69 | |
Guido van Rossum | 6c84969 | 1994-09-26 15:47:17 +0000 | [diff] [blame] | 70 | /* Magic word to reject .pyc files generated by other Python versions */ |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 71 | /* Change for each incompatible change */ |
| 72 | /* The value of CR and LF is incorporated so if you ever read or write |
| 73 | a .pyc file in text mode the magic number will be wrong; also, the |
| 74 | Apple MPW compiler swaps their values, botching string constants */ |
| 75 | /* XXX Perhaps the magic number should be frozen and a version field |
| 76 | added to the .pyc file header? */ |
Guido van Rossum | dd5db43 | 1997-01-17 21:06:11 +0000 | [diff] [blame] | 77 | /* New way to come up with the magic number: (YEAR-1995), MONTH, DAY */ |
Guido van Rossum | 99d1825 | 1997-01-24 03:44:53 +0000 | [diff] [blame] | 78 | #define MAGIC (20121 | ((long)'\r'<<16) | ((long)'\n'<<24)) |
Guido van Rossum | 3ddee71 | 1991-12-16 13:06:34 +0000 | [diff] [blame] | 79 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 80 | /* See _PyImport_FixupExtension() below */ |
| 81 | static PyObject *extensions = NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 82 | |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame^] | 83 | /* This table is defined in config.c: */ |
| 84 | extern struct _inittab _PyImport_Inittab[]; |
| 85 | |
| 86 | struct _inittab *PyImport_Inittab = _PyImport_Inittab; |
Guido van Rossum | 66f1fa8 | 1991-04-03 19:03:52 +0000 | [diff] [blame] | 87 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 88 | /* Initialize things */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 89 | |
| 90 | void |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 91 | _PyImport_Init() |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 92 | { |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 93 | if (Py_OptimizeFlag) { |
| 94 | /* Replace ".pyc" with ".pyo" in import_filetab */ |
| 95 | struct filedescr *p; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 96 | for (p = _PyImport_Filetab; p->suffix != NULL; p++) { |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 97 | if (strcmp(p->suffix, ".pyc") == 0) |
| 98 | p->suffix = ".pyo"; |
| 99 | } |
| 100 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 101 | } |
| 102 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 103 | void |
| 104 | _PyImport_Fini() |
| 105 | { |
| 106 | Py_XDECREF(extensions); |
| 107 | extensions = NULL; |
| 108 | } |
| 109 | |
| 110 | |
| 111 | /* Helper for sys */ |
| 112 | |
| 113 | PyObject * |
| 114 | PyImport_GetModuleDict() |
| 115 | { |
| 116 | PyInterpreterState *interp = PyThreadState_Get()->interp; |
| 117 | if (interp->modules == NULL) |
| 118 | Py_FatalError("PyImport_GetModuleDict: no module dictionary!"); |
| 119 | return interp->modules; |
| 120 | } |
| 121 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 122 | |
Guido van Rossum | 085d269 | 1997-08-05 02:20:51 +0000 | [diff] [blame] | 123 | /* Helper for PyImport_Cleanup */ |
| 124 | |
| 125 | static void |
| 126 | clear_carefully(d) |
| 127 | PyObject *d; |
| 128 | { |
| 129 | /* To make the execution order of destructors for global |
| 130 | objects a bit more predictable, we first zap all objects |
| 131 | whose name starts with a single underscore, before we clear |
| 132 | the entire dictionary. We zap them by replacing them with |
| 133 | None, rather than deleting them from the dictionary, to |
| 134 | avoid rehashing the dictionary (to some extent). */ |
| 135 | |
| 136 | int pos; |
| 137 | PyObject *key, *value; |
| 138 | |
| 139 | pos = 0; |
| 140 | while (PyDict_Next(d, &pos, &key, &value)) { |
| 141 | if (value != Py_None && PyString_Check(key)) { |
| 142 | char *s = PyString_AsString(key); |
| 143 | if (s[0] == '_' && s[1] != '_') |
| 144 | PyDict_SetItem(d, key, Py_None); |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | PyDict_Clear(d); |
| 149 | } |
| 150 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 151 | /* Un-initialize things, as good as we can */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 152 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 153 | void |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 154 | PyImport_Cleanup() |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 155 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 156 | PyInterpreterState *interp = PyThreadState_Get()->interp; |
| 157 | PyObject *tmp = interp->modules; |
| 158 | if (tmp != NULL) { |
| 159 | int pos; |
| 160 | PyObject *key, *value; |
| 161 | interp->modules = NULL; |
| 162 | pos = 0; |
| 163 | while (PyDict_Next(tmp, &pos, &key, &value)) { |
| 164 | if (PyModule_Check(value)) { |
| 165 | PyObject *d = PyModule_GetDict(value); |
Guido van Rossum | 085d269 | 1997-08-05 02:20:51 +0000 | [diff] [blame] | 166 | clear_carefully(d); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 167 | } |
| 168 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 169 | PyDict_Clear(tmp); |
| 170 | Py_DECREF(tmp); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 171 | } |
Guido van Rossum | 8d15b5d | 1990-10-26 14:58:58 +0000 | [diff] [blame] | 172 | } |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 173 | |
| 174 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 175 | /* Helper for pythonrun.c -- return magic number */ |
| 176 | |
| 177 | long |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 178 | PyImport_GetMagicNumber() |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 179 | { |
| 180 | return MAGIC; |
| 181 | } |
| 182 | |
| 183 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 184 | /* Magic for extension modules (built-in as well as dynamically |
| 185 | loaded). To prevent initializing an extension module more than |
| 186 | once, we keep a static dictionary 'extensions' keyed by module name |
| 187 | (for built-in modules) or by filename (for dynamically loaded |
| 188 | modules), containing these modules. A copy od the module's |
| 189 | dictionary is stored by calling _PyImport_FixupExtension() |
| 190 | immediately after the module initialization function succeeds. A |
| 191 | copy can be retrieved from there by calling |
| 192 | _PyImport_FindExtension(). */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 193 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 194 | PyObject * |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 195 | _PyImport_FixupExtension(name, filename) |
| 196 | char *name; |
| 197 | char *filename; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 198 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 199 | PyObject *modules, *mod, *dict, *copy; |
| 200 | if (extensions == NULL) { |
| 201 | extensions = PyDict_New(); |
| 202 | if (extensions == NULL) |
| 203 | return NULL; |
| 204 | } |
| 205 | modules = PyImport_GetModuleDict(); |
| 206 | mod = PyDict_GetItemString(modules, name); |
| 207 | if (mod == NULL || !PyModule_Check(mod)) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 208 | PyErr_Format(PyExc_SystemError, |
| 209 | "_PyImport_FixupExtension: module %.200s not loaded", name); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 210 | return NULL; |
| 211 | } |
| 212 | dict = PyModule_GetDict(mod); |
| 213 | if (dict == NULL) |
| 214 | return NULL; |
| 215 | copy = PyObject_CallMethod(dict, "copy", ""); |
| 216 | if (copy == NULL) |
| 217 | return NULL; |
| 218 | PyDict_SetItemString(extensions, filename, copy); |
| 219 | Py_DECREF(copy); |
| 220 | return copy; |
| 221 | } |
| 222 | |
| 223 | PyObject * |
| 224 | _PyImport_FindExtension(name, filename) |
| 225 | char *name; |
| 226 | char *filename; |
| 227 | { |
| 228 | PyObject *dict, *mod, *mdict, *result; |
| 229 | if (extensions == NULL) |
| 230 | return NULL; |
| 231 | dict = PyDict_GetItemString(extensions, filename); |
| 232 | if (dict == NULL) |
| 233 | return NULL; |
| 234 | mod = PyImport_AddModule(name); |
| 235 | if (mod == NULL) |
| 236 | return NULL; |
| 237 | mdict = PyModule_GetDict(mod); |
| 238 | if (mdict == NULL) |
| 239 | return NULL; |
| 240 | result = PyObject_CallMethod(mdict, "update", "O", dict); |
| 241 | if (result == NULL) |
| 242 | return NULL; |
| 243 | Py_DECREF(result); |
| 244 | if (Py_VerboseFlag) |
| 245 | fprintf(stderr, "import %s # previously loaded (%s)\n", |
| 246 | name, filename); |
| 247 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | |
| 251 | /* Get the module object corresponding to a module name. |
| 252 | First check the modules dictionary if there's one there, |
| 253 | if not, create a new one and insert in in the modules dictionary. |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 254 | Because the former action is most common, THIS DOES NOT RETURN A |
| 255 | 'NEW' REFERENCE! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 256 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 257 | PyObject * |
| 258 | PyImport_AddModule(name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 259 | char *name; |
| 260 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 261 | PyObject *modules = PyImport_GetModuleDict(); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 262 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 263 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 264 | if ((m = PyDict_GetItemString(modules, name)) != NULL && |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 265 | PyModule_Check(m)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 266 | return m; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 267 | m = PyModule_New(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 268 | if (m == NULL) |
| 269 | return NULL; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 270 | if (PyDict_SetItemString(modules, name, m) != 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 271 | Py_DECREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 272 | return NULL; |
| 273 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 274 | Py_DECREF(m); /* Yes, it still exists, in modules! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 275 | |
| 276 | return m; |
| 277 | } |
| 278 | |
| 279 | |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 280 | /* Execute a code object in a module and return the module object |
| 281 | WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 282 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 283 | PyObject * |
| 284 | PyImport_ExecCodeModule(name, co) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 285 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 286 | PyObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 287 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 288 | PyObject *modules = PyImport_GetModuleDict(); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 289 | PyObject *m, *d, *v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 290 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 291 | m = PyImport_AddModule(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 292 | if (m == NULL) |
| 293 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 294 | d = PyModule_GetDict(m); |
| 295 | if (PyDict_GetItemString(d, "__builtins__") == NULL) { |
| 296 | if (PyDict_SetItemString(d, "__builtins__", |
| 297 | PyEval_GetBuiltins()) != 0) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 298 | return NULL; |
| 299 | } |
Guido van Rossum | 9c9a07c | 1996-05-16 20:43:40 +0000 | [diff] [blame] | 300 | /* Remember the filename as the __file__ attribute */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 301 | if (PyDict_SetItemString(d, "__file__", |
| 302 | ((PyCodeObject *)co)->co_filename) != 0) |
| 303 | PyErr_Clear(); /* Not important enough to report */ |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 304 | v = PyEval_EvalCode((PyCodeObject *)co, d, d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 305 | if (v == NULL) |
| 306 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 307 | Py_DECREF(v); |
Guido van Rossum | b65e85c | 1997-07-10 18:00:45 +0000 | [diff] [blame] | 308 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 309 | if ((m = PyDict_GetItemString(modules, name)) == NULL) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 310 | PyErr_Format(PyExc_ImportError, |
| 311 | "Loaded module %.200s not found in sys.modules", |
| 312 | name); |
Guido van Rossum | b65e85c | 1997-07-10 18:00:45 +0000 | [diff] [blame] | 313 | return NULL; |
| 314 | } |
| 315 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 316 | Py_INCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 317 | |
| 318 | return m; |
| 319 | } |
| 320 | |
| 321 | |
| 322 | /* Given a pathname for a Python source file, fill a buffer with the |
| 323 | pathname for the corresponding compiled file. Return the pathname |
| 324 | for the compiled file, or NULL if there's no space in the buffer. |
| 325 | Doesn't set an exception. */ |
| 326 | |
| 327 | static char * |
| 328 | make_compiled_pathname(pathname, buf, buflen) |
| 329 | char *pathname; |
| 330 | char *buf; |
| 331 | int buflen; |
| 332 | { |
| 333 | int len; |
| 334 | |
| 335 | len = strlen(pathname); |
| 336 | if (len+2 > buflen) |
| 337 | return NULL; |
| 338 | strcpy(buf, pathname); |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 339 | strcpy(buf+len, Py_OptimizeFlag ? "o" : "c"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 340 | |
| 341 | return buf; |
| 342 | } |
| 343 | |
| 344 | |
| 345 | /* Given a pathname for a Python source file, its time of last |
| 346 | modification, and a pathname for a compiled file, check whether the |
| 347 | compiled file represents the same version of the source. If so, |
| 348 | return a FILE pointer for the compiled file, positioned just after |
| 349 | the header; if not, return NULL. |
| 350 | Doesn't set an exception. */ |
| 351 | |
| 352 | static FILE * |
| 353 | check_compiled_module(pathname, mtime, cpathname) |
| 354 | char *pathname; |
| 355 | long mtime; |
| 356 | char *cpathname; |
| 357 | { |
| 358 | FILE *fp; |
| 359 | long magic; |
| 360 | long pyc_mtime; |
| 361 | |
| 362 | fp = fopen(cpathname, "rb"); |
| 363 | if (fp == NULL) |
| 364 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 365 | magic = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 366 | if (magic != MAGIC) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 367 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 368 | fprintf(stderr, "# %s has bad magic\n", cpathname); |
| 369 | fclose(fp); |
| 370 | return NULL; |
| 371 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 372 | pyc_mtime = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 373 | if (pyc_mtime != mtime) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 374 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 375 | fprintf(stderr, "# %s has bad mtime\n", cpathname); |
| 376 | fclose(fp); |
| 377 | return NULL; |
| 378 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 379 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 380 | fprintf(stderr, "# %s matches %s\n", cpathname, pathname); |
| 381 | return fp; |
| 382 | } |
| 383 | |
| 384 | |
| 385 | /* Read a code object from a file and check it for validity */ |
| 386 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 387 | static PyCodeObject * |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 388 | read_compiled_module(cpathname, fp) |
| 389 | char *cpathname; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 390 | FILE *fp; |
| 391 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 392 | PyObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 393 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 394 | co = PyMarshal_ReadObjectFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 395 | /* Ugly: rd_object() may return NULL with or without error */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 396 | if (co == NULL || !PyCode_Check(co)) { |
| 397 | if (!PyErr_Occurred()) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 398 | PyErr_Format(PyExc_ImportError, |
| 399 | "Non-code object in %.200s", cpathname); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 400 | Py_XDECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 401 | return NULL; |
| 402 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 403 | return (PyCodeObject *)co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | |
| 407 | /* Load a module from a compiled file, execute it, and return its |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 408 | module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 409 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 410 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 411 | load_compiled_module(name, cpathname, fp) |
| 412 | char *name; |
| 413 | char *cpathname; |
| 414 | FILE *fp; |
| 415 | { |
| 416 | long magic; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 417 | PyCodeObject *co; |
| 418 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 419 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 420 | magic = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 421 | if (magic != MAGIC) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 422 | PyErr_Format(PyExc_ImportError, |
| 423 | "Bad magic number in %.200s", cpathname); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 424 | return NULL; |
| 425 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 426 | (void) PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 427 | co = read_compiled_module(cpathname, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 428 | if (co == NULL) |
| 429 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 430 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 431 | fprintf(stderr, "import %s # precompiled from %s\n", |
| 432 | name, cpathname); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 433 | m = PyImport_ExecCodeModule(name, (PyObject *)co); |
| 434 | Py_DECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 435 | |
| 436 | return m; |
| 437 | } |
| 438 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 439 | /* Parse a source file and return the corresponding code object */ |
| 440 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 441 | static PyCodeObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 442 | parse_source_module(pathname, fp) |
| 443 | char *pathname; |
| 444 | FILE *fp; |
| 445 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 446 | PyCodeObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 447 | node *n; |
| 448 | |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 449 | n = PyParser_SimpleParseFile(fp, pathname, Py_file_input); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 450 | if (n == NULL) |
| 451 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 452 | co = PyNode_Compile(n, pathname); |
| 453 | PyNode_Free(n); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 454 | |
| 455 | return co; |
| 456 | } |
| 457 | |
| 458 | |
| 459 | /* Write a compiled module to a file, placing the time of last |
| 460 | modification of its source into the header. |
| 461 | Errors are ignored, if a write error occurs an attempt is made to |
| 462 | remove the file. */ |
| 463 | |
| 464 | static void |
| 465 | write_compiled_module(co, cpathname, mtime) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 466 | PyCodeObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 467 | char *cpathname; |
| 468 | long mtime; |
| 469 | { |
| 470 | FILE *fp; |
| 471 | |
| 472 | fp = fopen(cpathname, "wb"); |
| 473 | if (fp == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 474 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 475 | fprintf(stderr, |
| 476 | "# can't create %s\n", cpathname); |
| 477 | return; |
| 478 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 479 | PyMarshal_WriteLongToFile(MAGIC, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 480 | /* First write a 0 for mtime */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 481 | PyMarshal_WriteLongToFile(0L, fp); |
| 482 | PyMarshal_WriteObjectToFile((PyObject *)co, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 483 | if (ferror(fp)) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 484 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 485 | fprintf(stderr, "# can't write %s\n", cpathname); |
| 486 | /* Don't keep partial file */ |
| 487 | fclose(fp); |
| 488 | (void) unlink(cpathname); |
| 489 | return; |
| 490 | } |
| 491 | /* Now write the true mtime */ |
| 492 | fseek(fp, 4L, 0); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 493 | PyMarshal_WriteLongToFile(mtime, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 494 | fflush(fp); |
| 495 | fclose(fp); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 496 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 497 | fprintf(stderr, "# wrote %s\n", cpathname); |
| 498 | #ifdef macintosh |
Guido van Rossum | be1a6e2 | 1996-02-21 15:29:20 +0000 | [diff] [blame] | 499 | setfiletype(cpathname, 'Pyth', 'PYC '); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 500 | #endif |
| 501 | } |
| 502 | |
| 503 | |
| 504 | /* Load a source module from a given file and return its module |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 505 | object WITH INCREMENTED REFERENCE COUNT. If there's a matching |
| 506 | byte-compiled file, use that instead. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 507 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 508 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 509 | load_source_module(name, pathname, fp) |
| 510 | char *name; |
| 511 | char *pathname; |
| 512 | FILE *fp; |
| 513 | { |
| 514 | long mtime; |
| 515 | FILE *fpc; |
| 516 | char buf[MAXPATHLEN+1]; |
| 517 | char *cpathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 518 | PyCodeObject *co; |
| 519 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 520 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 521 | mtime = PyOS_GetLastModificationTime(pathname, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 522 | cpathname = make_compiled_pathname(pathname, buf, MAXPATHLEN+1); |
| 523 | if (cpathname != NULL && |
| 524 | (fpc = check_compiled_module(pathname, mtime, cpathname))) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 525 | co = read_compiled_module(cpathname, fpc); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 526 | fclose(fpc); |
| 527 | if (co == NULL) |
| 528 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 529 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 530 | fprintf(stderr, "import %s # precompiled from %s\n", |
| 531 | name, cpathname); |
| 532 | } |
| 533 | else { |
| 534 | co = parse_source_module(pathname, fp); |
| 535 | if (co == NULL) |
| 536 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 537 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 538 | fprintf(stderr, "import %s # from %s\n", |
| 539 | name, pathname); |
| 540 | write_compiled_module(co, cpathname, mtime); |
| 541 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 542 | m = PyImport_ExecCodeModule(name, (PyObject *)co); |
| 543 | Py_DECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 544 | |
| 545 | return m; |
| 546 | } |
| 547 | |
| 548 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 549 | /* Forward */ |
| 550 | static PyObject *load_module Py_PROTO((char *, FILE *, char *, int)); |
| 551 | static struct filedescr *find_module Py_PROTO((char *, PyObject *, |
| 552 | char *, int, FILE **)); |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 553 | static struct _frozen *find_frozen Py_PROTO((char *name)); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 554 | |
| 555 | /* Load a package and return its module object WITH INCREMENTED |
| 556 | REFERENCE COUNT */ |
| 557 | |
| 558 | static PyObject * |
| 559 | load_package(name, pathname) |
| 560 | char *name; |
| 561 | char *pathname; |
| 562 | { |
| 563 | PyObject *m, *d, *file, *path; |
| 564 | int err; |
| 565 | char buf[MAXPATHLEN+1]; |
| 566 | FILE *fp = NULL; |
| 567 | struct filedescr *fdp; |
| 568 | |
| 569 | m = PyImport_AddModule(name); |
| 570 | if (m == NULL) |
| 571 | return NULL; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 572 | if (Py_VerboseFlag) |
| 573 | fprintf(stderr, "import %s # directory %s\n", |
| 574 | name, pathname); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 575 | d = PyModule_GetDict(m); |
| 576 | file = PyString_FromString(pathname); |
| 577 | if (file == NULL) |
| 578 | return NULL; |
| 579 | path = Py_BuildValue("[O]", file); |
| 580 | if (path == NULL) { |
| 581 | Py_DECREF(file); |
| 582 | return NULL; |
| 583 | } |
| 584 | err = PyDict_SetItemString(d, "__file__", file); |
| 585 | if (err == 0) |
| 586 | err = PyDict_SetItemString(d, "__path__", path); |
| 587 | if (err != 0) { |
| 588 | m = NULL; |
| 589 | goto cleanup; |
| 590 | } |
| 591 | buf[0] = '\0'; |
| 592 | fdp = find_module("__init__", path, buf, sizeof(buf), &fp); |
| 593 | if (fdp == NULL) { |
| 594 | if (PyErr_ExceptionMatches(PyExc_ImportError)) { |
| 595 | PyErr_Clear(); |
| 596 | } |
| 597 | else |
| 598 | m = NULL; |
| 599 | goto cleanup; |
| 600 | } |
| 601 | m = load_module(name, fp, buf, fdp->type); |
| 602 | if (fp != NULL) |
| 603 | fclose(fp); |
| 604 | cleanup: |
| 605 | Py_XINCREF(m); |
| 606 | Py_XDECREF(path); |
| 607 | Py_XDECREF(file); |
| 608 | return m; |
| 609 | } |
| 610 | |
| 611 | |
| 612 | /* Helper to test for built-in module */ |
| 613 | |
| 614 | static int |
| 615 | is_builtin(name) |
| 616 | char *name; |
| 617 | { |
| 618 | int i; |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame^] | 619 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
| 620 | if (strcmp(name, PyImport_Inittab[i].name) == 0) { |
| 621 | if (PyImport_Inittab[i].initfunc == NULL) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 622 | return -1; |
| 623 | else |
| 624 | return 1; |
| 625 | } |
| 626 | } |
| 627 | return 0; |
| 628 | } |
| 629 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 630 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 631 | /* Search the path (default sys.path) for a module. Return the |
| 632 | corresponding filedescr struct, and (via return arguments) the |
| 633 | pathname and an open file. Return NULL if the module is not found. */ |
| 634 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 635 | #ifdef MS_COREDLL |
| 636 | extern FILE *PyWin_FindRegisteredModule(); |
| 637 | #endif |
| 638 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 639 | static struct filedescr * |
| 640 | find_module(name, path, buf, buflen, p_fp) |
| 641 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 642 | PyObject *path; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 643 | /* Output parameters: */ |
| 644 | char *buf; |
| 645 | int buflen; |
| 646 | FILE **p_fp; |
| 647 | { |
| 648 | int i, npath, len, namelen; |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 649 | struct filedescr *fdp = NULL; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 650 | FILE *fp = NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 651 | struct stat statbuf; |
| 652 | |
| 653 | if (path == NULL) { |
| 654 | if (is_builtin(name)) { |
| 655 | static struct filedescr fd = {"", "", C_BUILTIN}; |
| 656 | return &fd; |
| 657 | } |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 658 | if (find_frozen(name) != NULL) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 659 | static struct filedescr fd = {"", "", PY_FROZEN}; |
| 660 | return &fd; |
| 661 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 662 | |
Guido van Rossum | ac27910 | 1996-08-22 23:10:58 +0000 | [diff] [blame] | 663 | #ifdef MS_COREDLL |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 664 | fp = PyWin_FindRegisteredModule(name, &fdp, buf, buflen); |
| 665 | if (fp != NULL) { |
| 666 | *p_fp = fp; |
| 667 | return fdp; |
| 668 | } |
Guido van Rossum | a5a3db7 | 1996-04-09 02:39:59 +0000 | [diff] [blame] | 669 | #endif |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 670 | } |
Guido van Rossum | a5a3db7 | 1996-04-09 02:39:59 +0000 | [diff] [blame] | 671 | |
| 672 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 673 | if (path == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 674 | path = PySys_GetObject("path"); |
| 675 | if (path == NULL || !PyList_Check(path)) { |
| 676 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 677 | "sys.path must be a list of directory names"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 678 | return NULL; |
| 679 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 680 | npath = PyList_Size(path); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 681 | namelen = strlen(name); |
| 682 | for (i = 0; i < npath; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 683 | PyObject *v = PyList_GetItem(path, i); |
| 684 | if (!PyString_Check(v)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 685 | continue; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 686 | len = PyString_Size(v); |
Guido van Rossum | ef3d02e | 1997-07-21 14:54:36 +0000 | [diff] [blame] | 687 | if (len + 2 + namelen + MAXSUFFIXSIZE >= buflen) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 688 | continue; /* Too long */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 689 | strcpy(buf, PyString_AsString(v)); |
Guido van Rossum | 6bf62da | 1997-04-11 20:37:35 +0000 | [diff] [blame] | 690 | if ((int)strlen(buf) != len) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 691 | continue; /* v contains '\0' */ |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 692 | #ifdef macintosh |
Guido van Rossum | 741689d | 1997-08-12 14:53:39 +0000 | [diff] [blame] | 693 | #ifdef INTERN_STRINGS |
| 694 | /* |
| 695 | ** Speedup: each sys.path item is interned, and |
| 696 | ** FindResourceModule remembers which items refer to |
| 697 | ** folders (so we don't have to bother trying to look |
| 698 | ** into them for resources). |
| 699 | */ |
| 700 | PyString_InternInPlace(&PyList_GET_ITEM(path, i)); |
| 701 | v = PyList_GET_ITEM(path, i); |
| 702 | #endif |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 703 | if (PyMac_FindResourceModule((PyStringObject *)v, name, buf)) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 704 | static struct filedescr resfiledescr = |
| 705 | {"", "", PY_RESOURCE}; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 706 | |
| 707 | return &resfiledescr; |
| 708 | } |
| 709 | #endif |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 710 | if (len > 0 && buf[len-1] != SEP |
| 711 | #ifdef ALTSEP |
| 712 | && buf[len-1] != ALTSEP |
| 713 | #endif |
| 714 | ) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 715 | buf[len++] = SEP; |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 716 | #ifdef IMPORT_8x3_NAMES |
| 717 | /* see if we are searching in directory dos_8x3 */ |
| 718 | if (len > 7 && !strncmp(buf + len - 8, "dos_8x3", 7)){ |
| 719 | int j; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 720 | char ch; /* limit name to 8 lower-case characters */ |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 721 | for (j = 0; (ch = name[j]) && j < 8; j++) |
| 722 | if (isupper(ch)) |
| 723 | buf[len++] = tolower(ch); |
| 724 | else |
| 725 | buf[len++] = ch; |
| 726 | } |
Guido van Rossum | 0e41c8c | 1996-06-20 14:18:34 +0000 | [diff] [blame] | 727 | else /* Not in dos_8x3, use the full name */ |
Guido van Rossum | 6f489d9 | 1996-06-28 20:15:15 +0000 | [diff] [blame] | 728 | #endif |
Guido van Rossum | 0e41c8c | 1996-06-20 14:18:34 +0000 | [diff] [blame] | 729 | { |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 730 | strcpy(buf+len, name); |
| 731 | len += namelen; |
| 732 | } |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 733 | #ifdef HAVE_STAT |
| 734 | if (stat(buf, &statbuf) == 0) { |
| 735 | static struct filedescr fd = {"", "", PKG_DIRECTORY}; |
| 736 | if (S_ISDIR(statbuf.st_mode)) |
| 737 | return &fd; |
| 738 | } |
| 739 | #else |
| 740 | /* XXX How are you going to test for directories? */ |
| 741 | #endif |
Guido van Rossum | 9a61dc9 | 1997-10-08 15:25:08 +0000 | [diff] [blame] | 742 | #ifdef macintosh |
| 743 | fdp = PyMac_FindModuleExtension(buf, &len, name); |
| 744 | if (fdp) |
| 745 | fp = fopen(buf, fdp->mode); |
| 746 | #else |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 747 | for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 748 | strcpy(buf+len, fdp->suffix); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 749 | if (Py_VerboseFlag > 1) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 750 | fprintf(stderr, "# trying %s\n", buf); |
| 751 | fp = fopen(buf, fdp->mode); |
| 752 | if (fp != NULL) |
| 753 | break; |
| 754 | } |
Guido van Rossum | 741689d | 1997-08-12 14:53:39 +0000 | [diff] [blame] | 755 | #endif /* !macintosh */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 756 | if (fp != NULL) |
| 757 | break; |
| 758 | } |
| 759 | if (fp == NULL) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 760 | PyErr_Format(PyExc_ImportError, |
| 761 | "No module named %.200s", name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 762 | return NULL; |
| 763 | } |
| 764 | |
| 765 | *p_fp = fp; |
| 766 | return fdp; |
| 767 | } |
| 768 | |
| 769 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 770 | static int init_builtin Py_PROTO((char *)); /* Forward */ |
| 771 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 772 | /* Load an external module using the default search path and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 773 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 774 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 775 | static PyObject * |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 776 | load_module(name, fp, buf, type) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 777 | char *name; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 778 | FILE *fp; |
| 779 | char *buf; |
| 780 | int type; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 781 | { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 782 | PyObject *modules; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 783 | PyObject *m; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 784 | int err; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 785 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 786 | /* First check that there's an open file (if we need one) */ |
| 787 | switch (type) { |
| 788 | case PY_SOURCE: |
| 789 | case PY_COMPILED: |
| 790 | if (fp == NULL) { |
| 791 | PyErr_Format(PyExc_ValueError, |
| 792 | "file object required for import (type code %d)", |
| 793 | type); |
| 794 | return NULL; |
| 795 | } |
| 796 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 797 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 798 | switch (type) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 799 | |
| 800 | case PY_SOURCE: |
| 801 | m = load_source_module(name, buf, fp); |
| 802 | break; |
| 803 | |
| 804 | case PY_COMPILED: |
| 805 | m = load_compiled_module(name, buf, fp); |
| 806 | break; |
| 807 | |
| 808 | case C_EXTENSION: |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 809 | m = _PyImport_LoadDynamicModule(name, buf, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 810 | break; |
| 811 | |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 812 | #ifdef macintosh |
| 813 | case PY_RESOURCE: |
| 814 | m = PyMac_LoadResourceModule(name, buf); |
| 815 | break; |
| 816 | #endif |
| 817 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 818 | case PKG_DIRECTORY: |
| 819 | m = load_package(name, buf); |
| 820 | break; |
| 821 | |
| 822 | case C_BUILTIN: |
| 823 | case PY_FROZEN: |
| 824 | if (type == C_BUILTIN) |
| 825 | err = init_builtin(name); |
| 826 | else |
| 827 | err = PyImport_ImportFrozenModule(name); |
| 828 | if (err < 0) |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 829 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 830 | if (err == 0) { |
| 831 | PyErr_Format(PyExc_ImportError, |
| 832 | "Purported %s module %.200s not found", |
| 833 | type == C_BUILTIN ? |
| 834 | "builtin" : "frozen", |
| 835 | name); |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 836 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 837 | } |
| 838 | modules = PyImport_GetModuleDict(); |
| 839 | m = PyDict_GetItemString(modules, name); |
| 840 | if (m == NULL) { |
| 841 | PyErr_Format( |
| 842 | PyExc_ImportError, |
| 843 | "%s module %.200s not properly initialized", |
| 844 | type == C_BUILTIN ? |
| 845 | "builtin" : "frozen", |
| 846 | name); |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 847 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 848 | } |
| 849 | Py_INCREF(m); |
| 850 | break; |
| 851 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 852 | default: |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 853 | PyErr_Format(PyExc_ImportError, |
| 854 | "Don't know how to import %.200s (type code %d)", |
| 855 | name, type); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 856 | m = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 857 | |
| 858 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 859 | |
| 860 | return m; |
| 861 | } |
| 862 | |
| 863 | |
| 864 | /* Initialize a built-in module. |
| 865 | Return 1 for succes, 0 if the module is not found, and -1 with |
| 866 | an exception set if the initialization failed. */ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 867 | |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 868 | static int |
| 869 | init_builtin(name) |
| 870 | char *name; |
| 871 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 872 | struct _inittab *p; |
| 873 | PyObject *mod; |
| 874 | |
| 875 | if ((mod = _PyImport_FindExtension(name, name)) != NULL) |
| 876 | return 1; |
| 877 | |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame^] | 878 | for (p = PyImport_Inittab; p->name != NULL; p++) { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 879 | if (strcmp(name, p->name) == 0) { |
| 880 | if (p->initfunc == NULL) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 881 | PyErr_Format(PyExc_ImportError, |
| 882 | "Cannot re-init internal module %.200s", |
| 883 | name); |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 884 | return -1; |
| 885 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 886 | if (Py_VerboseFlag) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 887 | fprintf(stderr, "import %s # builtin\n", name); |
| 888 | (*p->initfunc)(); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 889 | if (PyErr_Occurred()) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 890 | return -1; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 891 | if (_PyImport_FixupExtension(name, name) == NULL) |
| 892 | return -1; |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 893 | return 1; |
| 894 | } |
| 895 | } |
| 896 | return 0; |
| 897 | } |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 898 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 899 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 900 | /* Frozen modules */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 901 | |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 902 | static struct _frozen * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 903 | find_frozen(name) |
| 904 | char *name; |
| 905 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 906 | struct _frozen *p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 907 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 908 | for (p = PyImport_FrozenModules; ; p++) { |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 909 | if (p->name == NULL) |
| 910 | return NULL; |
| 911 | if (strcmp(p->name, name) == 0) |
| 912 | break; |
| 913 | } |
| 914 | return p; |
| 915 | } |
| 916 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 917 | static PyObject * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 918 | get_frozen_object(name) |
| 919 | char *name; |
| 920 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 921 | struct _frozen *p = find_frozen(name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 922 | |
| 923 | if (p == NULL) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 924 | PyErr_Format(PyExc_ImportError, |
| 925 | "No such frozen object named %.200s", |
| 926 | name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 927 | return NULL; |
| 928 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 929 | return PyMarshal_ReadObjectFromString((char *)p->code, p->size); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 930 | } |
| 931 | |
| 932 | /* Initialize a frozen module. |
| 933 | Return 1 for succes, 0 if the module is not found, and -1 with |
| 934 | an exception set if the initialization failed. |
| 935 | This function is also used from frozenmain.c */ |
Guido van Rossum | 0b34490 | 1995-02-07 15:35:27 +0000 | [diff] [blame] | 936 | |
| 937 | int |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 938 | PyImport_ImportFrozenModule(name) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 939 | char *name; |
| 940 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 941 | struct _frozen *p = find_frozen(name); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 942 | PyObject *co; |
| 943 | PyObject *m; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 944 | |
| 945 | if (p == NULL) |
| 946 | return 0; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 947 | if (Py_VerboseFlag) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 948 | fprintf(stderr, "import %s # frozen\n", name); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 949 | co = PyMarshal_ReadObjectFromString((char *)p->code, p->size); |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 950 | if (co == NULL) |
| 951 | return -1; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 952 | if (!PyCode_Check(co)) { |
| 953 | Py_DECREF(co); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 954 | PyErr_Format(PyExc_TypeError, |
| 955 | "frozen object %.200s is not a code object", |
| 956 | name); |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 957 | return -1; |
| 958 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 959 | m = PyImport_ExecCodeModule(name, co); |
| 960 | Py_DECREF(co); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 961 | if (m == NULL) |
| 962 | return -1; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 963 | Py_DECREF(m); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 964 | return 1; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 965 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 966 | |
| 967 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 968 | /* Import a module, either built-in, frozen, or external, and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 969 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 970 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 971 | PyObject * |
| 972 | PyImport_ImportModule(name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 973 | char *name; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 974 | { |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 975 | static PyObject *fromlist = NULL; |
| 976 | if (fromlist == NULL && strchr(name, '.') != NULL) { |
| 977 | fromlist = Py_BuildValue("[s]", "*"); |
| 978 | if (fromlist == NULL) |
| 979 | return NULL; |
| 980 | } |
| 981 | return PyImport_ImportModuleEx(name, NULL, NULL, fromlist); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 982 | } |
| 983 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 984 | /* Forward declarations for helper routines */ |
| 985 | static PyObject *get_parent Py_PROTO((PyObject *globals, |
| 986 | char *buf, int *p_buflen)); |
| 987 | static PyObject *load_next Py_PROTO((PyObject *mod, PyObject *altmod, |
| 988 | char **p_name, char *buf, int *p_buflen)); |
Guido van Rossum | f5f5fdb | 1997-09-06 20:29:52 +0000 | [diff] [blame] | 989 | static int mark_miss Py_PROTO((char *name)); |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 990 | static int ensure_fromlist Py_PROTO((PyObject *mod, PyObject *fromlist, |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 991 | char *buf, int buflen, int recursive)); |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 992 | static PyObject * import_submodule Py_PROTO((PyObject *mod, |
| 993 | char *name, char *fullname)); |
| 994 | |
| 995 | /* The Magnum Opus of dotted-name import :-) */ |
| 996 | |
| 997 | /* XXX TO DO: |
| 998 | - Remember misses in package directories so package submodules |
| 999 | that all import the same toplevel module don't keep hitting on the |
| 1000 | package directory first |
| 1001 | */ |
| 1002 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1003 | PyObject * |
| 1004 | PyImport_ImportModuleEx(name, globals, locals, fromlist) |
| 1005 | char *name; |
| 1006 | PyObject *globals; |
| 1007 | PyObject *locals; |
| 1008 | PyObject *fromlist; |
| 1009 | { |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1010 | char buf[MAXPATHLEN+1]; |
| 1011 | int buflen = 0; |
| 1012 | PyObject *parent, *head, *next, *tail; |
| 1013 | |
| 1014 | parent = get_parent(globals, buf, &buflen); |
| 1015 | if (parent == NULL) |
| 1016 | return NULL; |
| 1017 | |
| 1018 | head = load_next(parent, Py_None, &name, buf, &buflen); |
| 1019 | if (head == NULL) |
| 1020 | return NULL; |
| 1021 | |
| 1022 | tail = head; |
| 1023 | Py_INCREF(tail); |
| 1024 | while (name) { |
| 1025 | next = load_next(tail, tail, &name, buf, &buflen); |
| 1026 | Py_DECREF(tail); |
| 1027 | if (next == NULL) { |
| 1028 | Py_DECREF(head); |
| 1029 | return NULL; |
| 1030 | } |
| 1031 | tail = next; |
| 1032 | } |
| 1033 | |
| 1034 | if (fromlist != NULL) { |
| 1035 | if (fromlist == Py_None || !PyObject_IsTrue(fromlist)) |
| 1036 | fromlist = NULL; |
| 1037 | } |
| 1038 | |
| 1039 | if (fromlist == NULL) { |
| 1040 | Py_DECREF(tail); |
| 1041 | return head; |
| 1042 | } |
| 1043 | |
| 1044 | Py_DECREF(head); |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 1045 | if (!ensure_fromlist(tail, fromlist, buf, buflen, 0)) { |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1046 | Py_DECREF(tail); |
| 1047 | return NULL; |
| 1048 | } |
| 1049 | |
| 1050 | return tail; |
| 1051 | } |
| 1052 | |
| 1053 | static PyObject * |
| 1054 | get_parent(globals, buf, p_buflen) |
| 1055 | PyObject *globals; |
| 1056 | char *buf; |
| 1057 | int *p_buflen; |
| 1058 | { |
| 1059 | static PyObject *namestr = NULL; |
| 1060 | static PyObject *pathstr = NULL; |
| 1061 | PyObject *modname, *modpath, *modules, *parent; |
| 1062 | |
| 1063 | if (globals == NULL || !PyDict_Check(globals)) |
| 1064 | return Py_None; |
| 1065 | |
| 1066 | if (namestr == NULL) { |
| 1067 | namestr = PyString_InternFromString("__name__"); |
| 1068 | if (namestr == NULL) |
| 1069 | return NULL; |
| 1070 | } |
| 1071 | if (pathstr == NULL) { |
| 1072 | pathstr = PyString_InternFromString("__path__"); |
| 1073 | if (pathstr == NULL) |
| 1074 | return NULL; |
| 1075 | } |
| 1076 | |
| 1077 | *buf = '\0'; |
| 1078 | *p_buflen = 0; |
| 1079 | modname = PyDict_GetItem(globals, namestr); |
| 1080 | if (modname == NULL || !PyString_Check(modname)) |
| 1081 | return Py_None; |
| 1082 | |
| 1083 | modpath = PyDict_GetItem(globals, pathstr); |
| 1084 | if (modpath != NULL) { |
| 1085 | int len = PyString_GET_SIZE(modname); |
| 1086 | if (len > MAXPATHLEN) { |
| 1087 | PyErr_SetString(PyExc_ValueError, |
| 1088 | "Module name too long"); |
| 1089 | return NULL; |
| 1090 | } |
| 1091 | strcpy(buf, PyString_AS_STRING(modname)); |
| 1092 | *p_buflen = len; |
| 1093 | } |
| 1094 | else { |
| 1095 | char *start = PyString_AS_STRING(modname); |
| 1096 | char *lastdot = strrchr(start, '.'); |
| 1097 | int len; |
| 1098 | if (lastdot == NULL) |
| 1099 | return Py_None; |
| 1100 | len = lastdot - start; |
| 1101 | if (len >= MAXPATHLEN) { |
| 1102 | PyErr_SetString(PyExc_ValueError, |
| 1103 | "Module name too long"); |
| 1104 | return NULL; |
| 1105 | } |
| 1106 | strncpy(buf, start, len); |
| 1107 | buf[len] = '\0'; |
| 1108 | *p_buflen = len; |
| 1109 | } |
| 1110 | |
| 1111 | modules = PyImport_GetModuleDict(); |
| 1112 | parent = PyDict_GetItemString(modules, buf); |
| 1113 | if (parent == NULL) |
| 1114 | parent = Py_None; |
| 1115 | return parent; |
| 1116 | /* We expect, but can't guarantee, if parent != None, that: |
| 1117 | - parent.__name__ == buf |
| 1118 | - parent.__dict__ is globals |
| 1119 | If this is violated... Who cares? */ |
| 1120 | } |
| 1121 | |
| 1122 | static PyObject * |
| 1123 | load_next(mod, altmod, p_name, buf, p_buflen) |
| 1124 | PyObject *mod; |
| 1125 | PyObject *altmod; /* Either None or same as mod */ |
| 1126 | char **p_name; |
| 1127 | char *buf; |
| 1128 | int *p_buflen; |
| 1129 | { |
| 1130 | char *name = *p_name; |
| 1131 | char *dot = strchr(name, '.'); |
| 1132 | int len; |
| 1133 | char *p; |
| 1134 | PyObject *result; |
| 1135 | |
| 1136 | if (dot == NULL) { |
| 1137 | *p_name = NULL; |
| 1138 | len = strlen(name); |
| 1139 | } |
| 1140 | else { |
| 1141 | *p_name = dot+1; |
| 1142 | len = dot-name; |
| 1143 | } |
| 1144 | |
| 1145 | p = buf + *p_buflen; |
| 1146 | if (p != buf) |
| 1147 | *p++ = '.'; |
| 1148 | if (p+len-buf >= MAXPATHLEN) { |
| 1149 | PyErr_SetString(PyExc_ValueError, |
| 1150 | "Module name too long"); |
| 1151 | return NULL; |
| 1152 | } |
| 1153 | strncpy(p, name, len); |
| 1154 | p[len] = '\0'; |
| 1155 | *p_buflen = p+len-buf; |
| 1156 | |
| 1157 | result = import_submodule(mod, p, buf); |
| 1158 | if (result == Py_None && altmod != mod) { |
| 1159 | Py_DECREF(result); |
Guido van Rossum | f5f5fdb | 1997-09-06 20:29:52 +0000 | [diff] [blame] | 1160 | /* Here, altmod must be None and mod must not be None */ |
Guido van Rossum | 0c81945 | 1997-09-07 06:16:57 +0000 | [diff] [blame] | 1161 | result = import_submodule(altmod, p, p); |
Guido van Rossum | f5f5fdb | 1997-09-06 20:29:52 +0000 | [diff] [blame] | 1162 | if (result != NULL && result != Py_None) { |
| 1163 | if (mark_miss(buf) != 0) { |
| 1164 | Py_DECREF(result); |
| 1165 | return NULL; |
| 1166 | } |
| 1167 | strncpy(buf, name, len); |
| 1168 | buf[len] = '\0'; |
| 1169 | *p_buflen = len; |
| 1170 | } |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1171 | } |
| 1172 | if (result == NULL) |
| 1173 | return NULL; |
| 1174 | |
| 1175 | if (result == Py_None) { |
| 1176 | Py_DECREF(result); |
| 1177 | PyErr_Format(PyExc_ImportError, |
| 1178 | "No module named %.200s", name); |
| 1179 | return NULL; |
| 1180 | } |
| 1181 | |
| 1182 | return result; |
| 1183 | } |
| 1184 | |
| 1185 | static int |
Guido van Rossum | f5f5fdb | 1997-09-06 20:29:52 +0000 | [diff] [blame] | 1186 | mark_miss(name) |
| 1187 | char *name; |
| 1188 | { |
| 1189 | PyObject *modules = PyImport_GetModuleDict(); |
| 1190 | return PyDict_SetItemString(modules, name, Py_None); |
| 1191 | } |
| 1192 | |
| 1193 | static int |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 1194 | ensure_fromlist(mod, fromlist, buf, buflen, recursive) |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1195 | PyObject *mod; |
| 1196 | PyObject *fromlist; |
| 1197 | char *buf; |
| 1198 | int buflen; |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 1199 | int recursive; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1200 | { |
| 1201 | int i; |
| 1202 | |
| 1203 | if (!PyObject_HasAttrString(mod, "__path__")) |
| 1204 | return 1; |
| 1205 | |
| 1206 | for (i = 0; ; i++) { |
| 1207 | PyObject *item = PySequence_GetItem(fromlist, i); |
| 1208 | int hasit; |
| 1209 | if (item == NULL) { |
| 1210 | if (PyErr_ExceptionMatches(PyExc_IndexError)) { |
| 1211 | PyErr_Clear(); |
| 1212 | return 1; |
| 1213 | } |
| 1214 | return 0; |
| 1215 | } |
| 1216 | if (!PyString_Check(item)) { |
| 1217 | PyErr_SetString(PyExc_TypeError, |
| 1218 | "Item in ``from list'' not a string"); |
| 1219 | Py_DECREF(item); |
| 1220 | return 0; |
| 1221 | } |
| 1222 | if (PyString_AS_STRING(item)[0] == '*') { |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 1223 | PyObject *all; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1224 | Py_DECREF(item); |
Guido van Rossum | 9905ef9 | 1997-09-08 16:07:11 +0000 | [diff] [blame] | 1225 | /* See if the package defines __all__ */ |
| 1226 | if (recursive) |
| 1227 | continue; /* Avoid endless recursion */ |
| 1228 | all = PyObject_GetAttrString(mod, "__all__"); |
| 1229 | if (all == NULL) |
| 1230 | PyErr_Clear(); |
| 1231 | else { |
| 1232 | if (!ensure_fromlist(mod, all, buf, buflen, 1)) |
| 1233 | return 0; |
| 1234 | Py_DECREF(all); |
| 1235 | } |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1236 | continue; |
| 1237 | } |
| 1238 | hasit = PyObject_HasAttr(mod, item); |
| 1239 | if (!hasit) { |
| 1240 | char *subname = PyString_AS_STRING(item); |
| 1241 | PyObject *submod; |
| 1242 | char *p; |
| 1243 | if (buflen + strlen(subname) >= MAXPATHLEN) { |
| 1244 | PyErr_SetString(PyExc_ValueError, |
| 1245 | "Module name too long"); |
| 1246 | Py_DECREF(item); |
| 1247 | return 0; |
| 1248 | } |
| 1249 | p = buf + buflen; |
| 1250 | *p++ = '.'; |
| 1251 | strcpy(p, subname); |
| 1252 | submod = import_submodule(mod, subname, buf); |
| 1253 | Py_XDECREF(submod); |
| 1254 | if (submod == NULL) { |
| 1255 | Py_DECREF(item); |
| 1256 | return 0; |
| 1257 | } |
| 1258 | } |
| 1259 | Py_DECREF(item); |
| 1260 | } |
| 1261 | |
Guido van Rossum | a7f2e81 | 1997-10-03 15:33:32 +0000 | [diff] [blame] | 1262 | /* NOTREACHED */ |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1263 | } |
| 1264 | |
| 1265 | static PyObject * |
| 1266 | import_submodule(mod, subname, fullname) |
| 1267 | PyObject *mod; /* May be None */ |
| 1268 | char *subname; |
| 1269 | char *fullname; |
| 1270 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1271 | PyObject *modules = PyImport_GetModuleDict(); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1272 | PyObject *m; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1273 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1274 | /* Require: |
| 1275 | if mod == None: subname == fullname |
| 1276 | else: mod.__name__ + "." + subname == fullname |
| 1277 | */ |
| 1278 | |
| 1279 | if ((m = PyDict_GetItemString(modules, fullname)) != NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1280 | Py_INCREF(m); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 1281 | } |
| 1282 | else { |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1283 | PyObject *path; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1284 | char buf[MAXPATHLEN+1]; |
| 1285 | struct filedescr *fdp; |
| 1286 | FILE *fp = NULL; |
| 1287 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1288 | path = PyObject_GetAttrString(mod, "__path__"); |
| 1289 | if (path == NULL) |
| 1290 | PyErr_Clear(); |
| 1291 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1292 | buf[0] = '\0'; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1293 | fdp = find_module(subname, path, |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1294 | buf, MAXPATHLEN+1, &fp); |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1295 | if (fdp == NULL) { |
| 1296 | if (!PyErr_ExceptionMatches(PyExc_ImportError)) |
| 1297 | return NULL; |
| 1298 | PyErr_Clear(); |
| 1299 | Py_INCREF(Py_None); |
| 1300 | return Py_None; |
| 1301 | } |
| 1302 | m = load_module(fullname, fp, buf, fdp->type); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1303 | if (fp) |
| 1304 | fclose(fp); |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1305 | if (m != NULL && mod != Py_None) { |
| 1306 | if (PyObject_SetAttrString(mod, subname, m) < 0) { |
| 1307 | Py_DECREF(m); |
| 1308 | m = NULL; |
| 1309 | } |
| 1310 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1311 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1312 | |
| 1313 | return m; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1314 | } |
| 1315 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1316 | |
| 1317 | /* Re-import a module of any kind and return its module object, WITH |
| 1318 | INCREMENTED REFERENCE COUNT */ |
| 1319 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1320 | PyObject * |
| 1321 | PyImport_ReloadModule(m) |
| 1322 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1323 | { |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1324 | PyObject *modules = PyImport_GetModuleDict(); |
Guido van Rossum | 222ef56 | 1997-09-06 19:41:09 +0000 | [diff] [blame] | 1325 | PyObject *path = NULL; |
| 1326 | char *name, *subname; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1327 | char buf[MAXPATHLEN+1]; |
| 1328 | struct filedescr *fdp; |
| 1329 | FILE *fp = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1330 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1331 | if (m == NULL || !PyModule_Check(m)) { |
| 1332 | PyErr_SetString(PyExc_TypeError, |
| 1333 | "reload() argument must be module"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1334 | return NULL; |
| 1335 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1336 | name = PyModule_GetName(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1337 | if (name == NULL) |
| 1338 | return NULL; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1339 | if (m != PyDict_GetItemString(modules, name)) { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1340 | PyErr_Format(PyExc_ImportError, |
| 1341 | "reload(): module %.200s not in sys.modules", |
| 1342 | name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1343 | return NULL; |
| 1344 | } |
Guido van Rossum | 222ef56 | 1997-09-06 19:41:09 +0000 | [diff] [blame] | 1345 | subname = strrchr(name, '.'); |
| 1346 | if (subname == NULL) |
| 1347 | subname = name; |
| 1348 | else { |
| 1349 | PyObject *parentname, *parent; |
| 1350 | parentname = PyString_FromStringAndSize(name, (subname-name)); |
| 1351 | if (parentname == NULL) |
| 1352 | return NULL; |
| 1353 | parent = PyDict_GetItem(modules, parentname); |
| 1354 | if (parent == NULL) { |
| 1355 | PyErr_Format(PyExc_ImportError, |
| 1356 | "reload(): parent %.200s not in sys.modules", |
| 1357 | name); |
| 1358 | return NULL; |
| 1359 | } |
| 1360 | subname++; |
| 1361 | path = PyObject_GetAttrString(parent, "__path__"); |
| 1362 | if (path == NULL) |
| 1363 | PyErr_Clear(); |
| 1364 | } |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1365 | buf[0] = '\0'; |
Guido van Rossum | 222ef56 | 1997-09-06 19:41:09 +0000 | [diff] [blame] | 1366 | fdp = find_module(subname, path, buf, MAXPATHLEN+1, &fp); |
| 1367 | Py_XDECREF(path); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1368 | if (fdp == NULL) |
| 1369 | return NULL; |
| 1370 | m = load_module(name, fp, buf, fdp->type); |
| 1371 | if (fp) |
| 1372 | fclose(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1373 | return m; |
| 1374 | } |
| 1375 | |
| 1376 | |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1377 | /* Higher-level import emulator which emulates the "import" statement |
| 1378 | more accurately -- it invokes the __import__() function from the |
| 1379 | builtins of the current globals. This means that the import is |
| 1380 | done using whatever import hooks are installed in the current |
| 1381 | environment, e.g. by "ni" or "rexec". */ |
| 1382 | |
| 1383 | PyObject * |
| 1384 | PyImport_Import(module_name) |
| 1385 | PyObject *module_name; |
| 1386 | { |
| 1387 | static PyObject *silly_list = NULL; |
| 1388 | static PyObject *builtins_str = NULL; |
| 1389 | static PyObject *import_str = NULL; |
| 1390 | static PyObject *standard_builtins = NULL; |
| 1391 | PyObject *globals = NULL; |
| 1392 | PyObject *import = NULL; |
| 1393 | PyObject *builtins = NULL; |
| 1394 | PyObject *r = NULL; |
| 1395 | |
| 1396 | /* Initialize constant string objects */ |
| 1397 | if (silly_list == NULL) { |
| 1398 | import_str = PyString_InternFromString("__import__"); |
| 1399 | if (import_str == NULL) |
| 1400 | return NULL; |
| 1401 | builtins_str = PyString_InternFromString("__builtins__"); |
| 1402 | if (builtins_str == NULL) |
| 1403 | return NULL; |
| 1404 | silly_list = Py_BuildValue("[s]", "__doc__"); |
| 1405 | if (silly_list == NULL) |
| 1406 | return NULL; |
| 1407 | } |
| 1408 | |
| 1409 | /* Get the builtins from current globals */ |
| 1410 | globals = PyEval_GetGlobals(); |
| 1411 | if(globals != NULL) { |
| 1412 | builtins = PyObject_GetItem(globals, builtins_str); |
| 1413 | if (builtins == NULL) |
| 1414 | goto err; |
| 1415 | } |
| 1416 | else { |
| 1417 | /* No globals -- use standard builtins, and fake globals */ |
| 1418 | PyErr_Clear(); |
| 1419 | |
| 1420 | if (standard_builtins == NULL) { |
| 1421 | standard_builtins = |
| 1422 | PyImport_ImportModule("__builtin__"); |
| 1423 | if (standard_builtins == NULL) |
| 1424 | return NULL; |
| 1425 | } |
| 1426 | |
| 1427 | builtins = standard_builtins; |
| 1428 | Py_INCREF(builtins); |
| 1429 | globals = Py_BuildValue("{OO}", builtins_str, builtins); |
| 1430 | if (globals == NULL) |
| 1431 | goto err; |
| 1432 | } |
| 1433 | |
| 1434 | /* Get the __import__ function from the builtins */ |
| 1435 | if (PyDict_Check(builtins)) |
| 1436 | import=PyObject_GetItem(builtins, import_str); |
| 1437 | else |
| 1438 | import=PyObject_GetAttr(builtins, import_str); |
| 1439 | if (import == NULL) |
| 1440 | goto err; |
| 1441 | |
| 1442 | /* Call the _import__ function with the proper argument list */ |
| 1443 | r = PyObject_CallFunction(import, "OOOO", |
| 1444 | module_name, globals, globals, silly_list); |
| 1445 | |
| 1446 | err: |
| 1447 | Py_XDECREF(globals); |
| 1448 | Py_XDECREF(builtins); |
| 1449 | Py_XDECREF(import); |
| 1450 | |
| 1451 | return r; |
| 1452 | } |
| 1453 | |
| 1454 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1455 | /* Module 'imp' provides Python access to the primitives used for |
| 1456 | importing modules. |
| 1457 | */ |
| 1458 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1459 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1460 | imp_get_magic(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1461 | PyObject *self; |
| 1462 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1463 | { |
| 1464 | char buf[4]; |
| 1465 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1466 | if (!PyArg_ParseTuple(args, "")) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1467 | return NULL; |
Guido van Rossum | 6bf62da | 1997-04-11 20:37:35 +0000 | [diff] [blame] | 1468 | buf[0] = (char) ((MAGIC >> 0) & 0xff); |
| 1469 | buf[1] = (char) ((MAGIC >> 8) & 0xff); |
| 1470 | buf[2] = (char) ((MAGIC >> 16) & 0xff); |
| 1471 | buf[3] = (char) ((MAGIC >> 24) & 0xff); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1472 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1473 | return PyString_FromStringAndSize(buf, 4); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1474 | } |
| 1475 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1476 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1477 | imp_get_suffixes(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1478 | PyObject *self; |
| 1479 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1480 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1481 | PyObject *list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1482 | struct filedescr *fdp; |
| 1483 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1484 | if (!PyArg_ParseTuple(args, "")) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1485 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1486 | list = PyList_New(0); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1487 | if (list == NULL) |
| 1488 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1489 | for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) { |
| 1490 | PyObject *item = Py_BuildValue("ssi", |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1491 | fdp->suffix, fdp->mode, fdp->type); |
| 1492 | if (item == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1493 | Py_DECREF(list); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1494 | return NULL; |
| 1495 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1496 | if (PyList_Append(list, item) < 0) { |
| 1497 | Py_DECREF(list); |
| 1498 | Py_DECREF(item); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1499 | return NULL; |
| 1500 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1501 | Py_DECREF(item); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1502 | } |
| 1503 | return list; |
| 1504 | } |
| 1505 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1506 | static PyObject * |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1507 | call_find_module(name, path) |
| 1508 | char *name; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1509 | PyObject *path; /* list or None or NULL */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1510 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1511 | extern int fclose Py_PROTO((FILE *)); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1512 | PyObject *fob, *ret; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1513 | struct filedescr *fdp; |
| 1514 | char pathname[MAXPATHLEN+1]; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1515 | FILE *fp = NULL; |
| 1516 | |
| 1517 | pathname[0] = '\0'; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1518 | if (path == Py_None) |
| 1519 | path = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1520 | fdp = find_module(name, path, pathname, MAXPATHLEN+1, &fp); |
| 1521 | if (fdp == NULL) |
| 1522 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1523 | if (fp != NULL) { |
| 1524 | fob = PyFile_FromFile(fp, pathname, fdp->mode, fclose); |
| 1525 | if (fob == NULL) { |
| 1526 | fclose(fp); |
| 1527 | return NULL; |
| 1528 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1529 | } |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1530 | else { |
| 1531 | fob = Py_None; |
| 1532 | Py_INCREF(fob); |
| 1533 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1534 | ret = Py_BuildValue("Os(ssi)", |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1535 | fob, pathname, fdp->suffix, fdp->mode, fdp->type); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1536 | Py_DECREF(fob); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1537 | return ret; |
| 1538 | } |
| 1539 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1540 | static PyObject * |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1541 | imp_find_module(self, args) |
| 1542 | PyObject *self; |
| 1543 | PyObject *args; |
| 1544 | { |
| 1545 | char *name; |
| 1546 | PyObject *path = NULL; |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1547 | if (!PyArg_ParseTuple(args, "s|O", &name, &path)) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1548 | return NULL; |
| 1549 | return call_find_module(name, path); |
| 1550 | } |
| 1551 | |
| 1552 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1553 | imp_init_builtin(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1554 | PyObject *self; |
| 1555 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1556 | { |
| 1557 | char *name; |
| 1558 | int ret; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1559 | PyObject *m; |
| 1560 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1561 | return NULL; |
| 1562 | ret = init_builtin(name); |
| 1563 | if (ret < 0) |
| 1564 | return NULL; |
| 1565 | if (ret == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1566 | Py_INCREF(Py_None); |
| 1567 | return Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1568 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1569 | m = PyImport_AddModule(name); |
| 1570 | Py_XINCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1571 | return m; |
| 1572 | } |
| 1573 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1574 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1575 | imp_init_frozen(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1576 | PyObject *self; |
| 1577 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1578 | { |
| 1579 | char *name; |
| 1580 | int ret; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1581 | PyObject *m; |
| 1582 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1583 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1584 | ret = PyImport_ImportFrozenModule(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1585 | if (ret < 0) |
| 1586 | return NULL; |
| 1587 | if (ret == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1588 | Py_INCREF(Py_None); |
| 1589 | return Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1590 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1591 | m = PyImport_AddModule(name); |
| 1592 | Py_XINCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1593 | return m; |
| 1594 | } |
| 1595 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1596 | static PyObject * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1597 | imp_get_frozen_object(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1598 | PyObject *self; |
| 1599 | PyObject *args; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1600 | { |
| 1601 | char *name; |
Jack Jansen | 95ffa23 | 1995-10-03 14:38:41 +0000 | [diff] [blame] | 1602 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1603 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1604 | return NULL; |
| 1605 | return get_frozen_object(name); |
| 1606 | } |
| 1607 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1608 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1609 | imp_is_builtin(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1610 | PyObject *self; |
| 1611 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1612 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1613 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1614 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1615 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1616 | return PyInt_FromLong(is_builtin(name)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1617 | } |
| 1618 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1619 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1620 | imp_is_frozen(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1621 | PyObject *self; |
| 1622 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1623 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1624 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1625 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1626 | return NULL; |
Guido van Rossum | a86f77d | 1997-09-09 18:53:47 +0000 | [diff] [blame] | 1627 | return PyInt_FromLong(find_frozen(name) != NULL); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1628 | } |
| 1629 | |
| 1630 | static FILE * |
| 1631 | get_file(pathname, fob, mode) |
| 1632 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1633 | PyObject *fob; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1634 | char *mode; |
| 1635 | { |
| 1636 | FILE *fp; |
| 1637 | if (fob == NULL) { |
| 1638 | fp = fopen(pathname, mode); |
| 1639 | if (fp == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1640 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1641 | } |
| 1642 | else { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1643 | fp = PyFile_AsFile(fob); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1644 | if (fp == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1645 | PyErr_SetString(PyExc_ValueError, |
| 1646 | "bad/closed file object"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1647 | } |
| 1648 | return fp; |
| 1649 | } |
| 1650 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1651 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1652 | imp_load_compiled(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1653 | PyObject *self; |
| 1654 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1655 | { |
| 1656 | char *name; |
| 1657 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1658 | PyObject *fob = NULL; |
| 1659 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1660 | FILE *fp; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1661 | if (!PyArg_ParseTuple(args, "ss|O!", &name, &pathname, |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1662 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1663 | return NULL; |
| 1664 | fp = get_file(pathname, fob, "rb"); |
| 1665 | if (fp == NULL) |
| 1666 | return NULL; |
| 1667 | m = load_compiled_module(name, pathname, fp); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1668 | if (fob == NULL) |
| 1669 | fclose(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1670 | return m; |
| 1671 | } |
| 1672 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1673 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1674 | imp_load_dynamic(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1675 | PyObject *self; |
| 1676 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1677 | { |
| 1678 | char *name; |
| 1679 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1680 | PyObject *fob = NULL; |
| 1681 | PyObject *m; |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 1682 | FILE *fp = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1683 | if (!PyArg_ParseTuple(args, "ss|O!", &name, &pathname, |
| 1684 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1685 | return NULL; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1686 | if (fob) { |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 1687 | fp = get_file(pathname, fob, "r"); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1688 | if (fp == NULL) |
| 1689 | return NULL; |
| 1690 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1691 | m = _PyImport_LoadDynamicModule(name, pathname, fp); |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 1692 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1693 | } |
| 1694 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1695 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1696 | imp_load_source(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1697 | PyObject *self; |
| 1698 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1699 | { |
| 1700 | char *name; |
| 1701 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1702 | PyObject *fob = NULL; |
| 1703 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1704 | FILE *fp; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1705 | if (!PyArg_ParseTuple(args, "ss|O!", &name, &pathname, |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1706 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1707 | return NULL; |
| 1708 | fp = get_file(pathname, fob, "r"); |
| 1709 | if (fp == NULL) |
| 1710 | return NULL; |
| 1711 | m = load_source_module(name, pathname, fp); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1712 | if (fob == NULL) |
| 1713 | fclose(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1714 | return m; |
| 1715 | } |
| 1716 | |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1717 | #ifdef macintosh |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1718 | static PyObject * |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1719 | imp_load_resource(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1720 | PyObject *self; |
| 1721 | PyObject *args; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1722 | { |
| 1723 | char *name; |
| 1724 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1725 | PyObject *m; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1726 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1727 | if (!PyArg_ParseTuple(args, "ss", &name, &pathname)) |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1728 | return NULL; |
| 1729 | m = PyMac_LoadResourceModule(name, pathname); |
| 1730 | return m; |
| 1731 | } |
| 1732 | #endif /* macintosh */ |
| 1733 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1734 | static PyObject * |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1735 | imp_load_module(self, args) |
| 1736 | PyObject *self; |
| 1737 | PyObject *args; |
| 1738 | { |
| 1739 | char *name; |
| 1740 | PyObject *fob; |
| 1741 | char *pathname; |
| 1742 | char *suffix; /* Unused */ |
| 1743 | char *mode; |
| 1744 | int type; |
| 1745 | FILE *fp; |
| 1746 | |
| 1747 | if (!PyArg_ParseTuple(args, "sOs(ssi)", |
| 1748 | &name, &fob, &pathname, |
| 1749 | &suffix, &mode, &type)) |
| 1750 | return NULL; |
| 1751 | if (*mode && (*mode != 'r' || strchr(mode, '+') != NULL)) { |
| 1752 | PyErr_Format(PyExc_ValueError, |
| 1753 | "invalid file open mode %.200s", mode); |
| 1754 | return NULL; |
| 1755 | } |
| 1756 | if (fob == Py_None) |
| 1757 | fp = NULL; |
| 1758 | else { |
| 1759 | if (!PyFile_Check(fob)) { |
| 1760 | PyErr_SetString(PyExc_ValueError, |
| 1761 | "load_module arg#2 should be a file or None"); |
| 1762 | return NULL; |
| 1763 | } |
| 1764 | fp = get_file(pathname, fob, mode); |
| 1765 | if (fp == NULL) |
| 1766 | return NULL; |
| 1767 | } |
| 1768 | return load_module(name, fp, pathname, type); |
| 1769 | } |
| 1770 | |
| 1771 | static PyObject * |
| 1772 | imp_load_package(self, args) |
| 1773 | PyObject *self; |
| 1774 | PyObject *args; |
| 1775 | { |
| 1776 | char *name; |
| 1777 | char *pathname; |
| 1778 | if (!PyArg_ParseTuple(args, "ss", &name, &pathname)) |
| 1779 | return NULL; |
| 1780 | return load_package(name, pathname); |
| 1781 | } |
| 1782 | |
| 1783 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1784 | imp_new_module(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1785 | PyObject *self; |
| 1786 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1787 | { |
| 1788 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1789 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1790 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1791 | return PyModule_New(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1792 | } |
| 1793 | |
Guido van Rossum | 0207e6d | 1997-09-09 22:04:42 +0000 | [diff] [blame] | 1794 | /* Doc strings */ |
| 1795 | |
| 1796 | static char doc_imp[] = "\ |
| 1797 | This module provides the components needed to build your own\n\ |
| 1798 | __import__ function. Undocumented functions are obsolete.\n\ |
| 1799 | "; |
| 1800 | |
| 1801 | static char doc_find_module[] = "\ |
| 1802 | find_module(name, [path]) -> (file, filename, (suffix, mode, type))\n\ |
| 1803 | Search for a module. If path is omitted or None, search for a\n\ |
| 1804 | built-in, frozen or special module and continue search in sys.path.\n\ |
| 1805 | The module name cannot contain '.'; to search for a submodule of a\n\ |
| 1806 | package, pass the submodule name and the package's __path__.\ |
| 1807 | "; |
| 1808 | |
| 1809 | static char doc_load_module[] = "\ |
| 1810 | load_module(name, file, filename, (suffix, mode, type)) -> module\n\ |
| 1811 | Load a module, given information returned by find_module().\n\ |
| 1812 | The module name must include the full package name, if any.\ |
| 1813 | "; |
| 1814 | |
| 1815 | static char doc_get_magic[] = "\ |
| 1816 | get_magic() -> string\n\ |
| 1817 | Return the magic number for .pyc or .pyo files.\ |
| 1818 | "; |
| 1819 | |
| 1820 | static char doc_get_suffixes[] = "\ |
| 1821 | get_suffixes() -> [(suffix, mode, type), ...]\n\ |
| 1822 | Return a list of (suffix, mode, type) tuples describing the files\n\ |
| 1823 | that find_module() looks for.\ |
| 1824 | "; |
| 1825 | |
| 1826 | static char doc_new_module[] = "\ |
| 1827 | new_module(name) -> module\n\ |
| 1828 | Create a new module. Do not enter it in sys.modules.\n\ |
| 1829 | The module name must include the full package name, if any.\ |
| 1830 | "; |
| 1831 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1832 | static PyMethodDef imp_methods[] = { |
Guido van Rossum | 0207e6d | 1997-09-09 22:04:42 +0000 | [diff] [blame] | 1833 | {"find_module", imp_find_module, 1, doc_find_module}, |
| 1834 | {"get_magic", imp_get_magic, 1, doc_get_magic}, |
| 1835 | {"get_suffixes", imp_get_suffixes, 1, doc_get_suffixes}, |
| 1836 | {"load_module", imp_load_module, 1, doc_load_module}, |
| 1837 | {"new_module", imp_new_module, 1, doc_new_module}, |
| 1838 | /* The rest are obsolete */ |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1839 | {"get_frozen_object", imp_get_frozen_object, 1}, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1840 | {"init_builtin", imp_init_builtin, 1}, |
| 1841 | {"init_frozen", imp_init_frozen, 1}, |
| 1842 | {"is_builtin", imp_is_builtin, 1}, |
| 1843 | {"is_frozen", imp_is_frozen, 1}, |
| 1844 | {"load_compiled", imp_load_compiled, 1}, |
| 1845 | {"load_dynamic", imp_load_dynamic, 1}, |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1846 | {"load_package", imp_load_package, 1}, |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1847 | #ifdef macintosh |
| 1848 | {"load_resource", imp_load_resource, 1}, |
| 1849 | #endif |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1850 | {"load_source", imp_load_source, 1}, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1851 | {NULL, NULL} /* sentinel */ |
| 1852 | }; |
| 1853 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1854 | int |
| 1855 | setint(d, name, value) |
| 1856 | PyObject *d; |
| 1857 | char *name; |
| 1858 | int value; |
| 1859 | { |
| 1860 | PyObject *v; |
| 1861 | int err; |
| 1862 | |
| 1863 | v = PyInt_FromLong((long)value); |
| 1864 | err = PyDict_SetItemString(d, name, v); |
| 1865 | Py_XDECREF(v); |
| 1866 | return err; |
| 1867 | } |
| 1868 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1869 | void |
| 1870 | initimp() |
| 1871 | { |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1872 | PyObject *m, *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1873 | |
Guido van Rossum | 0207e6d | 1997-09-09 22:04:42 +0000 | [diff] [blame] | 1874 | m = Py_InitModule4("imp", imp_methods, doc_imp, |
| 1875 | NULL, PYTHON_API_VERSION); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1876 | d = PyModule_GetDict(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1877 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1878 | if (setint(d, "SEARCH_ERROR", SEARCH_ERROR) < 0) goto failure; |
| 1879 | if (setint(d, "PY_SOURCE", PY_SOURCE) < 0) goto failure; |
| 1880 | if (setint(d, "PY_COMPILED", PY_COMPILED) < 0) goto failure; |
| 1881 | if (setint(d, "C_EXTENSION", C_EXTENSION) < 0) goto failure; |
| 1882 | if (setint(d, "PY_RESOURCE", PY_RESOURCE) < 0) goto failure; |
| 1883 | if (setint(d, "PKG_DIRECTORY", PKG_DIRECTORY) < 0) goto failure; |
| 1884 | if (setint(d, "C_BUILTIN", C_BUILTIN) < 0) goto failure; |
| 1885 | if (setint(d, "PY_FROZEN", PY_FROZEN) < 0) goto failure; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1886 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1887 | failure: |
| 1888 | ; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1889 | } |