mdw@git.distorted.org.uk Git - pyke/blob - pyke.h

   1 /* -*-c-*-
   2  *
   3  * Pyke: the Python Kit for Extensions
   4  *
   5  * (c) 2019 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of Pyke: the Python Kit for Extensions.
  11  *
  12  * Pyke is free software: you can redistribute it and/or modify it under
  13  * the terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.
  16  *
  17  * Pyke is distributed in the hope that it will be useful, but WITHOUT
  18  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  19  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  20  * for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with Pyke.  If not, write to the Free Software Foundation, Inc.,
  24  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 #ifndef PYKE_H
  28 #define PYKE_H
  29
  30 #ifdef __cplusplus
  31   extern "C" {
  32 #endif
  33
  34 /*----- Header files ------------------------------------------------------*/
  35
  36 #define PY_SSIZE_T_CLEAN
  37
  38 #include <Python.h>
  39 #include <structmember.h>
  40
  41 /*----- Other preliminaries -----------------------------------------------*/
  42
  43 #define NOTHING
  44 #define COMMA ,
  45
  46 /*----- Symbol visibility -------------------------------------------------*
  47  *
  48  * This library is very messy regarding symbol namespace.  Keep this mess
  49  * within our shared-object.
  50  */
  51
  52 #define GOBBLE_SEMI extern int notexist
  53 #if defined(__GNUC__) && defined(__ELF__)
  54 #  define PRIVATE_SYMBOLS _Pragma("GCC visibility push(hidden)") GOBBLE_SEMI
  55 #  define PUBLIC_SYMBOLS _Pragma("GCC visibility pop") GOBBLE_SEMI
  56 #  define EXPORT __attribute__((__visibility__("default")))
  57 #else
  58 #  define PRIVATE_SYMBOLS GOBBLE_SEMI
  59 #  define PUBLIC_SYMBOLS GOBBLE_SEMI
  60 #  define EXPORT
  61 #endif
  62
  63 PRIVATE_SYMBOLS;
  64
  65 /*----- Python version compatibility hacks --------------------------------*/
  66
  67 /* The handy `Py_TYPE' and `Py_SIZE' macros turned up in 2.6.  Define them if
  68  * they're not already here.
  69  */
  70 #ifndef Py_TYPE
  71 #  define Py_TYPE(obj) (((PyObject *)(obj))->ob_type)
  72 #endif
  73 #ifndef Py_SIZE
  74 #  define Py_SIZE(obj) (((PyVarObject *)(obj))->ob_size)
  75 #endif
  76
  77 /* Python 3 added internal structure to the various object headers, and
  78  * defined a new macro `PyVarObject_HEAD_INIT' to initialize variable-length
  79  * static instances correctly.  Define it if it's not already here.
  80  */
  81 #ifndef PyVarObject_HEAD_INIT
  82 #  define PyVarObject_HEAD_INIT(super, sz) PyObject_HEAD_INIT(super) sz,
  83 #endif
  84
  85 /*----- Utilities for returning values and exceptions ---------------------*/
  86
  87 /* Returning values. */
  88 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
  89 #define RETURN_NONE RETURN_OBJ(Py_None)
  90 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
  91 #define RETURN_TRUE RETURN_OBJ(Py_True)
  92 #define RETURN_FALSE RETURN_OBJ(Py_False)
  93 #define RETURN_ME RETURN_OBJ(me)
  94
  95 /* Returning exceptions.  (Note that `KeyError' is `MAPERR' here, because
  96  * Catacomb has its own kind of `KeyError'.)
  97  */
  98 #define EXCERR(exc, str) do {                                           \
  99   PyErr_SetString(exc, str);                                            \
 100   goto end;                                                             \
 101 } while (0)
 102 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 103 #define OVFERR(str) EXCERR(PyExc_OverflowError, str)
 104 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 105 #define IXERR(str) EXCERR(PyExc_IndexError, str)
 106 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 107 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 108 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 109 #define MAPERR(idx) do {                                                \
 110   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 111   goto end;                                                             \
 112 } while (0)
 113 #define OSERR(name) do {                                                \
 114   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 115   goto end;                                                             \
 116 } while (0)
 117
 118 /* Saving and restoring exceptions. */
 119 struct excinfo { PyObject *ty, *val, *tb; };
 120 #define EXCINFO_INIT { 0, 0, 0 }
 121 #define INIT_EXCINFO(exc) do {                                          \
 122   struct excinfo *_exc = (exc); _exc->ty = _exc->val = _exc->tb = 0;    \
 123 } while (0)
 124 #define RELEASE_EXCINFO(exc) do {                                       \
 125   struct excinfo *_exc = (exc);                                         \
 126   Py_XDECREF(_exc->ty);  _exc->ty  = 0;                                 \
 127   Py_XDECREF(_exc->val); _exc->val = 0;                                 \
 128   Py_XDECREF(_exc->tb);  _exc->tb  = 0;                                 \
 129 } while (0)
 130 #define STASH_EXCINFO(exc) do {                                         \
 131   struct excinfo *_exc = (exc);                                         \
 132   PyErr_Fetch(&_exc->ty, &_exc->val, &_exc->tb);                        \
 133   PyErr_NormalizeException(&_exc->ty, &_exc->val, &_exc->tb);           \
 134 } while (0)
 135 #define RESTORE_EXCINFO(exc) do {                                       \
 136   struct excinfo *_exc = (exc);                                         \
 137   PyErr_Restore(_exc->ty, _exc->val, _exc->tb);                         \
 138   _exc->ty = _exc->val = _exc->tb = 0;                                  \
 139 } while (0)
 140 extern void report_lost_exception(struct excinfo *, const char *, ...);
 141 extern void report_lost_exception_v(struct excinfo *, const char *, va_list);
 142 extern void stash_exception(struct excinfo *, const char *, ...);
 143 extern void restore_exception(struct excinfo *, const char *, ...);
 144
 145 /*----- Conversions -------------------------------------------------------*/
 146
 147 /* Define an input conversion (`O&') function: check that the object has
 148  * Python type TY, and extract a C pointer to CTY by calling EXT on the
 149  * object (which may well be a macro).
 150  */
 151 #define CONVFUNC(ty, cty, ext)                                          \
 152   int conv##ty(PyObject *o, void *p)                                    \
 153   {                                                                     \
 154     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 155       TYERR("wanted a " #ty);                                           \
 156     *(cty *)p = ext(o);                                                 \
 157     return (1);                                                         \
 158   end:                                                                  \
 159     return (0);                                                         \
 160   }
 161
 162 /* Input conversion functions for standard kinds of objects, with overflow
 163  * checking where applicable.
 164  */
 165 extern int convulong(PyObject *, void *); /* unsigned long */
 166 extern int convuint(PyObject *, void *); /* unsigned int */
 167 extern int convszt(PyObject *, void *); /* size_t */
 168 extern int convbool(PyObject *, void *); /* bool */
 169
 170 /* Output conversions. */
 171 extern PyObject *getbool(int);          /* bool */
 172 extern PyObject *getulong(unsigned long); /* any kind of unsigned integer */
 173
 174 /*----- Miscellaneous utilities -------------------------------------------*/
 175
 176 #define FREEOBJ(obj) (Py_TYPE(obj)->tp_free((PyObject *)(obj)))
 177   /* Actually free OBJ, e.g., in a deallocation function. */
 178
 179 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 180   /* A `tp_new' function which refuses to make the object. */
 181
 182 #ifndef CONVERT_CAREFULLY
 183 #  define CONVERT_CAREFULLY(newty, expty, obj)                          \
 184      (!sizeof(*(expty *)0 = (obj)) + (/*unconst*/ newty)(obj))
 185   /* Convert OBJ to the type NEWTY, having previously checked that it is
 186    * convertible to the expected type EXPTY.
 187    *
 188    * Because of the way we set up types, we can make many kinds of tables be
 189    * `const' which can't usually be so (because Python will want to fiddle
 190    * with their reference counts); and, besides, Python's internals are
 191    * generally quite bad at being `const'-correct about tables.  One frequent
 192    * application of this macro, then, is in removing `const' from a type
 193    * without sacrificing all type safety.  The other common use is in
 194    * checking that method function types match up with the signatures
 195    * expected in their method definitions.
 196    */
 197 #endif
 198
 199 #define KWLIST CONVERT_CAREFULLY(char **, const char *const *, kwlist)
 200   /* Strip `const' qualifiers from the keyword list `kwlist'.  Useful when
 201    * calling `PyArg_ParseTupleAndKeywords', which isn't `const'-correct.
 202    */
 203
 204 /*----- Type definitions --------------------------------------------------*
 205  *
 206  * Pyke types are defined in a rather unusual way.
 207  *
 208  * The main code defines a `type skeleton' of type `PyTypeObject',
 209  * conventionally named `TY_pytype_skel'.  Unlike typical Python type
 210  * definitions in extensions, this can (and should) be read-only.  Also,
 211  * there's no point in setting the `tp_base' pointer here, because the actual
 212  * runtime base type object won't, in general, be known at compile time.
 213  * Instead, the type skeletons are converted into Python `heap types' by the
 214  * `INITTYPE' macro.  The main difference is that Python code can add
 215  * attributes to heap types, and we make extensive use of this ability.
 216  */
 217
 218 extern void *newtype(PyTypeObject */*meta*/,
 219                      const PyTypeObject */*skel*/, const char */*name*/);
 220   /* Make and return a new Python type object, of type META (typically
 221    * `PyType_Type', but may be a subclass), filled in from the skeleton SKEL
 222    * (null to inherit everything), and named NAME.  The caller can mess with
 223    * the type object further at this time: call `typeready' when it's set up
 224    * properly.
 225    */
 226
 227 extern void typeready(PyTypeObject *);
 228   /* The type object is now ready to be used. */
 229
 230 extern PyTypeObject *inittype(const PyTypeObject */*skel*/,
 231                               PyTypeObject */*base*/,
 232                               PyTypeObject */*meta*/);
 233   /* All-in-one function to construct a working type from a type skeleton
 234    * SKEL, with known base type BASE (null for `object') and metaclass.
 235    */
 236
 237 /* Alias for built-in types, to fit in with Pyke naming conventions. */
 238 #define root_pytype 0
 239 #define type_pytype &PyType_Type
 240
 241 #define INITTYPE_META(ty, base, meta) do {                              \
 242   ty##_pytype = inittype(&ty##_pytype_skel, base##_pytype, meta##_pytype); \
 243 } while (0)
 244 #define INITTYPE(ty, base) INITTYPE_META(ty, base, type)
 245   /* Macros to initialize a type from its skeleton. */
 246
 247 /* Macros for filling in `PyMethodDef' tables, ensuring that functions have
 248  * the expected signatures.
 249  */
 250 #define STD_METHOD(decor, func, flags, doc)                             \
 251   { #func, decor(func), METH_VARARGS | flags, doc },
 252 #define KEYWORD_METHOD(decor, func, flags, doc)                         \
 253   { #func,                                                              \
 254     CONVERT_CAREFULLY(PyCFunction, PyCFunctionWithKeywords, decor(func)), \
 255     METH_VARARGS | METH_KEYWORDS | flags,                               \
 256     doc },
 257 #define NOARG_METHOD(decor, func, flags, doc)                           \
 258   { #func,                                                              \
 259     CONVERT_CAREFULLY(PyCFunction, PyNoArgsFunction, decor(func)),      \
 260     METH_NOARGS | flags,                                                \
 261     doc },
 262
 263 /* Convenience wrappers for filling in `PyMethodDef' tables, following
 264  * Pyke naming convention.  Define `METHNAME' locally as
 265  *
 266  *      #define METHNAME(name) foometh_##func
 267  *
 268  * around the method table.
 269  */
 270 #define METH(func, doc) STD_METHOD(METHNAME, func, 0, doc)
 271 #define KWMETH(func, doc) KEYWORD_METHOD(METHNAME, func, 0, doc)
 272 #define NAMETH(func, doc) NOARG_METHOD(METHNAME, func, 0, doc)
 273 #define CMTH(func, doc) STD_METHOD(METHNAME, func, METH_CLASS, doc)
 274 #define KWCMTH(func, doc) KEYWORD_METHOD(METHNAME, func, METH_CLASS, doc)
 275 #define NACMTH(func, doc) NOARG_METHOD(METHNAME, func, METH_CLASS, doc)
 276 #define SMTH(func, doc) STD_METHOD(METHNAME, func, METH_STATIC, doc)
 277 #define KWSMTH(func, doc) KEYWORD_METHOD(METHNAME, func, METH_STATIC, doc)
 278 #define NASMTH(func, doc) NOARG_METHOD(METHNAME, func, METH_STATIC, doc)
 279
 280 /* Convenience wrappers for filling in `PyGetSetDef' tables, following Pyke
 281  * naming convention.  Define `GETSETNAME' locally as
 282  *
 283  *      #define GETSETNAME(op, name) foo##op##_##func
 284  *
 285  * around the get/set table.
 286  */
 287 #define GET(func, doc)                                                  \
 288   { #func, GETSETNAME(get, func), 0, doc },
 289 #define GETSET(func, doc)                                               \
 290   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 291
 292 /* Convenience wrappers for filling in `PyMemberDef' tables.  Define
 293  * `MEMBERSTRUCT' locally as
 294  *
 295  *      #define MEMBERSTRUCT foo_pyobj
 296  *
 297  * around the member table.
 298  */
 299 #define MEMRNM(name, ty, mem, f, doc)                                   \
 300   { #name, ty, offsetof(MEMBERSTRUCT, mem), f, doc },
 301 #define MEMBER(name, ty, f, doc) MEMRNM(name, ty, name, f, doc)
 302
 303 /* Wrappers for filling in pointers in a `PyTypeObject' structure, (a)
 304  * following Pyke naming convention, and (b) stripping `const' from the types
 305  * without losing type safety.
 306  */
 307 #define UNCONST_TYPE_SLOT(type, suffix, op, ty)                         \
 308   CONVERT_CAREFULLY(type *, const type *, op ty##_py##suffix)
 309 #define PYGETSET(ty) UNCONST_TYPE_SLOT(PyGetSetDef, getset, NOTHING, ty)
 310 #define PYMETHODS(ty) UNCONST_TYPE_SLOT(PyMethodDef, methods, NOTHING, ty)
 311 #define PYMEMBERS(ty) UNCONST_TYPE_SLOT(PyMemberDef, members, NOTHING, ty)
 312 #define PYNUMBER(ty) UNCONST_TYPE_SLOT(PyNumberMethods, number, &, ty)
 313 #define PYSEQUENCE(ty) UNCONST_TYPE_SLOT(PySequenceMethods, sequence, &, ty)
 314 #define PYMAPPING(ty) UNCONST_TYPE_SLOT(PyMappingMethods, mapping, &, ty)
 315 #define PYBUFFER(ty) UNCONST_TYPE_SLOT(PyBufferProcs, buffer, &, ty)
 316
 317 /*----- Populating modules ------------------------------------------------*/
 318
 319 extern PyObject *modname;
 320   /* The overall module name.  Set this with `PyString_FromString'. */
 321
 322 extern PyObject *home_module;
 323   /* The overall module object. */
 324
 325 extern PyObject *mkexc(PyObject */*mod*/, PyObject */*base*/,
 326                        const char */*name*/, const PyMethodDef */*methods*/);
 327   /* Make and return an exception class called NAME, which will end up in
 328    * module MOD (though it is not added at this time).  The new class is a
 329    * subclass of BASE.  Attach the METHODS to it.
 330    */
 331
 332 #define INSERT(name, ob) do {                                           \
 333   PyObject *_o = (PyObject *)(ob);                                      \
 334   Py_INCREF(_o);                                                        \
 335   PyModule_AddObject(mod, name, _o);                                    \
 336 } while (0)
 337   /* Insert a Python object OB into the module `mod' under the given NAME. */
 338
 339 /* Numeric constants. */
 340 struct nameval { const char *name; unsigned f; unsigned long value; };
 341 #define CF_SIGNED 1u
 342 extern void setconstants(PyObject *, const struct nameval *);
 343 #define CONST(x) { #x, (x) >= 0 ? 0 : CF_SIGNED, x }
 344 #define CONSTFLAG(f, x) { #x, f, x }
 345
 346 #define INSEXC(name, var, base, meth)                                   \
 347   INSERT(name, var = mkexc(mod, base, name, meth))
 348   /* Insert an exception class into the module `mod'; other arguments are as
 349    * for `mkexc'.
 350    */
 351
 352 /*----- Submodules --------------------------------------------------------*
 353  *
 354  * It's useful to split the Python module up into multiple source files, and
 355  * have each one contribute its definitions into the main module.
 356  *
 357  * Define a list-macro `MODULES' in the master header file naming the
 358  * submodules to be processed, and run
 359  *
 360  *      MODULES(DECLARE_MODINIT)
 361  *
 362  * to declare the interface functions.
 363  *
 364  * Each submodule FOO defines two functions: `FOO_pyinit' initializes types
 365  * (see `INITTYPE' above) and accumulates methods (`addmethods' below), while
 366  * `FOO_pyinsert' populates the module with additional definitions
 367  * (especially types, though also constants).
 368  *
 369  * The top-level module initialization should call `INIT_MODULES' before
 370  * creating the Python module, and `INSERT_MODULES' afterwards to make
 371  * everything work.
 372  */
 373
 374 extern void addmethods(const PyMethodDef *);
 375 extern PyMethodDef *donemethods(void);
 376   /* Accumulate method-table fragments, and return the combined table of all
 377    * of the fragments.
 378    */
 379
 380 #define DECLARE_MODINIT(m)                                              \
 381   extern void m##_pyinit(void);                                         \
 382   extern void m##_pyinsert(PyObject *);
 383   /* Declare submodule interface functions. */
 384
 385 #define DOMODINIT(m) m##_pyinit();
 386 #define DOMODINSERT(m) m##_pyinsert(mod);
 387 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 388 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 389   /* Top-level dispatch to the various submodules. */
 390
 391 /*----- Generic mapping support -------------------------------------------*/
 392
 393 /* Operations table.  ME is the mapping object throughout. */
 394 typedef struct gmap_ops {
 395   size_t isz;                           /* iterator size */
 396
 397   void *(*lookup)(PyObject *me, PyObject *key, unsigned *f);
 398     /* Lookup the KEY.  If it is found, return an entry pointer for it; if F
 399      * is not null, set *F nonzero.  Otherwise, if F is null, return a null
 400      * pointer (without setting a pending exception); if F is not null, then
 401      * set *F zero and return a fresh entry pointer.  Return null on a Python
 402      * exception (the caller will notice the difference.)
 403      */
 404
 405   void (*iter_init)(PyObject *me, void *i);
 406     /* Initialize an iterator at I. */
 407
 408   void *(*iter_next)(PyObject *me, void *i);
 409     /* Return an entry pointer for a different item, or null if all have been
 410      * visited.
 411      */
 412
 413   PyObject *(*entry_key)(PyObject *me, void *e);
 414     /* Return the key object for a mapping entry. */
 415
 416   PyObject *(*entry_value)(PyObject *me, void *e);
 417     /* Return the value object for a mapping entry. */
 418
 419   int (*set_entry)(PyObject *me, void *e, PyObject *val);
 420     /* Modify the entry by storing VAL in its place.  Return 0 on success,
 421      * or -1 on a Python error.
 422      */
 423
 424   int (*del_entry)(PyObject *me, void *e);
 425     /* Delete the entry.  (It may be necessary to delete a freshly allocated
 426      * entry, e.g., if `set_entry' failed.)  Return 0 on success, or -1 on a
 427      * Python error.
 428      */
 429 } gmap_ops;
 430
 431 /* The intrusion at the head of a mapping object. */
 432 #define GMAP_PYOBJ_HEAD                                                 \
 433   PyObject_HEAD                                                         \
 434   const gmap_ops *gmops;
 435
 436 typedef struct gmap_pyobj {
 437   GMAP_PYOBJ_HEAD
 438 } gmap_pyobj;
 439 #define GMAP_OPS(obj) (((gmap_pyobj *)(obj))->gmops)
 440   /* Discover the operations from a mapping object. */
 441
 442 /* Mapping methods. */
 443 #define GMAP_METMNAME(func) gmapmeth_##func
 444 #define GMAP_METH(func, doc) STD_METHOD(GMAP_METMNAME, func, 0, doc)
 445 #define GMAP_KWMETH(func, doc) KEYWORD_METHOD(GMAP_METMNAME, func, 0, doc)
 446 #define GMAP_NAMETH(func, doc) NOARG_METHOD(GMAP_METMNAME, func, 0, doc)
 447 #define GMAP_METHDECL(func, doc)                                        \
 448   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 449 #define GMAP_KWMETHDECL(func, doc)                                      \
 450   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 451 #define GMAP_NAMETHDECL(func, doc)                                      \
 452   extern PyObject *gmapmeth_##func(PyObject *);
 453
 454 #define GMAP_DOROMETHODS(METH, KWMETH, NAMETH)                          \
 455   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 456   NAMETH(keys,          "D.keys() -> LIST")                             \
 457   NAMETH(values,        "D.values() -> LIST")                           \
 458   NAMETH(items,         "D.items() -> LIST")                            \
 459   NAMETH(iterkeys,      "D.iterkeys() -> ITER")                         \
 460   NAMETH(itervalues,    "D.itervalues() -> ITER")                       \
 461   NAMETH(iteritems,     "D.iteritems() -> ITER")                        \
 462   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")
 463
 464 #define GMAP_DOMETHODS(METH, KWMETH, NAMETH)                            \
 465   GMAP_DOROMETHODS(METH, KWMETH, NAMETH)                                \
 466   NAMETH(clear,         "D.clear()")                                    \
 467   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 468   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 469   NAMETH(popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 470   KWMETH(update,        "D.update(MAP)")
 471
 472 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL, GMAP_NAMETHDECL)
 473 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH, GMAP_NAMETH)
 474 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH, GMAP_NAMETH)
 475
 476 /* Mapping protocol implementation. */
 477 extern Py_ssize_t gmap_pysize(PyObject *); /* for `mp_length' */
 478 extern PyObject *gmap_pyiter(PyObject *); /* for `tp_iter' */
 479 extern PyObject *gmap_pylookup(PyObject *, PyObject *); /* for `mp_subscript' */
 480 extern int gmap_pystore(PyObject *, PyObject *, PyObject *); /* for `mp_ass_subscript' */
 481 extern int gmap_pyhaskey(PyObject *, PyObject *); /* for `sq_contains' */
 482 extern const PySequenceMethods gmap_pysequence; /* for `tp_as_sequence' */
 483 extern const PyMethodDef gmapro_pymethods[]; /* read-only methods */
 484 extern const PyMethodDef gmap_pymethods[]; /* all the standard methods */
 485
 486 /*----- That's all, folks -------------------------------------------------*/
 487
 488 #ifdef __cplusplus
 489   }
 490 #endif
 491
 492 #endif