Include/abstract.h

   1 #ifndef Py_ABSTRACTOBJECT_H
   2 #define Py_ABSTRACTOBJECT_H
   3 #ifdef __cplusplus
   4 extern "C" {
   5 #endif
   6
   7 #ifdef PY_SSIZE_T_CLEAN
   8 #define PyObject_CallFunction _PyObject_CallFunction_SizeT
   9 #define PyObject_CallMethod _PyObject_CallMethod_SizeT
  10 #endif
  11
  12 /* Abstract Object Interface (many thanks to Jim Fulton) */
  13
  14 /*
  15    PROPOSAL: A Generic Python Object Interface for Python C Modules
  16
  17 Problem
  18
  19   Python modules written in C that must access Python objects must do
  20   so through routines whose interfaces are described by a set of
  21   include files.  Unfortunately, these routines vary according to the
  22   object accessed.  To use these routines, the C programmer must check
  23   the type of the object being used and must call a routine based on
  24   the object type.  For example, to access an element of a sequence,
  25   the programmer must determine whether the sequence is a list or a
  26   tuple:
  27
  28     if(is_tupleobject(o))
  29       e=gettupleitem(o,i)
  30     else if(is_listitem(o))
  31       e=getlistitem(o,i)
  32
  33   If the programmer wants to get an item from another type of object
  34   that provides sequence behavior, there is no clear way to do it
  35   correctly.
  36
  37   The persistent programmer may peruse object.h and find that the
  38   _typeobject structure provides a means of invoking up to (currently
  39   about) 41 special operators.  So, for example, a routine can get an
  40   item from any object that provides sequence behavior. However, to
  41   use this mechanism, the programmer must make their code dependent on
  42   the current Python implementation.
  43
  44   Also, certain semantics, especially memory management semantics, may
  45   differ by the type of object being used.  Unfortunately, these
  46   semantics are not clearly described in the current include files.
  47   An abstract interface providing more consistent semantics is needed.
  48
  49 Proposal
  50
  51   I propose the creation of a standard interface (with an associated
  52   library of routines and/or macros) for generically obtaining the
  53   services of Python objects.  This proposal can be viewed as one
  54   components of a Python C interface consisting of several components.
  55
  56   From the viewpoint of C access to Python services, we have (as
  57   suggested by Guido in off-line discussions):
  58
  59   - "Very high level layer": two or three functions that let you exec or
  60     eval arbitrary Python code given as a string in a module whose name is
  61     given, passing C values in and getting C values out using
  62     mkvalue/getargs style format strings.  This does not require the user
  63     to declare any variables of type "PyObject *".  This should be enough
  64     to write a simple application that gets Python code from the user,
  65     execs it, and returns the output or errors.  (Error handling must also
  66     be part of this API.)
  67
  68   - "Abstract objects layer": which is the subject of this proposal.
  69     It has many functions operating on objects, and lest you do many
  70     things from C that you can also write in Python, without going
  71     through the Python parser.
  72
  73   - "Concrete objects layer": This is the public type-dependent
  74     interface provided by the standard built-in types, such as floats,
  75     strings, and lists.  This interface exists and is currently
  76     documented by the collection of include files provided with the
  77     Python distributions.
  78
  79   From the point of view of Python accessing services provided by C
  80   modules:
  81
  82   - "Python module interface": this interface consist of the basic
  83     routines used to define modules and their members.  Most of the
  84     current extensions-writing guide deals with this interface.
  85
  86   - "Built-in object interface": this is the interface that a new
  87     built-in type must provide and the mechanisms and rules that a
  88     developer of a new built-in type must use and follow.
  89
  90   This proposal is a "first-cut" that is intended to spur
  91   discussion. See especially the lists of notes.
  92
  93   The Python C object interface will provide four protocols: object,
  94   numeric, sequence, and mapping.  Each protocol consists of a
  95   collection of related operations.  If an operation that is not
  96   provided by a particular type is invoked, then a standard exception,
  97   NotImplementedError is raised with a operation name as an argument.
  98   In addition, for convenience this interface defines a set of
  99   constructors for building objects of built-in types.  This is needed
 100   so new objects can be returned from C functions that otherwise treat
 101   objects generically.
 102
 103 Memory Management
 104
 105   For all of the functions described in this proposal, if a function
 106   retains a reference to a Python object passed as an argument, then the
 107   function will increase the reference count of the object.  It is
 108   unnecessary for the caller to increase the reference count of an
 109   argument in anticipation of the object's retention.
 110
 111   All Python objects returned from functions should be treated as new
 112   objects.  Functions that return objects assume that the caller will
 113   retain a reference and the reference count of the object has already
 114   been incremented to account for this fact.  A caller that does not
 115   retain a reference to an object that is returned from a function
 116   must decrement the reference count of the object (using
 117   DECREF(object)) to prevent memory leaks.
 118
 119   Note that the behavior mentioned here is different from the current
 120   behavior for some objects (e.g. lists and tuples) when certain
 121   type-specific routines are called directly (e.g. setlistitem).  The
 122   proposed abstraction layer will provide a consistent memory
 123   management interface, correcting for inconsistent behavior for some
 124   built-in types.
 125
 126 Protocols
 127
 128 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
 129
 130 /*  Object Protocol: */
 131
 132      /* Implemented elsewhere:
 133
 134      int PyObject_Print(PyObject *o, FILE *fp, int flags);
 135
 136          Print an object, o, on file, fp.  Returns -1 on
 137          error.  The flags argument is used to enable certain printing
 138          options. The only option currently supported is Py_Print_RAW.
 139
 140          (What should be said about Py_Print_RAW?)
 141
 142        */
 143
 144      /* Implemented elsewhere:
 145
 146      int PyObject_HasAttrString(PyObject *o, char *attr_name);
 147
 148          Returns 1 if o has the attribute attr_name, and 0 otherwise.
 149          This is equivalent to the Python expression:
 150          hasattr(o,attr_name).
 151
 152          This function always succeeds.
 153
 154        */
 155
 156      /* Implemented elsewhere:
 157
 158      PyObject* PyObject_GetAttrString(PyObject *o, char *attr_name);
 159
 160          Retrieve an attributed named attr_name form object o.
 161          Returns the attribute value on success, or NULL on failure.
 162          This is the equivalent of the Python expression: o.attr_name.
 163
 164        */
 165
 166      /* Implemented elsewhere:
 167
 168      int PyObject_HasAttr(PyObject *o, PyObject *attr_name);
 169
 170          Returns 1 if o has the attribute attr_name, and 0 otherwise.
 171          This is equivalent to the Python expression:
 172          hasattr(o,attr_name).
 173
 174          This function always succeeds.
 175
 176        */
 177
 178      /* Implemented elsewhere:
 179
 180      PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name);
 181
 182          Retrieve an attributed named attr_name form object o.
 183          Returns the attribute value on success, or NULL on failure.
 184          This is the equivalent of the Python expression: o.attr_name.
 185
 186        */
 187
 188
 189      /* Implemented elsewhere:
 190
 191      int PyObject_SetAttrString(PyObject *o, char *attr_name, PyObject *v);
 192
 193          Set the value of the attribute named attr_name, for object o,
 194          to the value, v. Returns -1 on failure.  This is
 195          the equivalent of the Python statement: o.attr_name=v.
 196
 197        */
 198
 199      /* Implemented elsewhere:
 200
 201      int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v);
 202
 203          Set the value of the attribute named attr_name, for object o,
 204          to the value, v. Returns -1 on failure.  This is
 205          the equivalent of the Python statement: o.attr_name=v.
 206
 207        */
 208
 209      /* implemented as a macro:
 210
 211      int PyObject_DelAttrString(PyObject *o, char *attr_name);
 212
 213          Delete attribute named attr_name, for object o. Returns
 214          -1 on failure.  This is the equivalent of the Python
 215          statement: del o.attr_name.
 216
 217        */
 218 #define  PyObject_DelAttrString(O,A) PyObject_SetAttrString((O),(A),NULL)
 219
 220      /* implemented as a macro:
 221
 222      int PyObject_DelAttr(PyObject *o, PyObject *attr_name);
 223
 224          Delete attribute named attr_name, for object o. Returns -1
 225          on failure.  This is the equivalent of the Python
 226          statement: del o.attr_name.
 227
 228        */
 229 #define  PyObject_DelAttr(O,A) PyObject_SetAttr((O),(A),NULL)
 230
 231      PyAPI_FUNC(int) PyObject_Cmp(PyObject *o1, PyObject *o2, int *result);
 232
 233        /*
 234          Compare the values of o1 and o2 using a routine provided by
 235          o1, if one exists, otherwise with a routine provided by o2.
 236          The result of the comparison is returned in result.  Returns
 237          -1 on failure.  This is the equivalent of the Python
 238          statement: result=cmp(o1,o2).
 239
 240        */
 241
 242      /* Implemented elsewhere:
 243
 244      int PyObject_Compare(PyObject *o1, PyObject *o2);
 245
 246          Compare the values of o1 and o2 using a routine provided by
 247          o1, if one exists, otherwise with a routine provided by o2.
 248          Returns the result of the comparison on success.  On error,
 249          the value returned is undefined. This is equivalent to the
 250          Python expression: cmp(o1,o2).
 251
 252        */
 253
 254      /* Implemented elsewhere:
 255
 256      PyObject *PyObject_Repr(PyObject *o);
 257
 258          Compute the string representation of object, o.  Returns the
 259          string representation on success, NULL on failure.  This is
 260          the equivalent of the Python expression: repr(o).
 261
 262          Called by the repr() built-in function and by reverse quotes.
 263
 264        */
 265
 266      /* Implemented elsewhere:
 267
 268      PyObject *PyObject_Str(PyObject *o);
 269
 270          Compute the string representation of object, o.  Returns the
 271          string representation on success, NULL on failure.  This is
 272          the equivalent of the Python expression: str(o).)
 273
 274          Called by the str() built-in function and by the print
 275          statement.
 276
 277        */
 278
 279      /* Implemented elsewhere:
 280
 281      PyObject *PyObject_Unicode(PyObject *o);
 282
 283          Compute the unicode representation of object, o.  Returns the
 284          unicode representation on success, NULL on failure.  This is
 285          the equivalent of the Python expression: unistr(o).)
 286
 287          Called by the unistr() built-in function.
 288
 289        */
 290
 291        /* Declared elsewhere
 292
 293      PyAPI_FUNC(int) PyCallable_Check(PyObject *o);
 294
 295          Determine if the object, o, is callable.  Return 1 if the
 296          object is callable and 0 otherwise.
 297
 298          This function always succeeds.
 299
 300        */
 301
 302
 303
 304      PyAPI_FUNC(PyObject *) PyObject_Call(PyObject *callable_object,
 305                                          PyObject *args, PyObject *kw);
 306
 307        /*
 308          Call a callable Python object, callable_object, with
 309          arguments and keywords arguments.  The 'args' argument can not be
 310          NULL, but the 'kw' argument can be NULL.
 311
 312        */
 313
 314      PyAPI_FUNC(PyObject *) PyObject_CallObject(PyObject *callable_object,
 315                                                PyObject *args);
 316
 317        /*
 318          Call a callable Python object, callable_object, with
 319          arguments given by the tuple, args.  If no arguments are
 320          needed, then args may be NULL.  Returns the result of the
 321          call on success, or NULL on failure.  This is the equivalent
 322          of the Python expression: apply(o,args).
 323
 324        */
 325
 326      PyAPI_FUNC(PyObject *) PyObject_CallFunction(PyObject *callable_object,
 327                                                  char *format, ...);
 328
 329        /*
 330          Call a callable Python object, callable_object, with a
 331          variable number of C arguments. The C arguments are described
 332          using a mkvalue-style format string. The format may be NULL,
 333          indicating that no arguments are provided.  Returns the
 334          result of the call on success, or NULL on failure.  This is
 335          the equivalent of the Python expression: apply(o,args).
 336
 337        */
 338
 339
 340      PyAPI_FUNC(PyObject *) PyObject_CallMethod(PyObject *o, char *m,
 341                                                char *format, ...);
 342
 343        /*
 344          Call the method named m of object o with a variable number of
 345          C arguments.  The C arguments are described by a mkvalue
 346          format string.  The format may be NULL, indicating that no
 347          arguments are provided. Returns the result of the call on
 348          success, or NULL on failure.  This is the equivalent of the
 349          Python expression: o.method(args).
 350        */
 351
 352      PyAPI_FUNC(PyObject *) _PyObject_CallFunction_SizeT(PyObject *callable,
 353                                                          char *format, ...);
 354      PyAPI_FUNC(PyObject *) _PyObject_CallMethod_SizeT(PyObject *o,
 355                                                        char *name,
 356                                                        char *format, ...);
 357
 358      PyAPI_FUNC(PyObject *) PyObject_CallFunctionObjArgs(PyObject *callable,
 359                                                         ...);
 360
 361        /*
 362          Call a callable Python object, callable_object, with a
 363          variable number of C arguments.  The C arguments are provided
 364          as PyObject * values, terminated by a NULL.  Returns the
 365          result of the call on success, or NULL on failure.  This is
 366          the equivalent of the Python expression: apply(o,args).
 367        */
 368
 369
 370      PyAPI_FUNC(PyObject *) PyObject_CallMethodObjArgs(PyObject *o,
 371                                                       PyObject *m, ...);
 372
 373        /*
 374          Call the method named m of object o with a variable number of
 375          C arguments.  The C arguments are provided as PyObject *
 376          values, terminated by NULL.  Returns the result of the call
 377          on success, or NULL on failure.  This is the equivalent of
 378          the Python expression: o.method(args).
 379        */
 380
 381
 382      /* Implemented elsewhere:
 383
 384      long PyObject_Hash(PyObject *o);
 385
 386          Compute and return the hash, hash_value, of an object, o.  On
 387          failure, return -1.  This is the equivalent of the Python
 388          expression: hash(o).
 389
 390        */
 391
 392
 393      /* Implemented elsewhere:
 394
 395      int PyObject_IsTrue(PyObject *o);
 396
 397          Returns 1 if the object, o, is considered to be true, 0 if o is
 398          considered to be false and -1 on failure. This is equivalent to the
 399          Python expression: not not o
 400
 401        */
 402
 403      /* Implemented elsewhere:
 404
 405      int PyObject_Not(PyObject *o);
 406
 407          Returns 0 if the object, o, is considered to be true, 1 if o is
 408          considered to be false and -1 on failure. This is equivalent to the
 409          Python expression: not o
 410
 411        */
 412
 413      PyAPI_FUNC(PyObject *) PyObject_Type(PyObject *o);
 414
 415        /*
 416          On success, returns a type object corresponding to the object
 417          type of object o. On failure, returns NULL.  This is
 418          equivalent to the Python expression: type(o).
 419        */
 420
 421      PyAPI_FUNC(Py_ssize_t) PyObject_Size(PyObject *o);
 422
 423        /*
 424          Return the size of object o.  If the object, o, provides
 425          both sequence and mapping protocols, the sequence size is
 426          returned. On error, -1 is returned.  This is the equivalent
 427          to the Python expression: len(o).
 428
 429        */
 430
 431        /* For DLL compatibility */
 432 #undef PyObject_Length
 433      PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o);
 434 #define PyObject_Length PyObject_Size
 435
 436      PyAPI_FUNC(Py_ssize_t) _PyObject_LengthHint(PyObject *o, Py_ssize_t);
 437
 438        /*
 439          Guess the size of object o using len(o) or o.__length_hint__().
 440          If neither of those return a non-negative value, then return the
 441          default value.  This function never fails. All exceptions are cleared.
 442        */
 443
 444      PyAPI_FUNC(PyObject *) PyObject_GetItem(PyObject *o, PyObject *key);
 445
 446        /*
 447          Return element of o corresponding to the object, key, or NULL
 448          on failure. This is the equivalent of the Python expression:
 449          o[key].
 450
 451        */
 452
 453      PyAPI_FUNC(int) PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v);
 454
 455        /*
 456          Map the object, key, to the value, v.  Returns
 457          -1 on failure.  This is the equivalent of the Python
 458          statement: o[key]=v.
 459        */
 460
 461      PyAPI_FUNC(int) PyObject_DelItemString(PyObject *o, char *key);
 462
 463        /*
 464          Remove the mapping for object, key, from the object *o.
 465          Returns -1 on failure.  This is equivalent to
 466          the Python statement: del o[key].
 467        */
 468
 469      PyAPI_FUNC(int) PyObject_DelItem(PyObject *o, PyObject *key);
 470
 471        /*
 472          Delete the mapping for key from *o.  Returns -1 on failure.
 473          This is the equivalent of the Python statement: del o[key].
 474        */
 475
 476      PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj,
 477                                           const char **buffer,
 478                                           Py_ssize_t *buffer_len);
 479
 480        /*
 481           Takes an arbitrary object which must support the (character,
 482           single segment) buffer interface and returns a pointer to a
 483           read-only memory location useable as character based input
 484           for subsequent processing.
 485
 486           0 is returned on success.  buffer and buffer_len are only
 487           set in case no error occurs. Otherwise, -1 is returned and
 488           an exception set.
 489
 490        */
 491
 492      PyAPI_FUNC(int) PyObject_CheckReadBuffer(PyObject *obj);
 493
 494       /*
 495           Checks whether an arbitrary object supports the (character,
 496           single segment) buffer interface.  Returns 1 on success, 0
 497           on failure.
 498
 499       */
 500
 501      PyAPI_FUNC(int) PyObject_AsReadBuffer(PyObject *obj,
 502                                           const void **buffer,
 503                                           Py_ssize_t *buffer_len);
 504
 505        /*
 506           Same as PyObject_AsCharBuffer() except that this API expects
 507           (readable, single segment) buffer interface and returns a
 508           pointer to a read-only memory location which can contain
 509           arbitrary data.
 510
 511           0 is returned on success.  buffer and buffer_len are only
 512           set in case no error occurrs.  Otherwise, -1 is returned and
 513           an exception set.
 514
 515        */
 516
 517      PyAPI_FUNC(int) PyObject_AsWriteBuffer(PyObject *obj,
 518                                            void **buffer,
 519                                            Py_ssize_t *buffer_len);
 520
 521        /*
 522           Takes an arbitrary object which must support the (writeable,
 523           single segment) buffer interface and returns a pointer to a
 524           writeable memory location in buffer of size buffer_len.
 525
 526           0 is returned on success.  buffer and buffer_len are only
 527           set in case no error occurrs. Otherwise, -1 is returned and
 528           an exception set.
 529
 530        */
 531
 532         /* new buffer API */
 533
 534 #define PyObject_CheckBuffer(obj) \
 535         (((obj)->ob_type->tp_as_buffer != NULL) &&                      \
 536          (PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_NEWBUFFER)) && \
 537          ((obj)->ob_type->tp_as_buffer->bf_getbuffer != NULL))
 538
 539         /* Return 1 if the getbuffer function is available, otherwise
 540            return 0 */
 541
 542      PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view,
 543                                         int flags);
 544
 545         /* This is a C-API version of the getbuffer function call.  It checks
 546            to make sure object has the required function pointer and issues the
 547            call.  Returns -1 and raises an error on failure and returns 0 on
 548            success
 549         */
 550
 551
 552      PyAPI_FUNC(void *) PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices);
 553
 554         /* Get the memory area pointed to by the indices for the buffer given.
 555            Note that view->ndim is the assumed size of indices
 556         */
 557
 558      PyAPI_FUNC(int) PyBuffer_SizeFromFormat(const char *);
 559
 560         /* Return the implied itemsize of the data-format area from a
 561            struct-style description */
 562
 563
 564
 565      PyAPI_FUNC(int) PyBuffer_ToContiguous(void *buf, Py_buffer *view,
 566                                            Py_ssize_t len, char fort);
 567
 568      PyAPI_FUNC(int) PyBuffer_FromContiguous(Py_buffer *view, void *buf,
 569                                              Py_ssize_t len, char fort);
 570
 571
 572         /* Copy len bytes of data from the contiguous chunk of memory
 573            pointed to by buf into the buffer exported by obj.  Return
 574            0 on success and return -1 and raise a PyBuffer_Error on
 575            error (i.e. the object does not have a buffer interface or
 576            it is not working).
 577
 578            If fort is 'F' and the object is multi-dimensional,
 579            then the data will be copied into the array in
 580            Fortran-style (first dimension varies the fastest).  If
 581            fort is 'C', then the data will be copied into the array
 582            in C-style (last dimension varies the fastest).  If fort
 583            is 'A', then it does not matter and the copy will be made
 584            in whatever way is more efficient.
 585
 586         */
 587
 588      PyAPI_FUNC(int) PyObject_CopyData(PyObject *dest, PyObject *src);
 589
 590         /* Copy the data from the src buffer to the buffer of destination
 591          */
 592
 593      PyAPI_FUNC(int) PyBuffer_IsContiguous(Py_buffer *view, char fort);
 594
 595
 596      PyAPI_FUNC(void) PyBuffer_FillContiguousStrides(int ndims,
 597                                                     Py_ssize_t *shape,
 598                                                     Py_ssize_t *strides,
 599                                                     int itemsize,
 600                                                     char fort);
 601
 602         /*  Fill the strides array with byte-strides of a contiguous
 603             (Fortran-style if fort is 'F' or C-style otherwise)
 604             array of the given shape with the given number of bytes
 605             per element.
 606         */
 607
 608      PyAPI_FUNC(int) PyBuffer_FillInfo(Py_buffer *view, PyObject *o, void *buf,
 609                                        Py_ssize_t len, int readonly,
 610                                        int flags);
 611
 612         /* Fills in a buffer-info structure correctly for an exporter
 613            that can only share a contiguous chunk of memory of
 614            "unsigned bytes" of the given length. Returns 0 on success
 615            and -1 (with raising an error) on error.
 616          */
 617
 618      PyAPI_FUNC(void) PyBuffer_Release(Py_buffer *view);
 619
 620        /* Releases a Py_buffer obtained from getbuffer ParseTuple's s*.
 621         */
 622
 623      PyAPI_FUNC(PyObject *) PyObject_Format(PyObject* obj,
 624                                             PyObject *format_spec);
 625        /*
 626          Takes an arbitrary object and returns the result of
 627          calling obj.__format__(format_spec).
 628        */
 629
 630 /* Iterators */
 631
 632      PyAPI_FUNC(PyObject *) PyObject_GetIter(PyObject *);
 633      /* Takes an object and returns an iterator for it.
 634         This is typically a new iterator but if the argument
 635         is an iterator, this returns itself. */
 636
 637 #define PyIter_Check(obj) \
 638     (PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_ITER) && \
 639      (obj)->ob_type->tp_iternext != NULL)
 640
 641      PyAPI_FUNC(PyObject *) PyIter_Next(PyObject *);
 642      /* Takes an iterator object and calls its tp_iternext slot,
 643         returning the next value.  If the iterator is exhausted,
 644         this returns NULL without setting an exception.
 645         NULL with an exception means an error occurred. */
 646
 647 /*  Number Protocol:*/
 648
 649      PyAPI_FUNC(int) PyNumber_Check(PyObject *o);
 650
 651        /*
 652          Returns 1 if the object, o, provides numeric protocols, and
 653          false otherwise.
 654
 655          This function always succeeds.
 656
 657        */
 658
 659      PyAPI_FUNC(PyObject *) PyNumber_Add(PyObject *o1, PyObject *o2);
 660
 661        /*
 662          Returns the result of adding o1 and o2, or null on failure.
 663          This is the equivalent of the Python expression: o1+o2.
 664
 665
 666        */
 667
 668      PyAPI_FUNC(PyObject *) PyNumber_Subtract(PyObject *o1, PyObject *o2);
 669
 670        /*
 671          Returns the result of subtracting o2 from o1, or null on
 672          failure.  This is the equivalent of the Python expression:
 673          o1-o2.
 674
 675        */
 676
 677      PyAPI_FUNC(PyObject *) PyNumber_Multiply(PyObject *o1, PyObject *o2);
 678
 679        /*
 680          Returns the result of multiplying o1 and o2, or null on
 681          failure.  This is the equivalent of the Python expression:
 682          o1*o2.
 683
 684
 685        */
 686
 687      PyAPI_FUNC(PyObject *) PyNumber_Divide(PyObject *o1, PyObject *o2);
 688
 689        /*
 690          Returns the result of dividing o1 by o2, or null on failure.
 691          This is the equivalent of the Python expression: o1/o2.
 692
 693
 694        */
 695
 696      PyAPI_FUNC(PyObject *) PyNumber_FloorDivide(PyObject *o1, PyObject *o2);
 697
 698        /*
 699          Returns the result of dividing o1 by o2 giving an integral result,
 700          or null on failure.
 701          This is the equivalent of the Python expression: o1//o2.
 702
 703
 704        */
 705
 706      PyAPI_FUNC(PyObject *) PyNumber_TrueDivide(PyObject *o1, PyObject *o2);
 707
 708        /*
 709          Returns the result of dividing o1 by o2 giving a float result,
 710          or null on failure.
 711          This is the equivalent of the Python expression: o1/o2.
 712
 713
 714        */
 715
 716      PyAPI_FUNC(PyObject *) PyNumber_Remainder(PyObject *o1, PyObject *o2);
 717
 718        /*
 719          Returns the remainder of dividing o1 by o2, or null on
 720          failure.  This is the equivalent of the Python expression:
 721          o1%o2.
 722
 723
 724        */
 725
 726      PyAPI_FUNC(PyObject *) PyNumber_Divmod(PyObject *o1, PyObject *o2);
 727
 728        /*
 729          See the built-in function divmod.  Returns NULL on failure.
 730          This is the equivalent of the Python expression:
 731          divmod(o1,o2).
 732
 733
 734        */
 735
 736      PyAPI_FUNC(PyObject *) PyNumber_Power(PyObject *o1, PyObject *o2,
 737                                           PyObject *o3);
 738
 739        /*
 740          See the built-in function pow.  Returns NULL on failure.
 741          This is the equivalent of the Python expression:
 742          pow(o1,o2,o3), where o3 is optional.
 743
 744        */
 745
 746      PyAPI_FUNC(PyObject *) PyNumber_Negative(PyObject *o);
 747
 748        /*
 749          Returns the negation of o on success, or null on failure.
 750          This is the equivalent of the Python expression: -o.
 751
 752        */
 753
 754      PyAPI_FUNC(PyObject *) PyNumber_Positive(PyObject *o);
 755
 756        /*
 757          Returns the (what?) of o on success, or NULL on failure.
 758          This is the equivalent of the Python expression: +o.
 759
 760        */
 761
 762      PyAPI_FUNC(PyObject *) PyNumber_Absolute(PyObject *o);
 763
 764        /*
 765          Returns the absolute value of o, or null on failure.  This is
 766          the equivalent of the Python expression: abs(o).
 767
 768        */
 769
 770      PyAPI_FUNC(PyObject *) PyNumber_Invert(PyObject *o);
 771
 772        /*
 773          Returns the bitwise negation of o on success, or NULL on
 774          failure.  This is the equivalent of the Python expression:
 775          ~o.
 776
 777
 778        */
 779
 780      PyAPI_FUNC(PyObject *) PyNumber_Lshift(PyObject *o1, PyObject *o2);
 781
 782        /*
 783          Returns the result of left shifting o1 by o2 on success, or
 784          NULL on failure.  This is the equivalent of the Python
 785          expression: o1 << o2.
 786
 787
 788        */
 789
 790      PyAPI_FUNC(PyObject *) PyNumber_Rshift(PyObject *o1, PyObject *o2);
 791
 792        /*
 793          Returns the result of right shifting o1 by o2 on success, or
 794          NULL on failure.  This is the equivalent of the Python
 795          expression: o1 >> o2.
 796
 797        */
 798
 799      PyAPI_FUNC(PyObject *) PyNumber_And(PyObject *o1, PyObject *o2);
 800
 801        /*
 802          Returns the result of bitwise and of o1 and o2 on success, or
 803          NULL on failure. This is the equivalent of the Python
 804          expression: o1&o2.
 805
 806
 807        */
 808
 809      PyAPI_FUNC(PyObject *) PyNumber_Xor(PyObject *o1, PyObject *o2);
 810
 811        /*
 812          Returns the bitwise exclusive or of o1 by o2 on success, or
 813          NULL on failure.  This is the equivalent of the Python
 814          expression: o1^o2.
 815
 816
 817        */
 818
 819      PyAPI_FUNC(PyObject *) PyNumber_Or(PyObject *o1, PyObject *o2);
 820
 821        /*
 822          Returns the result of bitwise or on o1 and o2 on success, or
 823          NULL on failure.  This is the equivalent of the Python
 824          expression: o1|o2.
 825
 826        */
 827
 828      /* Implemented elsewhere:
 829
 830      int PyNumber_Coerce(PyObject **p1, PyObject **p2);
 831
 832          This function takes the addresses of two variables of type
 833          PyObject*.
 834
 835          If the objects pointed to by *p1 and *p2 have the same type,
 836          increment their reference count and return 0 (success).
 837          If the objects can be converted to a common numeric type,
 838          replace *p1 and *p2 by their converted value (with 'new'
 839          reference counts), and return 0.
 840          If no conversion is possible, or if some other error occurs,
 841          return -1 (failure) and don't increment the reference counts.
 842          The call PyNumber_Coerce(&o1, &o2) is equivalent to the Python
 843          statement o1, o2 = coerce(o1, o2).
 844
 845        */
 846
 847 #define PyIndex_Check(obj) \
 848    ((obj)->ob_type->tp_as_number != NULL && \
 849     PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_INDEX) && \
 850     (obj)->ob_type->tp_as_number->nb_index != NULL)
 851
 852      PyAPI_FUNC(PyObject *) PyNumber_Index(PyObject *o);
 853
 854        /*
 855          Returns the object converted to a Python long or int
 856          or NULL with an error raised on failure.
 857        */
 858
 859      PyAPI_FUNC(Py_ssize_t) PyNumber_AsSsize_t(PyObject *o, PyObject *exc);
 860
 861        /*
 862          Returns the Integral instance converted to an int. The
 863          instance is expected to be int or long or have an __int__
 864          method. Steals integral's reference. error_format will be
 865          used to create the TypeError if integral isn't actually an
 866          Integral instance. error_format should be a format string
 867          that can accept a char* naming integral's type.
 868        */
 869
 870      PyAPI_FUNC(PyObject *) _PyNumber_ConvertIntegralToInt(
 871              PyObject *integral,
 872              const char* error_format);
 873
 874        /*
 875         Returns the object converted to Py_ssize_t by going through
 876         PyNumber_Index first.  If an overflow error occurs while
 877         converting the int-or-long to Py_ssize_t, then the second argument
 878         is the error-type to return.  If it is NULL, then the overflow error
 879         is cleared and the value is clipped.
 880        */
 881
 882      PyAPI_FUNC(PyObject *) PyNumber_Int(PyObject *o);
 883
 884        /*
 885          Returns the o converted to an integer object on success, or
 886          NULL on failure.  This is the equivalent of the Python
 887          expression: int(o).
 888
 889        */
 890
 891      PyAPI_FUNC(PyObject *) PyNumber_Long(PyObject *o);
 892
 893        /*
 894          Returns the o converted to a long integer object on success,
 895          or NULL on failure.  This is the equivalent of the Python
 896          expression: long(o).
 897
 898        */
 899
 900      PyAPI_FUNC(PyObject *) PyNumber_Float(PyObject *o);
 901
 902        /*
 903          Returns the o converted to a float object on success, or NULL
 904          on failure.  This is the equivalent of the Python expression:
 905          float(o).
 906        */
 907
 908 /*  In-place variants of (some of) the above number protocol functions */
 909
 910      PyAPI_FUNC(PyObject *) PyNumber_InPlaceAdd(PyObject *o1, PyObject *o2);
 911
 912        /*
 913          Returns the result of adding o2 to o1, possibly in-place, or null
 914          on failure.  This is the equivalent of the Python expression:
 915          o1 += o2.
 916
 917        */
 918
 919      PyAPI_FUNC(PyObject *) PyNumber_InPlaceSubtract(PyObject *o1, PyObject *o2);
 920
 921        /*
 922          Returns the result of subtracting o2 from o1, possibly in-place or
 923          null on failure.  This is the equivalent of the Python expression:
 924          o1 -= o2.
 925
 926        */
 927
 928      PyAPI_FUNC(PyObject *) PyNumber_InPlaceMultiply(PyObject *o1, PyObject *o2);
 929
 930        /*
 931          Returns the result of multiplying o1 by o2, possibly in-place, or
 932          null on failure.  This is the equivalent of the Python expression:
 933          o1 *= o2.
 934
 935        */
 936
 937      PyAPI_FUNC(PyObject *) PyNumber_InPlaceDivide(PyObject *o1, PyObject *o2);
 938
 939        /*
 940          Returns the result of dividing o1 by o2, possibly in-place, or null
 941          on failure.  This is the equivalent of the Python expression:
 942          o1 /= o2.
 943
 944        */
 945
 946      PyAPI_FUNC(PyObject *) PyNumber_InPlaceFloorDivide(PyObject *o1,
 947                                                        PyObject *o2);
 948
 949        /*
 950          Returns the result of dividing o1 by o2 giving an integral result,
 951          possibly in-place, or null on failure.
 952          This is the equivalent of the Python expression:
 953          o1 /= o2.
 954
 955        */
 956
 957      PyAPI_FUNC(PyObject *) PyNumber_InPlaceTrueDivide(PyObject *o1,
 958                                                       PyObject *o2);
 959
 960        /*
 961          Returns the result of dividing o1 by o2 giving a float result,
 962          possibly in-place, or null on failure.
 963          This is the equivalent of the Python expression:
 964          o1 /= o2.
 965
 966        */
 967
 968      PyAPI_FUNC(PyObject *) PyNumber_InPlaceRemainder(PyObject *o1, PyObject *o2);
 969
 970        /*
 971          Returns the remainder of dividing o1 by o2, possibly in-place, or
 972          null on failure.  This is the equivalent of the Python expression:
 973          o1 %= o2.
 974
 975        */
 976
 977      PyAPI_FUNC(PyObject *) PyNumber_InPlacePower(PyObject *o1, PyObject *o2,
 978                                                  PyObject *o3);
 979
 980        /*
 981          Returns the result of raising o1 to the power of o2, possibly
 982          in-place, or null on failure.  This is the equivalent of the Python
 983          expression: o1 **= o2, or pow(o1, o2, o3) if o3 is present.
 984
 985        */
 986
 987      PyAPI_FUNC(PyObject *) PyNumber_InPlaceLshift(PyObject *o1, PyObject *o2);
 988
 989        /*
 990          Returns the result of left shifting o1 by o2, possibly in-place, or
 991          null on failure.  This is the equivalent of the Python expression:
 992          o1 <<= o2.
 993
 994        */
 995
 996      PyAPI_FUNC(PyObject *) PyNumber_InPlaceRshift(PyObject *o1, PyObject *o2);
 997
 998        /*
 999          Returns the result of right shifting o1 by o2, possibly in-place or
1000          null on failure.  This is the equivalent of the Python expression:
1001          o1 >>= o2.
1002
1003        */
1004
1005      PyAPI_FUNC(PyObject *) PyNumber_InPlaceAnd(PyObject *o1, PyObject *o2);
1006
1007        /*
1008          Returns the result of bitwise and of o1 and o2, possibly in-place,
1009          or null on failure. This is the equivalent of the Python
1010          expression: o1 &= o2.
1011
1012        */
1013
1014      PyAPI_FUNC(PyObject *) PyNumber_InPlaceXor(PyObject *o1, PyObject *o2);
1015
1016        /*
1017          Returns the bitwise exclusive or of o1 by o2, possibly in-place, or
1018          null on failure.  This is the equivalent of the Python expression:
1019          o1 ^= o2.
1020
1021        */
1022
1023      PyAPI_FUNC(PyObject *) PyNumber_InPlaceOr(PyObject *o1, PyObject *o2);
1024
1025        /*
1026          Returns the result of bitwise or of o1 and o2, possibly in-place,
1027          or null on failure.  This is the equivalent of the Python
1028          expression: o1 |= o2.
1029
1030        */
1031
1032
1033      PyAPI_FUNC(PyObject *) PyNumber_ToBase(PyObject *n, int base);
1034
1035        /*
1036          Returns the integer n converted to a string with a base, with a base
1037          marker of 0b, 0o or 0x prefixed if applicable.
1038          If n is not an int object, it is converted with PyNumber_Index first.
1039        */
1040
1041
1042 /*  Sequence protocol:*/
1043
1044      PyAPI_FUNC(int) PySequence_Check(PyObject *o);
1045
1046        /*
1047          Return 1 if the object provides sequence protocol, and zero
1048          otherwise.
1049
1050          This function always succeeds.
1051
1052        */
1053
1054      PyAPI_FUNC(Py_ssize_t) PySequence_Size(PyObject *o);
1055
1056        /*
1057          Return the size of sequence object o, or -1 on failure.
1058
1059        */
1060
1061        /* For DLL compatibility */
1062 #undef PySequence_Length
1063      PyAPI_FUNC(Py_ssize_t) PySequence_Length(PyObject *o);
1064 #define PySequence_Length PySequence_Size
1065
1066
1067      PyAPI_FUNC(PyObject *) PySequence_Concat(PyObject *o1, PyObject *o2);
1068
1069        /*
1070          Return the concatenation of o1 and o2 on success, and NULL on
1071          failure.   This is the equivalent of the Python
1072          expression: o1+o2.
1073
1074        */
1075
1076      PyAPI_FUNC(PyObject *) PySequence_Repeat(PyObject *o, Py_ssize_t count);
1077
1078        /*
1079          Return the result of repeating sequence object o count times,
1080          or NULL on failure.  This is the equivalent of the Python
1081          expression: o1*count.
1082
1083        */
1084
1085      PyAPI_FUNC(PyObject *) PySequence_GetItem(PyObject *o, Py_ssize_t i);
1086
1087        /*
1088          Return the ith element of o, or NULL on failure. This is the
1089          equivalent of the Python expression: o[i].
1090        */
1091
1092      PyAPI_FUNC(PyObject *) PySequence_GetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2);
1093
1094        /*
1095          Return the slice of sequence object o between i1 and i2, or
1096          NULL on failure. This is the equivalent of the Python
1097          expression: o[i1:i2].
1098
1099        */
1100
1101      PyAPI_FUNC(int) PySequence_SetItem(PyObject *o, Py_ssize_t i, PyObject *v);
1102
1103        /*
1104          Assign object v to the ith element of o.  Returns
1105          -1 on failure.  This is the equivalent of the Python
1106          statement: o[i]=v.
1107
1108        */
1109
1110      PyAPI_FUNC(int) PySequence_DelItem(PyObject *o, Py_ssize_t i);
1111
1112        /*
1113          Delete the ith element of object v.  Returns
1114          -1 on failure.  This is the equivalent of the Python
1115          statement: del o[i].
1116        */
1117
1118      PyAPI_FUNC(int) PySequence_SetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2,
1119                                         PyObject *v);
1120
1121        /*
1122          Assign the sequence object, v, to the slice in sequence
1123          object, o, from i1 to i2.  Returns -1 on failure. This is the
1124          equivalent of the Python statement: o[i1:i2]=v.
1125        */
1126
1127      PyAPI_FUNC(int) PySequence_DelSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2);
1128
1129        /*
1130          Delete the slice in sequence object, o, from i1 to i2.
1131          Returns -1 on failure. This is the equivalent of the Python
1132          statement: del o[i1:i2].
1133        */
1134
1135      PyAPI_FUNC(PyObject *) PySequence_Tuple(PyObject *o);
1136
1137        /*
1138          Returns the sequence, o, as a tuple on success, and NULL on failure.
1139          This is equivalent to the Python expression: tuple(o)
1140        */
1141
1142
1143      PyAPI_FUNC(PyObject *) PySequence_List(PyObject *o);
1144        /*
1145          Returns the sequence, o, as a list on success, and NULL on failure.
1146          This is equivalent to the Python expression: list(o)
1147        */
1148
1149      PyAPI_FUNC(PyObject *) PySequence_Fast(PyObject *o, const char* m);
1150        /*
1151          Returns the sequence, o, as a tuple, unless it's already a
1152          tuple or list.  Use PySequence_Fast_GET_ITEM to access the
1153          members of this list, and PySequence_Fast_GET_SIZE to get its length.
1154
1155          Returns NULL on failure.  If the object does not support iteration,
1156          raises a TypeError exception with m as the message text.
1157        */
1158
1159 #define PySequence_Fast_GET_SIZE(o) \
1160         (PyList_Check(o) ? PyList_GET_SIZE(o) : PyTuple_GET_SIZE(o))
1161        /*
1162          Return the size of o, assuming that o was returned by
1163          PySequence_Fast and is not NULL.
1164        */
1165
1166 #define PySequence_Fast_GET_ITEM(o, i)\
1167      (PyList_Check(o) ? PyList_GET_ITEM(o, i) : PyTuple_GET_ITEM(o, i))
1168        /*
1169          Return the ith element of o, assuming that o was returned by
1170          PySequence_Fast, and that i is within bounds.
1171        */
1172
1173 #define PySequence_ITEM(o, i)\
1174         ( Py_TYPE(o)->tp_as_sequence->sq_item(o, i) )
1175        /* Assume tp_as_sequence and sq_item exist and that i does not
1176           need to be corrected for a negative index
1177        */
1178
1179 #define PySequence_Fast_ITEMS(sf) \
1180         (PyList_Check(sf) ? ((PyListObject *)(sf))->ob_item \
1181                           : ((PyTupleObject *)(sf))->ob_item)
1182         /* Return a pointer to the underlying item array for
1183            an object retured by PySequence_Fast */
1184
1185      PyAPI_FUNC(Py_ssize_t) PySequence_Count(PyObject *o, PyObject *value);
1186
1187        /*
1188          Return the number of occurrences on value on o, that is,
1189          return the number of keys for which o[key]==value.  On
1190          failure, return -1.  This is equivalent to the Python
1191          expression: o.count(value).
1192        */
1193
1194      PyAPI_FUNC(int) PySequence_Contains(PyObject *seq, PyObject *ob);
1195        /*
1196          Return -1 if error; 1 if ob in seq; 0 if ob not in seq.
1197          Use __contains__ if possible, else _PySequence_IterSearch().
1198        */
1199
1200 #define PY_ITERSEARCH_COUNT    1
1201 #define PY_ITERSEARCH_INDEX    2
1202 #define PY_ITERSEARCH_CONTAINS 3
1203      PyAPI_FUNC(Py_ssize_t) _PySequence_IterSearch(PyObject *seq,
1204                                         PyObject *obj, int operation);
1205         /*
1206           Iterate over seq.  Result depends on the operation:
1207           PY_ITERSEARCH_COUNT:  return # of times obj appears in seq; -1 if
1208                 error.
1209           PY_ITERSEARCH_INDEX:  return 0-based index of first occurrence of
1210                 obj in seq; set ValueError and return -1 if none found;
1211                 also return -1 on error.
1212           PY_ITERSEARCH_CONTAINS:  return 1 if obj in seq, else 0; -1 on
1213                 error.
1214         */
1215
1216 /* For DLL-level backwards compatibility */
1217 #undef PySequence_In
1218      PyAPI_FUNC(int) PySequence_In(PyObject *o, PyObject *value);
1219
1220 /* For source-level backwards compatibility */
1221 #define PySequence_In PySequence_Contains
1222
1223        /*
1224          Determine if o contains value.  If an item in o is equal to
1225          X, return 1, otherwise return 0.  On error, return -1.  This
1226          is equivalent to the Python expression: value in o.
1227        */
1228
1229      PyAPI_FUNC(Py_ssize_t) PySequence_Index(PyObject *o, PyObject *value);
1230
1231        /*
1232          Return the first index for which o[i]=value.  On error,
1233          return -1.    This is equivalent to the Python
1234          expression: o.index(value).
1235        */
1236
1237 /* In-place versions of some of the above Sequence functions. */
1238
1239      PyAPI_FUNC(PyObject *) PySequence_InPlaceConcat(PyObject *o1, PyObject *o2);
1240
1241        /*
1242          Append o2 to o1, in-place when possible. Return the resulting
1243          object, which could be o1, or NULL on failure.  This is the
1244          equivalent of the Python expression: o1 += o2.
1245
1246        */
1247
1248      PyAPI_FUNC(PyObject *) PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count);
1249
1250        /*
1251          Repeat o1 by count, in-place when possible. Return the resulting
1252          object, which could be o1, or NULL on failure.  This is the
1253          equivalent of the Python expression: o1 *= count.
1254
1255        */
1256
1257 /*  Mapping protocol:*/
1258
1259      PyAPI_FUNC(int) PyMapping_Check(PyObject *o);
1260
1261        /*
1262          Return 1 if the object provides mapping protocol, and zero
1263          otherwise.
1264
1265          This function always succeeds.
1266        */
1267
1268      PyAPI_FUNC(Py_ssize_t) PyMapping_Size(PyObject *o);
1269
1270        /*
1271          Returns the number of keys in object o on success, and -1 on
1272          failure.  For objects that do not provide sequence protocol,
1273          this is equivalent to the Python expression: len(o).
1274        */
1275
1276        /* For DLL compatibility */
1277 #undef PyMapping_Length
1278      PyAPI_FUNC(Py_ssize_t) PyMapping_Length(PyObject *o);
1279 #define PyMapping_Length PyMapping_Size
1280
1281
1282      /* implemented as a macro:
1283
1284      int PyMapping_DelItemString(PyObject *o, char *key);
1285
1286          Remove the mapping for object, key, from the object *o.
1287          Returns -1 on failure.  This is equivalent to
1288          the Python statement: del o[key].
1289        */
1290 #define PyMapping_DelItemString(O,K) PyObject_DelItemString((O),(K))
1291
1292      /* implemented as a macro:
1293
1294      int PyMapping_DelItem(PyObject *o, PyObject *key);
1295
1296          Remove the mapping for object, key, from the object *o.
1297          Returns -1 on failure.  This is equivalent to
1298          the Python statement: del o[key].
1299        */
1300 #define PyMapping_DelItem(O,K) PyObject_DelItem((O),(K))
1301
1302      PyAPI_FUNC(int) PyMapping_HasKeyString(PyObject *o, char *key);
1303
1304        /*
1305          On success, return 1 if the mapping object has the key, key,
1306          and 0 otherwise.  This is equivalent to the Python expression:
1307          o.has_key(key).
1308
1309          This function always succeeds.
1310        */
1311
1312      PyAPI_FUNC(int) PyMapping_HasKey(PyObject *o, PyObject *key);
1313
1314        /*
1315          Return 1 if the mapping object has the key, key,
1316          and 0 otherwise.  This is equivalent to the Python expression:
1317          o.has_key(key).
1318
1319          This function always succeeds.
1320
1321        */
1322
1323      /* Implemented as macro:
1324
1325      PyObject *PyMapping_Keys(PyObject *o);
1326
1327          On success, return a list of the keys in object o.  On
1328          failure, return NULL. This is equivalent to the Python
1329          expression: o.keys().
1330        */
1331 #define PyMapping_Keys(O) PyObject_CallMethod(O,"keys",NULL)
1332
1333      /* Implemented as macro:
1334
1335      PyObject *PyMapping_Values(PyObject *o);
1336
1337          On success, return a list of the values in object o.  On
1338          failure, return NULL. This is equivalent to the Python
1339          expression: o.values().
1340        */
1341 #define PyMapping_Values(O) PyObject_CallMethod(O,"values",NULL)
1342
1343      /* Implemented as macro:
1344
1345      PyObject *PyMapping_Items(PyObject *o);
1346
1347          On success, return a list of the items in object o, where
1348          each item is a tuple containing a key-value pair.  On
1349          failure, return NULL. This is equivalent to the Python
1350          expression: o.items().
1351
1352        */
1353 #define PyMapping_Items(O) PyObject_CallMethod(O,"items",NULL)
1354
1355      PyAPI_FUNC(PyObject *) PyMapping_GetItemString(PyObject *o, char *key);
1356
1357        /*
1358          Return element of o corresponding to the object, key, or NULL
1359          on failure. This is the equivalent of the Python expression:
1360          o[key].
1361        */
1362
1363      PyAPI_FUNC(int) PyMapping_SetItemString(PyObject *o, char *key,
1364                                             PyObject *value);
1365
1366        /*
1367          Map the object, key, to the value, v.  Returns
1368          -1 on failure.  This is the equivalent of the Python
1369          statement: o[key]=v.
1370       */
1371
1372
1373 PyAPI_FUNC(int) PyObject_IsInstance(PyObject *object, PyObject *typeorclass);
1374       /* isinstance(object, typeorclass) */
1375
1376 PyAPI_FUNC(int) PyObject_IsSubclass(PyObject *object, PyObject *typeorclass);
1377       /* issubclass(object, typeorclass) */
1378
1379
1380 PyAPI_FUNC(int) _PyObject_RealIsInstance(PyObject *inst, PyObject *cls);
1381
1382 PyAPI_FUNC(int) _PyObject_RealIsSubclass(PyObject *derived, PyObject *cls);
1383
1384
1385 #ifdef __cplusplus
1386 }
1387 #endif
1388 #endif /* Py_ABSTRACTOBJECT_H */