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Diffstat (limited to 'Include/abstract.h')
| -rw-r--r-- | Include/abstract.h | 1742 |
1 files changed, 730 insertions, 1012 deletions
diff --git a/Include/abstract.h b/Include/abstract.h index 7d137a22bf..f7d7dcc1da 100644 --- a/Include/abstract.h +++ b/Include/abstract.h @@ -1,1355 +1,1073 @@ +/* Abstract Object Interface (many thanks to Jim Fulton) */ + #ifndef Py_ABSTRACTOBJECT_H #define Py_ABSTRACTOBJECT_H #ifdef __cplusplus extern "C" { #endif -#ifdef PY_SSIZE_T_CLEAN -#define PyObject_CallFunction _PyObject_CallFunction_SizeT -#define PyObject_CallMethod _PyObject_CallMethod_SizeT -#ifndef Py_LIMITED_API -#define _PyObject_CallMethodId _PyObject_CallMethodId_SizeT -#endif /* !Py_LIMITED_API */ -#endif +/* === Object Protocol ================================================== */ -/* Abstract Object Interface (many thanks to Jim Fulton) */ +/* Implemented elsewhere: -/* - PROPOSAL: A Generic Python Object Interface for Python C Modules - -Problem - - Python modules written in C that must access Python objects must do - so through routines whose interfaces are described by a set of - include files. Unfortunately, these routines vary according to the - object accessed. To use these routines, the C programmer must check - the type of the object being used and must call a routine based on - the object type. For example, to access an element of a sequence, - the programmer must determine whether the sequence is a list or a - tuple: - - if(is_tupleobject(o)) - e=gettupleitem(o,i) - else if(is_listitem(o)) - e=getlistitem(o,i) - - If the programmer wants to get an item from another type of object - that provides sequence behavior, there is no clear way to do it - correctly. - - The persistent programmer may peruse object.h and find that the - _typeobject structure provides a means of invoking up to (currently - about) 41 special operators. So, for example, a routine can get an - item from any object that provides sequence behavior. However, to - use this mechanism, the programmer must make their code dependent on - the current Python implementation. - - Also, certain semantics, especially memory management semantics, may - differ by the type of object being used. Unfortunately, these - semantics are not clearly described in the current include files. - An abstract interface providing more consistent semantics is needed. - -Proposal - - I propose the creation of a standard interface (with an associated - library of routines and/or macros) for generically obtaining the - services of Python objects. This proposal can be viewed as one - components of a Python C interface consisting of several components. + int PyObject_Print(PyObject *o, FILE *fp, int flags); - From the viewpoint of C access to Python services, we have (as - suggested by Guido in off-line discussions): + Print an object 'o' on file 'fp'. Returns -1 on error. The flags argument + is used to enable certain printing options. The only option currently + supported is Py_Print_RAW. - - "Very high level layer": two or three functions that let you exec or - eval arbitrary Python code given as a string in a module whose name is - given, passing C values in and getting C values out using - mkvalue/getargs style format strings. This does not require the user - to declare any variables of type "PyObject *". This should be enough - to write a simple application that gets Python code from the user, - execs it, and returns the output or errors. (Error handling must also - be part of this API.) + (What should be said about Py_Print_RAW?). */ - - "Abstract objects layer": which is the subject of this proposal. - It has many functions operating on objects, and lest you do many - things from C that you can also write in Python, without going - through the Python parser. - - "Concrete objects layer": This is the public type-dependent - interface provided by the standard built-in types, such as floats, - strings, and lists. This interface exists and is currently - documented by the collection of include files provided with the - Python distributions. +/* Implemented elsewhere: - From the point of view of Python accessing services provided by C - modules: + int PyObject_HasAttrString(PyObject *o, const char *attr_name); - - "Python module interface": this interface consist of the basic - routines used to define modules and their members. Most of the - current extensions-writing guide deals with this interface. + Returns 1 if object 'o' has the attribute attr_name, and 0 otherwise. - - "Built-in object interface": this is the interface that a new - built-in type must provide and the mechanisms and rules that a - developer of a new built-in type must use and follow. + This is equivalent to the Python expression: hasattr(o,attr_name). - This proposal is a "first-cut" that is intended to spur - discussion. See especially the lists of notes. + This function always succeeds. */ - The Python C object interface will provide four protocols: object, - numeric, sequence, and mapping. Each protocol consists of a - collection of related operations. If an operation that is not - provided by a particular type is invoked, then a standard exception, - NotImplementedError is raised with an operation name as an argument. - In addition, for convenience this interface defines a set of - constructors for building objects of built-in types. This is needed - so new objects can be returned from C functions that otherwise treat - objects generically. -Memory Management +/* Implemented elsewhere: - For all of the functions described in this proposal, if a function - retains a reference to a Python object passed as an argument, then the - function will increase the reference count of the object. It is - unnecessary for the caller to increase the reference count of an - argument in anticipation of the object's retention. + PyObject* PyObject_GetAttrString(PyObject *o, const char *attr_name); - All Python objects returned from functions should be treated as new - objects. Functions that return objects assume that the caller will - retain a reference and the reference count of the object has already - been incremented to account for this fact. A caller that does not - retain a reference to an object that is returned from a function - must decrement the reference count of the object (using - DECREF(object)) to prevent memory leaks. + Retrieve an attributed named attr_name form object o. + Returns the attribute value on success, or NULL on failure. - Note that the behavior mentioned here is different from the current - behavior for some objects (e.g. lists and tuples) when certain - type-specific routines are called directly (e.g. setlistitem). The - proposed abstraction layer will provide a consistent memory - management interface, correcting for inconsistent behavior for some - built-in types. + This is the equivalent of the Python expression: o.attr_name. */ -Protocols -xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/ +/* Implemented elsewhere: -/* Object Protocol: */ + int PyObject_HasAttr(PyObject *o, PyObject *attr_name); - /* Implemented elsewhere: + Returns 1 if o has the attribute attr_name, and 0 otherwise. - int PyObject_Print(PyObject *o, FILE *fp, int flags); + This is equivalent to the Python expression: hasattr(o,attr_name). - Print an object, o, on file, fp. Returns -1 on - error. The flags argument is used to enable certain printing - options. The only option currently supported is Py_Print_RAW. + This function always succeeds. */ - (What should be said about Py_Print_RAW?) +/* Implemented elsewhere: - */ + PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name); - /* Implemented elsewhere: + Retrieve an attributed named 'attr_name' form object 'o'. + Returns the attribute value on success, or NULL on failure. - int PyObject_HasAttrString(PyObject *o, const char *attr_name); + This is the equivalent of the Python expression: o.attr_name. */ - Returns 1 if o has the attribute attr_name, and 0 otherwise. - This is equivalent to the Python expression: - hasattr(o,attr_name). - This function always succeeds. +/* Implemented elsewhere: - */ + int PyObject_SetAttrString(PyObject *o, const char *attr_name, PyObject *v); - /* Implemented elsewhere: + Set the value of the attribute named attr_name, for object 'o', + to the value 'v'. Raise an exception and return -1 on failure; return 0 on + success. - PyObject* PyObject_GetAttrString(PyObject *o, const char *attr_name); + This is the equivalent of the Python statement o.attr_name=v. */ - Retrieve an attributed named attr_name form object o. - Returns the attribute value on success, or NULL on failure. - This is the equivalent of the Python expression: o.attr_name. - */ +/* Implemented elsewhere: - /* Implemented elsewhere: + int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v); - int PyObject_HasAttr(PyObject *o, PyObject *attr_name); + Set the value of the attribute named attr_name, for object 'o', to the value + 'v'. an exception and return -1 on failure; return 0 on success. - Returns 1 if o has the attribute attr_name, and 0 otherwise. - This is equivalent to the Python expression: - hasattr(o,attr_name). + This is the equivalent of the Python statement o.attr_name=v. */ - This function always succeeds. +/* Implemented as a macro: - */ + int PyObject_DelAttrString(PyObject *o, const char *attr_name); - /* Implemented elsewhere: + Delete attribute named attr_name, for object o. Returns + -1 on failure. - PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name); + This is the equivalent of the Python statement: del o.attr_name. */ +#define PyObject_DelAttrString(O,A) PyObject_SetAttrString((O),(A), NULL) - Retrieve an attributed named attr_name form object o. - Returns the attribute value on success, or NULL on failure. - This is the equivalent of the Python expression: o.attr_name. - */ +/* Implemented as a macro: + int PyObject_DelAttr(PyObject *o, PyObject *attr_name); - /* Implemented elsewhere: + Delete attribute named attr_name, for object o. Returns -1 + on failure. This is the equivalent of the Python + statement: del o.attr_name. */ +#define PyObject_DelAttr(O,A) PyObject_SetAttr((O),(A), NULL) - int PyObject_SetAttrString(PyObject *o, const char *attr_name, PyObject *v); - Set the value of the attribute named attr_name, for object o, - to the value v. Raise an exception and return -1 on failure; return 0 on - success. This is the equivalent of the Python statement o.attr_name=v. +/* Implemented elsewhere: - */ + PyObject *PyObject_Repr(PyObject *o); - /* Implemented elsewhere: + Compute the string representation of object 'o'. Returns the + string representation on success, NULL on failure. - int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v); + This is the equivalent of the Python expression: repr(o). - Set the value of the attribute named attr_name, for object o, - to the value v. Raise an exception and return -1 on failure; return 0 on - success. This is the equivalent of the Python statement o.attr_name=v. + Called by the repr() built-in function. */ - */ - /* implemented as a macro: +/* Implemented elsewhere: - int PyObject_DelAttrString(PyObject *o, const char *attr_name); + PyObject *PyObject_Str(PyObject *o); - Delete attribute named attr_name, for object o. Returns - -1 on failure. This is the equivalent of the Python - statement: del o.attr_name. + Compute the string representation of object, o. Returns the + string representation on success, NULL on failure. - */ -#define PyObject_DelAttrString(O,A) PyObject_SetAttrString((O),(A),NULL) + This is the equivalent of the Python expression: str(o). - /* implemented as a macro: + Called by the str() and print() built-in functions. */ - int PyObject_DelAttr(PyObject *o, PyObject *attr_name); - Delete attribute named attr_name, for object o. Returns -1 - on failure. This is the equivalent of the Python - statement: del o.attr_name. +/* Declared elsewhere - */ -#define PyObject_DelAttr(O,A) PyObject_SetAttr((O),(A),NULL) + PyAPI_FUNC(int) PyCallable_Check(PyObject *o); - /* Implemented elsewhere: + Determine if the object, o, is callable. Return 1 if the object is callable + and 0 otherwise. - PyObject *PyObject_Repr(PyObject *o); + This function always succeeds. */ - Compute the string representation of object, o. Returns the - string representation on success, NULL on failure. This is - the equivalent of the Python expression: repr(o). - Called by the repr() built-in function. +#ifdef PY_SSIZE_T_CLEAN +# define PyObject_CallFunction _PyObject_CallFunction_SizeT +# define PyObject_CallMethod _PyObject_CallMethod_SizeT +# ifndef Py_LIMITED_API +# define _PyObject_CallMethodId _PyObject_CallMethodId_SizeT +# endif /* !Py_LIMITED_API */ +#endif - */ - /* Implemented elsewhere: +/* Call a callable Python object 'callable' with arguments given by the + tuple 'args' and keywords arguments given by the dictionary 'kwargs'. - PyObject *PyObject_Str(PyObject *o); + 'args' must not be *NULL*, use an empty tuple if no arguments are + needed. If no named arguments are needed, 'kwargs' can be NULL. - Compute the string representation of object, o. Returns the - string representation on success, NULL on failure. This is - the equivalent of the Python expression: str(o).) + This is the equivalent of the Python expression: + callable(*args, **kwargs). */ +PyAPI_FUNC(PyObject *) PyObject_Call(PyObject *callable, + PyObject *args, PyObject *kwargs); - Called by the str() and print() built-in functions. +#ifndef Py_LIMITED_API +PyAPI_FUNC(PyObject*) _PyStack_AsTuple( + PyObject **stack, + Py_ssize_t nargs); + +/* Convert keyword arguments from the (stack, kwnames) format to a Python + dictionary. + + kwnames must only contains str strings, no subclass, and all keys must be + unique. kwnames is not checked, usually these checks are done before or + later calling _PyStack_AsDict(). For example, _PyArg_ParseStack() raises an + error if a key is not a string. */ +PyAPI_FUNC(PyObject *) _PyStack_AsDict( + PyObject **values, + PyObject *kwnames); + +/* Convert (args, nargs, kwargs) into a (stack, nargs, kwnames). + + Return a new stack which should be released by PyMem_Free(), or return + args unchanged if kwargs is NULL or an empty dictionary. + + The stack uses borrowed references. + + The type of keyword keys is not checked, these checks should be done + later (ex: _PyArg_ParseStack). */ +PyAPI_FUNC(PyObject **) _PyStack_UnpackDict( + PyObject **args, + Py_ssize_t nargs, + PyObject *kwargs, + PyObject **kwnames, + PyObject *func); + +/* Suggested size (number of positional arguments) for arrays of PyObject* + allocated on a C stack to avoid allocating memory on the heap memory. Such + array is used to pass positional arguments to call functions of the + _PyObject_FastCall() family. + + The size is chosen to not abuse the C stack and so limit the risk of stack + overflow. The size is also chosen to allow using the small stack for most + function calls of the Python standard library. On 64-bit CPU, it allocates + 40 bytes on the stack. */ +#define _PY_FASTCALL_SMALL_STACK 5 + +/* Call the callable object 'callable' with the "fast call" calling convention: + args is a C array for positional arguments (nargs is the number of + positional arguments), kwargs is a dictionary for keyword arguments. + + If nargs is equal to zero, args can be NULL. kwargs can be NULL. + nargs must be greater or equal to zero. + + Return the result on success. Raise an exception on return NULL on + error. */ +PyAPI_FUNC(PyObject *) _PyObject_FastCallDict( + PyObject *callable, + PyObject **args, + Py_ssize_t nargs, + PyObject *kwargs); + +/* Call the callable object 'callable' with the "fast call" calling convention: + args is a C array for positional arguments followed by values of + keyword arguments. Keys of keyword arguments are stored as a tuple + of strings in kwnames. nargs is the number of positional parameters at + the beginning of stack. The size of kwnames gives the number of keyword + values in the stack after positional arguments. + + kwnames must only contains str strings, no subclass, and all keys must + be unique. + + If nargs is equal to zero and there is no keyword argument (kwnames is + NULL or its size is zero), args can be NULL. + + Return the result on success. Raise an exception and return NULL on + error. */ +PyAPI_FUNC(PyObject *) _PyObject_FastCallKeywords( + PyObject *callable, + PyObject **args, + Py_ssize_t nargs, + PyObject *kwnames); - */ +#define _PyObject_FastCall(func, args, nargs) \ + _PyObject_FastCallDict((func), (args), (nargs), NULL) - /* Declared elsewhere +#define _PyObject_CallNoArg(func) \ + _PyObject_FastCallDict((func), NULL, 0, NULL) - PyAPI_FUNC(int) PyCallable_Check(PyObject *o); +PyAPI_FUNC(PyObject *) _PyObject_Call_Prepend( + PyObject *callable, + PyObject *obj, + PyObject *args, + PyObject *kwargs); - Determine if the object, o, is callable. Return 1 if the - object is callable and 0 otherwise. +PyAPI_FUNC(PyObject *) _Py_CheckFunctionResult(PyObject *callable, + PyObject *result, + const char *where); +#endif /* Py_LIMITED_API */ - This function always succeeds. - */ - PyAPI_FUNC(PyObject *) PyObject_Call(PyObject *callable_object, - PyObject *args, PyObject *kwargs); +/* Call a callable Python object 'callable', with arguments given by the + tuple 'args'. If no arguments are needed, then 'args' can be *NULL*. - /* - Call a callable Python object, callable_object, with - arguments and keywords arguments. The 'args' argument can not be - NULL. - */ + Returns the result of the call on success, or *NULL* on failure. -#ifndef Py_LIMITED_API - PyAPI_FUNC(PyObject*) _PyStack_AsTuple( - PyObject **stack, - Py_ssize_t nargs); - - /* Convert keyword arguments from the (stack, kwnames) format to a Python - dictionary. - - kwnames must only contains str strings, no subclass, and all keys must - be unique. kwnames is not checked, usually these checks are done before or later - calling _PyStack_AsDict(). For example, _PyArg_ParseStack() raises an - error if a key is not a string. */ - PyAPI_FUNC(PyObject *) _PyStack_AsDict( - PyObject **values, - PyObject *kwnames); - - /* Convert (args, nargs, kwargs) into a (stack, nargs, kwnames). - - Return a new stack which should be released by PyMem_Free(), or return - args unchanged if kwargs is NULL or an empty dictionary. - - The stack uses borrowed references. - - The type of keyword keys is not checked, these checks should be done - later (ex: _PyArg_ParseStack). */ - PyAPI_FUNC(PyObject **) _PyStack_UnpackDict( - PyObject **args, - Py_ssize_t nargs, - PyObject *kwargs, - PyObject **kwnames, - PyObject *func); - - /* Call the callable object func with the "fast call" calling convention: - args is a C array for positional arguments (nargs is the number of - positional arguments), kwargs is a dictionary for keyword arguments. - - If nargs is equal to zero, args can be NULL. kwargs can be NULL. - nargs must be greater or equal to zero. - - Return the result on success. Raise an exception on return NULL on - error. */ - PyAPI_FUNC(PyObject *) _PyObject_FastCallDict(PyObject *func, - PyObject **args, Py_ssize_t nargs, - PyObject *kwargs); - - /* Call the callable object func with the "fast call" calling convention: - args is a C array for positional arguments followed by values of - keyword arguments. Keys of keyword arguments are stored as a tuple - of strings in kwnames. nargs is the number of positional parameters at - the beginning of stack. The size of kwnames gives the number of keyword - values in the stack after positional arguments. - - kwnames must only contains str strings, no subclass, and all keys must - be unique. - - If nargs is equal to zero and there is no keyword argument (kwnames is - NULL or its size is zero), args can be NULL. - - Return the result on success. Raise an exception and return NULL on - error. */ - PyAPI_FUNC(PyObject *) _PyObject_FastCallKeywords - (PyObject *func, - PyObject **args, - Py_ssize_t nargs, - PyObject *kwnames); + This is the equivalent of the Python expression: + callable(*args). */ +PyAPI_FUNC(PyObject *) PyObject_CallObject(PyObject *callable, + PyObject *args); -#define _PyObject_FastCall(func, args, nargs) \ - _PyObject_FastCallDict((func), (args), (nargs), NULL) +/* Call a callable Python object, callable, with a variable number of C + arguments. The C arguments are described using a mkvalue-style format + string. -#define _PyObject_CallNoArg(func) \ - _PyObject_FastCall((func), NULL, 0) + The format may be NULL, indicating that no arguments are provided. -#define _PyObject_CallArg1(func, arg) \ - _PyObject_FastCall((func), &(arg), 1) + Returns the result of the call on success, or NULL on failure. - PyAPI_FUNC(PyObject *) _PyObject_Call_Prepend(PyObject *func, - PyObject *obj, PyObject *args, - PyObject *kwargs); + This is the equivalent of the Python expression: + callable(arg1, arg2, ...). */ +PyAPI_FUNC(PyObject *) PyObject_CallFunction(PyObject *callable, + const char *format, ...); - PyAPI_FUNC(PyObject *) _Py_CheckFunctionResult(PyObject *func, - PyObject *result, - const char *where); -#endif /* Py_LIMITED_API */ +/* Call the method named 'name' of object 'obj' with a variable number of + C arguments. The C arguments are described by a mkvalue format string. + + The format can be NULL, indicating that no arguments are provided. + + Returns the result of the call on success, or NULL on failure. - PyAPI_FUNC(PyObject *) PyObject_CallObject(PyObject *callable_object, - PyObject *args); - - /* - Call a callable Python object, callable_object, with - arguments given by the tuple, args. If no arguments are - needed, then args may be NULL. Returns the result of the - call on success, or NULL on failure. This is the equivalent - of the Python expression: o(*args). - */ - - PyAPI_FUNC(PyObject *) PyObject_CallFunction(PyObject *callable_object, - const char *format, ...); - - /* - Call a callable Python object, callable_object, with a - variable number of C arguments. The C arguments are described - using a mkvalue-style format string. The format may be NULL, - indicating that no arguments are provided. Returns the - result of the call on success, or NULL on failure. This is - the equivalent of the Python expression: o(*args). - */ - - - PyAPI_FUNC(PyObject *) PyObject_CallMethod(PyObject *o, - const char *method, - const char *format, ...); - - /* - Call the method named m of object o with a variable number of - C arguments. The C arguments are described by a mkvalue - format string. The format may be NULL, indicating that no - arguments are provided. Returns the result of the call on - success, or NULL on failure. This is the equivalent of the - Python expression: o.method(args). - */ + This is the equivalent of the Python expression: + obj.name(arg1, arg2, ...). */ +PyAPI_FUNC(PyObject *) PyObject_CallMethod(PyObject *obj, + const char *name, + const char *format, ...); #ifndef Py_LIMITED_API - PyAPI_FUNC(PyObject *) _PyObject_CallMethodId(PyObject *o, - _Py_Identifier *method, - const char *format, ...); - - /* - Like PyObject_CallMethod, but expect a _Py_Identifier* as the - method name. - */ +/* Like PyObject_CallMethod(), but expect a _Py_Identifier* + as the method name. */ +PyAPI_FUNC(PyObject *) _PyObject_CallMethodId(PyObject *obj, + _Py_Identifier *name, + const char *format, ...); #endif /* !Py_LIMITED_API */ - PyAPI_FUNC(PyObject *) _PyObject_CallFunction_SizeT(PyObject *callable, - const char *format, - ...); - PyAPI_FUNC(PyObject *) _PyObject_CallMethod_SizeT(PyObject *o, - const char *name, - const char *format, - ...); +PyAPI_FUNC(PyObject *) _PyObject_CallFunction_SizeT(PyObject *callable, + const char *format, + ...); + +PyAPI_FUNC(PyObject *) _PyObject_CallMethod_SizeT(PyObject *obj, + const char *name, + const char *format, + ...); + #ifndef Py_LIMITED_API - PyAPI_FUNC(PyObject *) _PyObject_CallMethodId_SizeT(PyObject *o, - _Py_Identifier *name, - const char *format, - ...); +PyAPI_FUNC(PyObject *) _PyObject_CallMethodId_SizeT(PyObject *obj, + _Py_Identifier *name, + const char *format, + ...); #endif /* !Py_LIMITED_API */ - PyAPI_FUNC(PyObject *) PyObject_CallFunctionObjArgs(PyObject *callable, - ...); +/* Call a callable Python object 'callable' with a variable number of C + arguments. The C arguments are provided as PyObject* values, terminated + by a NULL. + + Returns the result of the call on success, or NULL on failure. + + This is the equivalent of the Python expression: + callable(arg1, arg2, ...). */ +PyAPI_FUNC(PyObject *) PyObject_CallFunctionObjArgs(PyObject *callable, + ...); + +#ifndef Py_LIMITED_API +/* Similar PyObject_CallFunctionObjArgs(), but pass positional arguments + as a va_list: list of PyObject* object. */ +PyAPI_FUNC(PyObject *) _PyObject_VaCallFunctionObjArgs( + PyObject *callable, + va_list vargs); +#endif + +/* Call the method named 'name' of object 'obj' with a variable number of + C arguments. The C arguments are provided as PyObject* values, terminated + by NULL. + + Returns the result of the call on success, or NULL on failure. - /* - Call a callable Python object, callable_object, with a - variable number of C arguments. The C arguments are provided - as PyObject * values, terminated by a NULL. Returns the - result of the call on success, or NULL on failure. This is - the equivalent of the Python expression: o(*args). - */ + This is the equivalent of the Python expression: obj.name(*args). */ +PyAPI_FUNC(PyObject *) PyObject_CallMethodObjArgs( + PyObject *obj, + PyObject *name, + ...); - PyAPI_FUNC(PyObject *) PyObject_CallMethodObjArgs(PyObject *o, - PyObject *method, ...); #ifndef Py_LIMITED_API - PyAPI_FUNC(PyObject *) _PyObject_CallMethodIdObjArgs(PyObject *o, - struct _Py_Identifier *method, - ...); +PyAPI_FUNC(PyObject *) _PyObject_CallMethodIdObjArgs( + PyObject *obj, + struct _Py_Identifier *name, + ...); #endif /* !Py_LIMITED_API */ - /* - Call the method named m of object o with a variable number of - C arguments. The C arguments are provided as PyObject * - values, terminated by NULL. Returns the result of the call - on success, or NULL on failure. This is the equivalent of - the Python expression: o.method(args). - */ +/* Implemented elsewhere: + + long PyObject_Hash(PyObject *o); + + Compute and return the hash, hash_value, of an object, o. On + failure, return -1. + + This is the equivalent of the Python expression: hash(o). */ + + +/* Implemented elsewhere: + + int PyObject_IsTrue(PyObject *o); - /* Implemented elsewhere: + Returns 1 if the object, o, is considered to be true, 0 if o is + considered to be false and -1 on failure. - long PyObject_Hash(PyObject *o); + This is equivalent to the Python expression: not not o. */ - Compute and return the hash, hash_value, of an object, o. On - failure, return -1. This is the equivalent of the Python - expression: hash(o). - */ +/* Implemented elsewhere: - /* Implemented elsewhere: + int PyObject_Not(PyObject *o); - int PyObject_IsTrue(PyObject *o); + Returns 0 if the object, o, is considered to be true, 1 if o is + considered to be false and -1 on failure. - Returns 1 if the object, o, is considered to be true, 0 if o is - considered to be false and -1 on failure. This is equivalent to the - Python expression: not not o - */ + This is equivalent to the Python expression: not o. */ - /* Implemented elsewhere: - int PyObject_Not(PyObject *o); +/* Get the type of an object. - Returns 0 if the object, o, is considered to be true, 1 if o is - considered to be false and -1 on failure. This is equivalent to the - Python expression: not o - */ + On success, returns a type object corresponding to the object type of object + 'o'. On failure, returns NULL. - PyAPI_FUNC(PyObject *) PyObject_Type(PyObject *o); + This is equivalent to the Python expression: type(o) */ +PyAPI_FUNC(PyObject *) PyObject_Type(PyObject *o); - /* - On success, returns a type object corresponding to the object - type of object o. On failure, returns NULL. This is - equivalent to the Python expression: type(o). - */ - PyAPI_FUNC(Py_ssize_t) PyObject_Size(PyObject *o); +/* Return the size of object 'o'. If the object 'o' provides both sequence and + mapping protocols, the sequence size is returned. - /* - Return the size of object o. If the object, o, provides - both sequence and mapping protocols, the sequence size is - returned. On error, -1 is returned. This is the equivalent - to the Python expression: len(o). - */ + On error, -1 is returned. - /* For DLL compatibility */ + This is the equivalent to the Python expression: len(o) */ +PyAPI_FUNC(Py_ssize_t) PyObject_Size(PyObject *o); + + +/* For DLL compatibility */ #undef PyObject_Length - PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o); +PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o); #define PyObject_Length PyObject_Size + #ifndef Py_LIMITED_API - PyAPI_FUNC(int) _PyObject_HasLen(PyObject *o); - PyAPI_FUNC(Py_ssize_t) PyObject_LengthHint(PyObject *o, Py_ssize_t); -#endif +PyAPI_FUNC(int) _PyObject_HasLen(PyObject *o); - /* - Guess the size of object o using len(o) or o.__length_hint__(). - If neither of those return a non-negative value, then return the - default value. If one of the calls fails, this function returns -1. - */ - - PyAPI_FUNC(PyObject *) PyObject_GetItem(PyObject *o, PyObject *key); - - /* - Return element of o corresponding to the object, key, or NULL - on failure. This is the equivalent of the Python expression: - o[key]. - */ - - PyAPI_FUNC(int) PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v); - - /* - Map the object key to the value v. Raise an exception and return -1 - on failure; return 0 on success. This is the equivalent of the Python - statement o[key]=v. - */ - - PyAPI_FUNC(int) PyObject_DelItemString(PyObject *o, const char *key); - - /* - Remove the mapping for object, key, from the object *o. - Returns -1 on failure. This is equivalent to - the Python statement: del o[key]. - */ - - PyAPI_FUNC(int) PyObject_DelItem(PyObject *o, PyObject *key); - - /* - Delete the mapping for key from *o. Returns -1 on failure. - This is the equivalent of the Python statement: del o[key]. - */ - - /* old buffer API - FIXME: usage of these should all be replaced in Python itself - but for backwards compatibility we will implement them. - Their usage without a corresponding "unlock" mechanism - may create issues (but they would already be there). */ - - PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj, - const char **buffer, - Py_ssize_t *buffer_len); - - /* - Takes an arbitrary object which must support the (character, - single segment) buffer interface and returns a pointer to a - read-only memory location useable as character based input - for subsequent processing. - - 0 is returned on success. buffer and buffer_len are only - set in case no error occurs. Otherwise, -1 is returned and - an exception set. - */ - - PyAPI_FUNC(int) PyObject_CheckReadBuffer(PyObject *obj); - - /* - Checks whether an arbitrary object supports the (character, - single segment) buffer interface. Returns 1 on success, 0 - on failure. - */ - - PyAPI_FUNC(int) PyObject_AsReadBuffer(PyObject *obj, - const void **buffer, - Py_ssize_t *buffer_len); - - /* - Same as PyObject_AsCharBuffer() except that this API expects - (readable, single segment) buffer interface and returns a - pointer to a read-only memory location which can contain - arbitrary data. - - 0 is returned on success. buffer and buffer_len are only - set in case no error occurs. Otherwise, -1 is returned and - an exception set. - */ - - PyAPI_FUNC(int) PyObject_AsWriteBuffer(PyObject *obj, - void **buffer, - Py_ssize_t *buffer_len); - - /* - Takes an arbitrary object which must support the (writable, - single segment) buffer interface and returns a pointer to a - writable memory location in buffer of size buffer_len. - - 0 is returned on success. buffer and buffer_len are only - set in case no error occurs. Otherwise, -1 is returned and - an exception set. - */ - - /* new buffer API */ +/* Guess the size of object 'o' using len(o) or o.__length_hint__(). + If neither of those return a non-negative value, then return the default + value. If one of the calls fails, this function returns -1. */ +PyAPI_FUNC(Py_ssize_t) PyObject_LengthHint(PyObject *o, Py_ssize_t); +#endif -#ifndef Py_LIMITED_API -#define PyObject_CheckBuffer(obj) \ - (((obj)->ob_type->tp_as_buffer != NULL) && \ - ((obj)->ob_type->tp_as_buffer->bf_getbuffer != NULL)) +/* Return element of 'o' corresponding to the object 'key'. Return NULL + on failure. - /* Return 1 if the getbuffer function is available, otherwise - return 0 */ + This is the equivalent of the Python expression: o[key] */ +PyAPI_FUNC(PyObject *) PyObject_GetItem(PyObject *o, PyObject *key); - PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view, - int flags); - /* This is a C-API version of the getbuffer function call. It checks - to make sure object has the required function pointer and issues the - call. Returns -1 and raises an error on failure and returns 0 on - success - */ +/* Map the object 'key' to the value 'v' into 'o'. + Raise an exception and return -1 on failure; return 0 on success. - PyAPI_FUNC(void *) PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices); + This is the equivalent of the Python statement: o[key]=v. */ +PyAPI_FUNC(int) PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v); - /* Get the memory area pointed to by the indices for the buffer given. - Note that view->ndim is the assumed size of indices - */ +/* Remove the mapping for object, key, from the object 'o'. + Returns -1 on failure. - PyAPI_FUNC(int) PyBuffer_SizeFromFormat(const char *); + This is equivalent to the Python statement: del o[key]. */ +PyAPI_FUNC(int) PyObject_DelItemString(PyObject *o, const char *key); - /* Return the implied itemsize of the data-format area from a - struct-style description */ +/* Delete the mapping for key from object 'o'. Returns -1 on failure. + This is the equivalent of the Python statement: del o[key]. */ +PyAPI_FUNC(int) PyObject_DelItem(PyObject *o, PyObject *key); - /* Implementation in memoryobject.c */ - PyAPI_FUNC(int) PyBuffer_ToContiguous(void *buf, Py_buffer *view, - Py_ssize_t len, char order); +/* === Old Buffer API ============================================ */ - PyAPI_FUNC(int) PyBuffer_FromContiguous(Py_buffer *view, void *buf, - Py_ssize_t len, char order); +/* FIXME: usage of these should all be replaced in Python itself + but for backwards compatibility we will implement them. + Their usage without a corresponding "unlock" mechanism + may create issues (but they would already be there). */ +/* Takes an arbitrary object which must support the (character, single segment) + buffer interface and returns a pointer to a read-only memory location + useable as character based input for subsequent processing. - /* Copy len bytes of data from the contiguous chunk of memory - pointed to by buf into the buffer exported by obj. Return - 0 on success and return -1 and raise a PyBuffer_Error on - error (i.e. the object does not have a buffer interface or - it is not working). + Return 0 on success. buffer and buffer_len are only set in case no error + occurs. Otherwise, -1 is returned and an exception set. */ +PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj, + const char **buffer, + Py_ssize_t *buffer_len) + Py_DEPRECATED(3.0); - If fort is 'F', then if the object is multi-dimensional, - then the data will be copied into the array in - Fortran-style (first dimension varies the fastest). If - fort is 'C', then the data will be copied into the array - in C-style (last dimension varies the fastest). If fort - is 'A', then it does not matter and the copy will be made - in whatever way is more efficient. +/* Checks whether an arbitrary object supports the (character, single segment) + buffer interface. - */ + Returns 1 on success, 0 on failure. */ +PyAPI_FUNC(int) PyObject_CheckReadBuffer(PyObject *obj) + Py_DEPRECATED(3.0); - PyAPI_FUNC(int) PyObject_CopyData(PyObject *dest, PyObject *src); +/* Same as PyObject_AsCharBuffer() except that this API expects (readable, + single segment) buffer interface and returns a pointer to a read-only memory + location which can contain arbitrary data. - /* Copy the data from the src buffer to the buffer of destination - */ + 0 is returned on success. buffer and buffer_len are only set in case no + error occurs. Otherwise, -1 is returned and an exception set. */ +PyAPI_FUNC(int) PyObject_AsReadBuffer(PyObject *obj, + const void **buffer, + Py_ssize_t *buffer_len) + Py_DEPRECATED(3.0); - PyAPI_FUNC(int) PyBuffer_IsContiguous(const Py_buffer *view, char fort); +/* Takes an arbitrary object which must support the (writable, single segment) + buffer interface and returns a pointer to a writable memory location in + buffer of size 'buffer_len'. + Return 0 on success. buffer and buffer_len are only set in case no error + occurs. Otherwise, -1 is returned and an exception set. */ +PyAPI_FUNC(int) PyObject_AsWriteBuffer(PyObject *obj, + void **buffer, + Py_ssize_t *buffer_len) + Py_DEPRECATED(3.0); - PyAPI_FUNC(void) PyBuffer_FillContiguousStrides(int ndims, - Py_ssize_t *shape, - Py_ssize_t *strides, - int itemsize, - char fort); - /* Fill the strides array with byte-strides of a contiguous - (Fortran-style if fort is 'F' or C-style otherwise) - array of the given shape with the given number of bytes - per element. - */ +/* === New Buffer API ============================================ */ - PyAPI_FUNC(int) PyBuffer_FillInfo(Py_buffer *view, PyObject *o, void *buf, - Py_ssize_t len, int readonly, - int flags); +#ifndef Py_LIMITED_API - /* Fills in a buffer-info structure correctly for an exporter - that can only share a contiguous chunk of memory of - "unsigned bytes" of the given length. Returns 0 on success - and -1 (with raising an error) on error. - */ +/* Return 1 if the getbuffer function is available, otherwise return 0. */ +#define PyObject_CheckBuffer(obj) \ + (((obj)->ob_type->tp_as_buffer != NULL) && \ + ((obj)->ob_type->tp_as_buffer->bf_getbuffer != NULL)) - PyAPI_FUNC(void) PyBuffer_Release(Py_buffer *view); +/* This is a C-API version of the getbuffer function call. It checks + to make sure object has the required function pointer and issues the + call. + + Returns -1 and raises an error on failure and returns 0 on success. */ +PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view, + int flags); + +/* Get the memory area pointed to by the indices for the buffer given. + Note that view->ndim is the assumed size of indices. */ +PyAPI_FUNC(void *) PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices); + +/* Return the implied itemsize of the data-format area from a + struct-style description. */ +PyAPI_FUNC(int) PyBuffer_SizeFromFormat(const char *); + +/* Implementation in memoryobject.c */ +PyAPI_FUNC(int) PyBuffer_ToContiguous(void *buf, Py_buffer *view, + Py_ssize_t len, char order); + +PyAPI_FUNC(int) PyBuffer_FromContiguous(Py_buffer *view, void *buf, + Py_ssize_t len, char order); + +/* Copy len bytes of data from the contiguous chunk of memory + pointed to by buf into the buffer exported by obj. Return + 0 on success and return -1 and raise a PyBuffer_Error on + error (i.e. the object does not have a buffer interface or + it is not working). + + If fort is 'F', then if the object is multi-dimensional, + then the data will be copied into the array in + Fortran-style (first dimension varies the fastest). If + fort is 'C', then the data will be copied into the array + in C-style (last dimension varies the fastest). If fort + is 'A', then it does not matter and the copy will be made + in whatever way is more efficient. */ +PyAPI_FUNC(int) PyObject_CopyData(PyObject *dest, PyObject *src); + +/* Copy the data from the src buffer to the buffer of destination. */ +PyAPI_FUNC(int) PyBuffer_IsContiguous(const Py_buffer *view, char fort); + +/*Fill the strides array with byte-strides of a contiguous + (Fortran-style if fort is 'F' or C-style otherwise) + array of the given shape with the given number of bytes + per element. */ +PyAPI_FUNC(void) PyBuffer_FillContiguousStrides(int ndims, + Py_ssize_t *shape, + Py_ssize_t *strides, + int itemsize, + char fort); + +/* Fills in a buffer-info structure correctly for an exporter + that can only share a contiguous chunk of memory of + "unsigned bytes" of the given length. + + Returns 0 on success and -1 (with raising an error) on error. */ +PyAPI_FUNC(int) PyBuffer_FillInfo(Py_buffer *view, PyObject *o, void *buf, + Py_ssize_t len, int readonly, + int flags); + +/* Releases a Py_buffer obtained from getbuffer ParseTuple's "s*". */ +PyAPI_FUNC(void) PyBuffer_Release(Py_buffer *view); - /* Releases a Py_buffer obtained from getbuffer ParseTuple's s*. - */ #endif /* Py_LIMITED_API */ - PyAPI_FUNC(PyObject *) PyObject_Format(PyObject* obj, - PyObject *format_spec); - /* - Takes an arbitrary object and returns the result of - calling obj.__format__(format_spec). - */ +/* Takes an arbitrary object and returns the result of calling + obj.__format__(format_spec). */ +PyAPI_FUNC(PyObject *) PyObject_Format(PyObject *obj, + PyObject *format_spec); + -/* Iterators */ +/* ==== Iterators ================================================ */ - PyAPI_FUNC(PyObject *) PyObject_GetIter(PyObject *); - /* Takes an object and returns an iterator for it. - This is typically a new iterator but if the argument - is an iterator, this returns itself. */ +/* Takes an object and returns an iterator for it. + This is typically a new iterator but if the argument is an iterator, this + returns itself. */ +PyAPI_FUNC(PyObject *) PyObject_GetIter(PyObject *); #define PyIter_Check(obj) \ ((obj)->ob_type->tp_iternext != NULL && \ (obj)->ob_type->tp_iternext != &_PyObject_NextNotImplemented) - PyAPI_FUNC(PyObject *) PyIter_Next(PyObject *); - /* Takes an iterator object and calls its tp_iternext slot, - returning the next value. If the iterator is exhausted, - this returns NULL without setting an exception. - NULL with an exception means an error occurred. */ +/* Takes an iterator object and calls its tp_iternext slot, + returning the next value. -/* Number Protocol:*/ + If the iterator is exhausted, this returns NULL without setting an + exception. - PyAPI_FUNC(int) PyNumber_Check(PyObject *o); + NULL with an exception means an error occurred. */ +PyAPI_FUNC(PyObject *) PyIter_Next(PyObject *); - /* - Returns 1 if the object, o, provides numeric protocols, and - false otherwise. - This function always succeeds. - */ +/* === Number Protocol ================================================== */ - PyAPI_FUNC(PyObject *) PyNumber_Add(PyObject *o1, PyObject *o2); +/* Returns 1 if the object 'o' provides numeric protocols, and 0 otherwise. - /* - Returns the result of adding o1 and o2, or null on failure. - This is the equivalent of the Python expression: o1+o2. - */ + This function always succeeds. */ +PyAPI_FUNC(int) PyNumber_Check(PyObject *o); - PyAPI_FUNC(PyObject *) PyNumber_Subtract(PyObject *o1, PyObject *o2); +/* Returns the result of adding o1 and o2, or NULL on failure. - /* - Returns the result of subtracting o2 from o1, or null on - failure. This is the equivalent of the Python expression: - o1-o2. - */ + This is the equivalent of the Python expression: o1 + o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Add(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_Multiply(PyObject *o1, PyObject *o2); +/* Returns the result of subtracting o2 from o1, or NULL on failure. - /* - Returns the result of multiplying o1 and o2, or null on - failure. This is the equivalent of the Python expression: - o1*o2. - */ + This is the equivalent of the Python expression: o1 - o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Subtract(PyObject *o1, PyObject *o2); -#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000 - PyAPI_FUNC(PyObject *) PyNumber_MatrixMultiply(PyObject *o1, PyObject *o2); +/* Returns the result of multiplying o1 and o2, or NULL on failure. + + This is the equivalent of the Python expression: o1 * o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Multiply(PyObject *o1, PyObject *o2); - /* - This is the equivalent of the Python expression: o1 @ o2. - */ +#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000 +/* This is the equivalent of the Python expression: o1 @ o2. */ +PyAPI_FUNC(PyObject *) PyNumber_MatrixMultiply(PyObject *o1, PyObject *o2); #endif - PyAPI_FUNC(PyObject *) PyNumber_FloorDivide(PyObject *o1, PyObject *o2); +/* Returns the result of dividing o1 by o2 giving an integral result, + or NULL on failure. - /* - Returns the result of dividing o1 by o2 giving an integral result, - or null on failure. - This is the equivalent of the Python expression: o1//o2. - */ + This is the equivalent of the Python expression: o1 // o2. */ +PyAPI_FUNC(PyObject *) PyNumber_FloorDivide(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_TrueDivide(PyObject *o1, PyObject *o2); +/* Returns the result of dividing o1 by o2 giving a float result, or NULL on + failure. - /* - Returns the result of dividing o1 by o2 giving a float result, - or null on failure. - This is the equivalent of the Python expression: o1/o2. - */ + This is the equivalent of the Python expression: o1 / o2. */ +PyAPI_FUNC(PyObject *) PyNumber_TrueDivide(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_Remainder(PyObject *o1, PyObject *o2); +/* Returns the remainder of dividing o1 by o2, or NULL on failure. - /* - Returns the remainder of dividing o1 by o2, or null on - failure. This is the equivalent of the Python expression: - o1%o2. - */ + This is the equivalent of the Python expression: o1 % o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Remainder(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_Divmod(PyObject *o1, PyObject *o2); +/* See the built-in function divmod. - /* - See the built-in function divmod. Returns NULL on failure. - This is the equivalent of the Python expression: - divmod(o1,o2). - */ + Returns NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Power(PyObject *o1, PyObject *o2, - PyObject *o3); + This is the equivalent of the Python expression: divmod(o1, o2). */ +PyAPI_FUNC(PyObject *) PyNumber_Divmod(PyObject *o1, PyObject *o2); - /* - See the built-in function pow. Returns NULL on failure. - This is the equivalent of the Python expression: - pow(o1,o2,o3), where o3 is optional. - */ +/* See the built-in function pow. Returns NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Negative(PyObject *o); + This is the equivalent of the Python expression: pow(o1, o2, o3), + where o3 is optional. */ +PyAPI_FUNC(PyObject *) PyNumber_Power(PyObject *o1, PyObject *o2, + PyObject *o3); - /* - Returns the negation of o on success, or null on failure. - This is the equivalent of the Python expression: -o. - */ +/* Returns the negation of o on success, or NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Positive(PyObject *o); + This is the equivalent of the Python expression: -o. */ +PyAPI_FUNC(PyObject *) PyNumber_Negative(PyObject *o); - /* - Returns the (what?) of o on success, or NULL on failure. - This is the equivalent of the Python expression: +o. - */ +/* Returns the positive of o on success, or NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Absolute(PyObject *o); + This is the equivalent of the Python expression: +o. */ +PyAPI_FUNC(PyObject *) PyNumber_Positive(PyObject *o); - /* - Returns the absolute value of o, or null on failure. This is - the equivalent of the Python expression: abs(o). - */ +/* Returns the absolute value of 'o', or NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Invert(PyObject *o); + This is the equivalent of the Python expression: abs(o). */ +PyAPI_FUNC(PyObject *) PyNumber_Absolute(PyObject *o); - /* - Returns the bitwise negation of o on success, or NULL on - failure. This is the equivalent of the Python expression: - ~o. - */ +/* Returns the bitwise negation of 'o' on success, or NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Lshift(PyObject *o1, PyObject *o2); + This is the equivalent of the Python expression: ~o. */ +PyAPI_FUNC(PyObject *) PyNumber_Invert(PyObject *o); - /* - Returns the result of left shifting o1 by o2 on success, or - NULL on failure. This is the equivalent of the Python - expression: o1 << o2. - */ +/* Returns the result of left shifting o1 by o2 on success, or NULL on failure. - PyAPI_FUNC(PyObject *) PyNumber_Rshift(PyObject *o1, PyObject *o2); + This is the equivalent of the Python expression: o1 << o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Lshift(PyObject *o1, PyObject *o2); - /* - Returns the result of right shifting o1 by o2 on success, or - NULL on failure. This is the equivalent of the Python - expression: o1 >> o2. - */ +/* Returns the result of right shifting o1 by o2 on success, or NULL on + failure. - PyAPI_FUNC(PyObject *) PyNumber_And(PyObject *o1, PyObject *o2); + This is the equivalent of the Python expression: o1 >> o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Rshift(PyObject *o1, PyObject *o2); - /* - Returns the result of bitwise and of o1 and o2 on success, or - NULL on failure. This is the equivalent of the Python - expression: o1&o2. +/* Returns the result of bitwise and of o1 and o2 on success, or NULL on + failure. - */ + This is the equivalent of the Python expression: o1 & o2. */ +PyAPI_FUNC(PyObject *) PyNumber_And(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_Xor(PyObject *o1, PyObject *o2); +/* Returns the bitwise exclusive or of o1 by o2 on success, or NULL on failure. - /* - Returns the bitwise exclusive or of o1 by o2 on success, or - NULL on failure. This is the equivalent of the Python - expression: o1^o2. - */ + This is the equivalent of the Python expression: o1 ^ o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Xor(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_Or(PyObject *o1, PyObject *o2); +/* Returns the result of bitwise or on o1 and o2 on success, or NULL on + failure. - /* - Returns the result of bitwise or on o1 and o2 on success, or - NULL on failure. This is the equivalent of the Python - expression: o1|o2. - */ + This is the equivalent of the Python expression: o1 | o2. */ +PyAPI_FUNC(PyObject *) PyNumber_Or(PyObject *o1, PyObject *o2); -#define PyIndex_Check(obj) \ - ((obj)->ob_type->tp_as_number != NULL && \ - (obj)->ob_type->tp_as_number->nb_index != NULL) +#define PyIndex_Check(obj) \ + ((obj)->ob_type->tp_as_number != NULL && \ + (obj)->ob_type->tp_as_number->nb_index != NULL) - PyAPI_FUNC(PyObject *) PyNumber_Index(PyObject *o); +/* Returns the object 'o' converted to a Python int, or NULL with an exception + raised on failure. */ +PyAPI_FUNC(PyObject *) PyNumber_Index(PyObject *o); - /* - Returns the object converted to a Python int - or NULL with an error raised on failure. - */ +/* Returns the object 'o' converted to Py_ssize_t by going through + PyNumber_Index() first. - PyAPI_FUNC(Py_ssize_t) PyNumber_AsSsize_t(PyObject *o, PyObject *exc); + If an overflow error occurs while converting the int to Py_ssize_t, then the + second argument 'exc' is the error-type to return. If it is NULL, then the + overflow error is cleared and the value is clipped. */ +PyAPI_FUNC(Py_ssize_t) PyNumber_AsSsize_t(PyObject *o, PyObject *exc); - /* - Returns the object converted to Py_ssize_t by going through - PyNumber_Index first. If an overflow error occurs while - converting the int to Py_ssize_t, then the second argument - is the error-type to return. If it is NULL, then the overflow error - is cleared and the value is clipped. - */ +/* Returns the object 'o' converted to an integer object on success, or NULL + on failure. - PyAPI_FUNC(PyObject *) PyNumber_Long(PyObject *o); + This is the equivalent of the Python expression: int(o). */ +PyAPI_FUNC(PyObject *) PyNumber_Long(PyObject *o); - /* - Returns the o converted to an integer object on success, or - NULL on failure. This is the equivalent of the Python - expression: int(o). - */ +/* Returns the object 'o' converted to a float object on success, or NULL + on failure. - PyAPI_FUNC(PyObject *) PyNumber_Float(PyObject *o); + This is the equivalent of the Python expression: float(o). */ +PyAPI_FUNC(PyObject *) PyNumber_Float(PyObject *o); - /* - Returns the o converted to a float object on success, or NULL - on failure. This is the equivalent of the Python expression: - float(o). - */ -/* In-place variants of (some of) the above number protocol functions */ +/* --- In-place variants of (some of) the above number protocol functions -- */ - PyAPI_FUNC(PyObject *) PyNumber_InPlaceAdd(PyObject *o1, PyObject *o2); +/* Returns the result of adding o2 to o1, possibly in-place, or NULL + on failure. - /* - Returns the result of adding o2 to o1, possibly in-place, or null - on failure. This is the equivalent of the Python expression: - o1 += o2. - */ + This is the equivalent of the Python expression: o1 += o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceAdd(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceSubtract(PyObject *o1, PyObject *o2); +/* Returns the result of subtracting o2 from o1, possibly in-place or + NULL on failure. - /* - Returns the result of subtracting o2 from o1, possibly in-place or - null on failure. This is the equivalent of the Python expression: - o1 -= o2. - */ + This is the equivalent of the Python expression: o1 -= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceSubtract(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceMultiply(PyObject *o1, PyObject *o2); +/* Returns the result of multiplying o1 by o2, possibly in-place, or NULL on + failure. - /* - Returns the result of multiplying o1 by o2, possibly in-place, or - null on failure. This is the equivalent of the Python expression: - o1 *= o2. - */ + This is the equivalent of the Python expression: o1 *= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceMultiply(PyObject *o1, PyObject *o2); #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000 - PyAPI_FUNC(PyObject *) PyNumber_InPlaceMatrixMultiply(PyObject *o1, PyObject *o2); - - /* - This is the equivalent of the Python expression: o1 @= o2. - */ +/* This is the equivalent of the Python expression: o1 @= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceMatrixMultiply(PyObject *o1, PyObject *o2); #endif - PyAPI_FUNC(PyObject *) PyNumber_InPlaceFloorDivide(PyObject *o1, - PyObject *o2); +/* Returns the result of dividing o1 by o2 giving an integral result, possibly + in-place, or NULL on failure. - /* - Returns the result of dividing o1 by o2 giving an integral result, - possibly in-place, or null on failure. - This is the equivalent of the Python expression: - o1 /= o2. - */ + This is the equivalent of the Python expression: o1 /= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceFloorDivide(PyObject *o1, + PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceTrueDivide(PyObject *o1, - PyObject *o2); +/* Returns the result of dividing o1 by o2 giving a float result, possibly + in-place, or null on failure. - /* - Returns the result of dividing o1 by o2 giving a float result, - possibly in-place, or null on failure. - This is the equivalent of the Python expression: - o1 /= o2. - */ + This is the equivalent of the Python expression: o1 /= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceTrueDivide(PyObject *o1, + PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceRemainder(PyObject *o1, PyObject *o2); +/* Returns the remainder of dividing o1 by o2, possibly in-place, or NULL on + failure. - /* - Returns the remainder of dividing o1 by o2, possibly in-place, or - null on failure. This is the equivalent of the Python expression: - o1 %= o2. - */ + This is the equivalent of the Python expression: o1 %= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceRemainder(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlacePower(PyObject *o1, PyObject *o2, - PyObject *o3); +/* Returns the result of raising o1 to the power of o2, possibly in-place, + or NULL on failure. - /* - Returns the result of raising o1 to the power of o2, possibly - in-place, or null on failure. This is the equivalent of the Python - expression: o1 **= o2, or pow(o1, o2, o3) if o3 is present. - */ + This is the equivalent of the Python expression: o1 **= o2, + or o1 = pow(o1, o2, o3) if o3 is present. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlacePower(PyObject *o1, PyObject *o2, + PyObject *o3); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceLshift(PyObject *o1, PyObject *o2); +/* Returns the result of left shifting o1 by o2, possibly in-place, or NULL + on failure. - /* - Returns the result of left shifting o1 by o2, possibly in-place, or - null on failure. This is the equivalent of the Python expression: - o1 <<= o2. - */ + This is the equivalent of the Python expression: o1 <<= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceLshift(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceRshift(PyObject *o1, PyObject *o2); +/* Returns the result of right shifting o1 by o2, possibly in-place or NULL + on failure. - /* - Returns the result of right shifting o1 by o2, possibly in-place or - null on failure. This is the equivalent of the Python expression: - o1 >>= o2. - */ + This is the equivalent of the Python expression: o1 >>= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceRshift(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceAnd(PyObject *o1, PyObject *o2); +/* Returns the result of bitwise and of o1 and o2, possibly in-place, or NULL + on failure. - /* - Returns the result of bitwise and of o1 and o2, possibly in-place, - or null on failure. This is the equivalent of the Python - expression: o1 &= o2. - */ + This is the equivalent of the Python expression: o1 &= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceAnd(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceXor(PyObject *o1, PyObject *o2); +/* Returns the bitwise exclusive or of o1 by o2, possibly in-place, or NULL + on failure. - /* - Returns the bitwise exclusive or of o1 by o2, possibly in-place, or - null on failure. This is the equivalent of the Python expression: - o1 ^= o2. - */ + This is the equivalent of the Python expression: o1 ^= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceXor(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_InPlaceOr(PyObject *o1, PyObject *o2); +/* Returns the result of bitwise or of o1 and o2, possibly in-place, + or NULL on failure. - /* - Returns the result of bitwise or of o1 and o2, possibly in-place, - or null on failure. This is the equivalent of the Python - expression: o1 |= o2. - */ + This is the equivalent of the Python expression: o1 |= o2. */ +PyAPI_FUNC(PyObject *) PyNumber_InPlaceOr(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PyNumber_ToBase(PyObject *n, int base); +/* Returns the integer n converted to a string with a base, with a base + marker of 0b, 0o or 0x prefixed if applicable. - /* - Returns the integer n converted to a string with a base, with a base - marker of 0b, 0o or 0x prefixed if applicable. - If n is not an int object, it is converted with PyNumber_Index first. - */ + If n is not an int object, it is converted with PyNumber_Index first. */ +PyAPI_FUNC(PyObject *) PyNumber_ToBase(PyObject *n, int base); -/* Sequence protocol:*/ +/* === Sequence protocol ================================================ */ - PyAPI_FUNC(int) PySequence_Check(PyObject *o); +/* Return 1 if the object provides sequence protocol, and zero + otherwise. - /* - Return 1 if the object provides sequence protocol, and zero - otherwise. + This function always succeeds. */ +PyAPI_FUNC(int) PySequence_Check(PyObject *o); - This function always succeeds. - */ +/* Return the size of sequence object o, or -1 on failure. */ +PyAPI_FUNC(Py_ssize_t) PySequence_Size(PyObject *o); - PyAPI_FUNC(Py_ssize_t) PySequence_Size(PyObject *o); - - /* - Return the size of sequence object o, or -1 on failure. - */ - - /* For DLL compatibility */ +/* For DLL compatibility */ #undef PySequence_Length - PyAPI_FUNC(Py_ssize_t) PySequence_Length(PyObject *o); +PyAPI_FUNC(Py_ssize_t) PySequence_Length(PyObject *o); #define PySequence_Length PySequence_Size - PyAPI_FUNC(PyObject *) PySequence_Concat(PyObject *o1, PyObject *o2); +/* Return the concatenation of o1 and o2 on success, and NULL on failure. - /* - Return the concatenation of o1 and o2 on success, and NULL on - failure. This is the equivalent of the Python - expression: o1+o2. - */ + This is the equivalent of the Python expression: o1 + o2. */ +PyAPI_FUNC(PyObject *) PySequence_Concat(PyObject *o1, PyObject *o2); - PyAPI_FUNC(PyObject *) PySequence_Repeat(PyObject *o, Py_ssize_t count); +/* Return the result of repeating sequence object 'o' 'count' times, + or NULL on failure. - /* - Return the result of repeating sequence object o count times, - or NULL on failure. This is the equivalent of the Python - expression: o1*count. - */ + This is the equivalent of the Python expression: o * count. */ +PyAPI_FUNC(PyObject *) PySequence_Repeat(PyObject *o, Py_ssize_t count); - PyAPI_FUNC(PyObject *) PySequence_GetItem(PyObject *o, Py_ssize_t i); +/* Return the ith element of o, or NULL on failure. - /* - Return the ith element of o, or NULL on failure. This is the - equivalent of the Python expression: o[i]. - */ + This is the equivalent of the Python expression: o[i]. */ +PyAPI_FUNC(PyObject *) PySequence_GetItem(PyObject *o, Py_ssize_t i); - PyAPI_FUNC(PyObject *) PySequence_GetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2); +/* Return the slice of sequence object o between i1 and i2, or NULL on failure. - /* - Return the slice of sequence object o between i1 and i2, or - NULL on failure. This is the equivalent of the Python - expression: o[i1:i2]. - */ + This is the equivalent of the Python expression: o[i1:i2]. */ +PyAPI_FUNC(PyObject *) PySequence_GetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2); - PyAPI_FUNC(int) PySequence_SetItem(PyObject *o, Py_ssize_t i, PyObject *v); +/* Assign object 'v' to the ith element of the sequence 'o'. Raise an exception + and return -1 on failure; return 0 on success. - /* - Assign object v to the ith element of o. Raise an exception and return - -1 on failure; return 0 on success. This is the equivalent of the - Python statement o[i]=v. - */ + This is the equivalent of the Python statement o[i] = v. */ +PyAPI_FUNC(int) PySequence_SetItem(PyObject *o, Py_ssize_t i, PyObject *v); - PyAPI_FUNC(int) PySequence_DelItem(PyObject *o, Py_ssize_t i); +/* Delete the 'i'-th element of the sequence 'v'. Returns -1 on failure. - /* - Delete the ith element of object v. Returns - -1 on failure. This is the equivalent of the Python - statement: del o[i]. - */ + This is the equivalent of the Python statement: del o[i]. */ +PyAPI_FUNC(int) PySequence_DelItem(PyObject *o, Py_ssize_t i); - PyAPI_FUNC(int) PySequence_SetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2, - PyObject *v); +/* Assign the sequence object 'v' to the slice in sequence object 'o', + from 'i1' to 'i2'. Returns -1 on failure. - /* - Assign the sequence object, v, to the slice in sequence - object, o, from i1 to i2. Returns -1 on failure. This is the - equivalent of the Python statement: o[i1:i2]=v. - */ + This is the equivalent of the Python statement: o[i1:i2] = v. */ +PyAPI_FUNC(int) PySequence_SetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2, + PyObject *v); - PyAPI_FUNC(int) PySequence_DelSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2); +/* Delete the slice in sequence object 'o' from 'i1' to 'i2'. + Returns -1 on failure. - /* - Delete the slice in sequence object, o, from i1 to i2. - Returns -1 on failure. This is the equivalent of the Python - statement: del o[i1:i2]. - */ + This is the equivalent of the Python statement: del o[i1:i2]. */ +PyAPI_FUNC(int) PySequence_DelSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2); - PyAPI_FUNC(PyObject *) PySequence_Tuple(PyObject *o); +/* Returns the sequence 'o' as a tuple on success, and NULL on failure. - /* - Returns the sequence, o, as a tuple on success, and NULL on failure. - This is equivalent to the Python expression: tuple(o) - */ + This is equivalent to the Python expression: tuple(o). */ +PyAPI_FUNC(PyObject *) PySequence_Tuple(PyObject *o); +/* Returns the sequence 'o' as a list on success, and NULL on failure. + This is equivalent to the Python expression: list(o) */ +PyAPI_FUNC(PyObject *) PySequence_List(PyObject *o); - PyAPI_FUNC(PyObject *) PySequence_List(PyObject *o); - /* - Returns the sequence, o, as a list on success, and NULL on failure. - This is equivalent to the Python expression: list(o) - */ +/* Return the sequence 'o' as a list, unless it's already a tuple or list. - PyAPI_FUNC(PyObject *) PySequence_Fast(PyObject *o, const char* m); - /* - Return the sequence, o, as a list, unless it's already a - tuple or list. Use PySequence_Fast_GET_ITEM to access the - members of this list, and PySequence_Fast_GET_SIZE to get its length. + Use PySequence_Fast_GET_ITEM to access the members of this list, and + PySequence_Fast_GET_SIZE to get its length. - Returns NULL on failure. If the object does not support iteration, - raises a TypeError exception with m as the message text. - */ + Returns NULL on failure. If the object does not support iteration, raises a + TypeError exception with 'm' as the message text. */ +PyAPI_FUNC(PyObject *) PySequence_Fast(PyObject *o, const char* m); +/* Return the size of the sequence 'o', assuming that 'o' was returned by + PySequence_Fast and is not NULL. */ #define PySequence_Fast_GET_SIZE(o) \ (PyList_Check(o) ? PyList_GET_SIZE(o) : PyTuple_GET_SIZE(o)) - /* - Return the size of o, assuming that o was returned by - PySequence_Fast and is not NULL. - */ +/* Return the 'i'-th element of the sequence 'o', assuming that o was returned + by PySequence_Fast, and that i is within bounds. */ #define PySequence_Fast_GET_ITEM(o, i)\ (PyList_Check(o) ? PyList_GET_ITEM(o, i) : PyTuple_GET_ITEM(o, i)) - /* - Return the ith element of o, assuming that o was returned by - PySequence_Fast, and that i is within bounds. - */ +/* Assume tp_as_sequence and sq_item exist and that 'i' does not + need to be corrected for a negative index. */ #define PySequence_ITEM(o, i)\ ( Py_TYPE(o)->tp_as_sequence->sq_item(o, i) ) - /* Assume tp_as_sequence and sq_item exist and that i does not - need to be corrected for a negative index - */ +/* Return a pointer to the underlying item array for + an object retured by PySequence_Fast */ #define PySequence_Fast_ITEMS(sf) \ (PyList_Check(sf) ? ((PyListObject *)(sf))->ob_item \ : ((PyTupleObject *)(sf))->ob_item) - /* Return a pointer to the underlying item array for - an object retured by PySequence_Fast */ - PyAPI_FUNC(Py_ssize_t) PySequence_Count(PyObject *o, PyObject *value); +/* Return the number of occurrences on value on 'o', that is, return + the number of keys for which o[key] == value. + + On failure, return -1. This is equivalent to the Python expression: + o.count(value). */ +PyAPI_FUNC(Py_ssize_t) PySequence_Count(PyObject *o, PyObject *value); - /* - Return the number of occurrences on value on o, that is, - return the number of keys for which o[key]==value. On - failure, return -1. This is equivalent to the Python - expression: o.count(value). - */ +/* Return 1 if 'ob' is in the sequence 'seq'; 0 if 'ob' is not in the sequence + 'seq'; -1 on error. - PyAPI_FUNC(int) PySequence_Contains(PyObject *seq, PyObject *ob); - /* - Return -1 if error; 1 if ob in seq; 0 if ob not in seq. - Use __contains__ if possible, else _PySequence_IterSearch(). - */ + Use __contains__ if possible, else _PySequence_IterSearch(). */ +PyAPI_FUNC(int) PySequence_Contains(PyObject *seq, PyObject *ob); #ifndef Py_LIMITED_API #define PY_ITERSEARCH_COUNT 1 #define PY_ITERSEARCH_INDEX 2 #define PY_ITERSEARCH_CONTAINS 3 - PyAPI_FUNC(Py_ssize_t) _PySequence_IterSearch(PyObject *seq, - PyObject *obj, int operation); + +/* Iterate over seq. + + Result depends on the operation: + + PY_ITERSEARCH_COUNT: return # of times obj appears in seq; -1 if + error. + PY_ITERSEARCH_INDEX: return 0-based index of first occurrence of + obj in seq; set ValueError and return -1 if none found; + also return -1 on error. + PY_ITERSEARCH_CONTAINS: return 1 if obj in seq, else 0; -1 on + error. */ +PyAPI_FUNC(Py_ssize_t) _PySequence_IterSearch(PyObject *seq, + PyObject *obj, int operation); #endif - /* - Iterate over seq. Result depends on the operation: - PY_ITERSEARCH_COUNT: return # of times obj appears in seq; -1 if - error. - PY_ITERSEARCH_INDEX: return 0-based index of first occurrence of - obj in seq; set ValueError and return -1 if none found; - also return -1 on error. - PY_ITERSEARCH_CONTAINS: return 1 if obj in seq, else 0; -1 on - error. - */ + /* For DLL-level backwards compatibility */ #undef PySequence_In - PyAPI_FUNC(int) PySequence_In(PyObject *o, PyObject *value); +/* Determine if the sequence 'o' contains 'value'. If an item in 'o' is equal + to 'value', return 1, otherwise return 0. On error, return -1. + + This is equivalent to the Python expression: value in o. */ +PyAPI_FUNC(int) PySequence_In(PyObject *o, PyObject *value); /* For source-level backwards compatibility */ #define PySequence_In PySequence_Contains - /* - Determine if o contains value. If an item in o is equal to - X, return 1, otherwise return 0. On error, return -1. This - is equivalent to the Python expression: value in o. - */ - - PyAPI_FUNC(Py_ssize_t) PySequence_Index(PyObject *o, PyObject *value); - /* - Return the first index for which o[i]=value. On error, - return -1. This is equivalent to the Python - expression: o.index(value). - */ +/* Return the first index for which o[i] == value. + On error, return -1. -/* In-place versions of some of the above Sequence functions. */ + This is equivalent to the Python expression: o.index(value). */ +PyAPI_FUNC(Py_ssize_t) PySequence_Index(PyObject *o, PyObject *value); - PyAPI_FUNC(PyObject *) PySequence_InPlaceConcat(PyObject *o1, PyObject *o2); - /* - Append o2 to o1, in-place when possible. Return the resulting - object, which could be o1, or NULL on failure. This is the - equivalent of the Python expression: o1 += o2. +/* --- In-place versions of some of the above Sequence functions --- */ - */ +/* Append sequence 'o2' to sequence 'o1', in-place when possible. Return the + resulting object, which could be 'o1', or NULL on failure. - PyAPI_FUNC(PyObject *) PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count); + This is the equivalent of the Python expression: o1 += o2. */ +PyAPI_FUNC(PyObject *) PySequence_InPlaceConcat(PyObject *o1, PyObject *o2); - /* - Repeat o1 by count, in-place when possible. Return the resulting - object, which could be o1, or NULL on failure. This is the - equivalent of the Python expression: o1 *= count. +/* Repeat sequence 'o' by 'count', in-place when possible. Return the resulting + object, which could be 'o', or NULL on failure. - */ + This is the equivalent of the Python expression: o1 *= count. */ +PyAPI_FUNC(PyObject *) PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count); -/* Mapping protocol:*/ - PyAPI_FUNC(int) PyMapping_Check(PyObject *o); +/* === Mapping protocol ================================================= */ - /* - Return 1 if the object provides mapping protocol, and zero - otherwise. +/* Return 1 if the object provides mapping protocol, and 0 otherwise. - This function always succeeds. - */ + This function always succeeds. */ +PyAPI_FUNC(int) PyMapping_Check(PyObject *o); - PyAPI_FUNC(Py_ssize_t) PyMapping_Size(PyObject *o); +/* Returns the number of keys in mapping object 'o' on success, and -1 on + failure. For objects that do not provide sequence protocol, this is + equivalent to the Python expression: len(o). */ +PyAPI_FUNC(Py_ssize_t) PyMapping_Size(PyObject *o); - /* - Returns the number of keys in object o on success, and -1 on - failure. For objects that do not provide sequence protocol, - this is equivalent to the Python expression: len(o). - */ - - /* For DLL compatibility */ +/* For DLL compatibility */ #undef PyMapping_Length - PyAPI_FUNC(Py_ssize_t) PyMapping_Length(PyObject *o); +PyAPI_FUNC(Py_ssize_t) PyMapping_Length(PyObject *o); #define PyMapping_Length PyMapping_Size - /* implemented as a macro: - - int PyMapping_DelItemString(PyObject *o, const char *key); +/* Implemented as a macro: - Remove the mapping for object, key, from the object *o. - Returns -1 on failure. This is equivalent to - the Python statement: del o[key]. - */ -#define PyMapping_DelItemString(O,K) PyObject_DelItemString((O),(K)) + int PyMapping_DelItemString(PyObject *o, const char *key); - /* implemented as a macro: + Remove the mapping for object 'key' from the mapping 'o'. Returns -1 on + failure. - int PyMapping_DelItem(PyObject *o, PyObject *key); - - Remove the mapping for object, key, from the object *o. - Returns -1 on failure. This is equivalent to - the Python statement: del o[key]. - */ -#define PyMapping_DelItem(O,K) PyObject_DelItem((O),(K)) - - PyAPI_FUNC(int) PyMapping_HasKeyString(PyObject *o, const char *key); - - /* - On success, return 1 if the mapping object has the key, key, - and 0 otherwise. This is equivalent to the Python expression: - key in o. + This is equivalent to the Python statement: del o[key]. */ +#define PyMapping_DelItemString(O,K) PyObject_DelItemString((O),(K)) - This function always succeeds. - */ +/* Implemented as a macro: - PyAPI_FUNC(int) PyMapping_HasKey(PyObject *o, PyObject *key); + int PyMapping_DelItem(PyObject *o, PyObject *key); - /* - Return 1 if the mapping object has the key, key, - and 0 otherwise. This is equivalent to the Python expression: - key in o. + Remove the mapping for object 'key' from the mapping object 'o'. + Returns -1 on failure. - This function always succeeds. + This is equivalent to the Python statement: del o[key]. */ +#define PyMapping_DelItem(O,K) PyObject_DelItem((O),(K)) - */ +/* On success, return 1 if the mapping object 'o' has the key 'key', + and 0 otherwise. - PyAPI_FUNC(PyObject *) PyMapping_Keys(PyObject *o); + This is equivalent to the Python expression: key in o. - /* - On success, return a list or tuple of the keys in object o. - On failure, return NULL. - */ + This function always succeeds. */ +PyAPI_FUNC(int) PyMapping_HasKeyString(PyObject *o, const char *key); - PyAPI_FUNC(PyObject *) PyMapping_Values(PyObject *o); +/* Return 1 if the mapping object has the key 'key', and 0 otherwise. - /* - On success, return a list or tuple of the values in object o. - On failure, return NULL. - */ + This is equivalent to the Python expression: key in o. - PyAPI_FUNC(PyObject *) PyMapping_Items(PyObject *o); + This function always succeeds. */ +PyAPI_FUNC(int) PyMapping_HasKey(PyObject *o, PyObject *key); - /* - On success, return a list or tuple of the items in object o, - where each item is a tuple containing a key-value pair. - On failure, return NULL. +/* On success, return a list or tuple of the keys in mapping object 'o'. + On failure, return NULL. */ +PyAPI_FUNC(PyObject *) PyMapping_Keys(PyObject *o); - */ +/* On success, return a list or tuple of the values in mapping object 'o'. + On failure, return NULL. */ +PyAPI_FUNC(PyObject *) PyMapping_Values(PyObject *o); - PyAPI_FUNC(PyObject *) PyMapping_GetItemString(PyObject *o, - const char *key); +/* On success, return a list or tuple of the items in mapping object 'o', + where each item is a tuple containing a key-value pair. On failure, return + NULL. */ +PyAPI_FUNC(PyObject *) PyMapping_Items(PyObject *o); - /* - Return element of o corresponding to the object, key, or NULL - on failure. This is the equivalent of the Python expression: - o[key]. - */ +/* Return element of o corresponding to the object, key, or NULL on failure. - PyAPI_FUNC(int) PyMapping_SetItemString(PyObject *o, const char *key, - PyObject *value); + This is the equivalent of the Python expression: o[key]. */ +PyAPI_FUNC(PyObject *) PyMapping_GetItemString(PyObject *o, + const char *key); - /* - Map the object, key, to the value, v. Returns - -1 on failure. This is the equivalent of the Python - statement: o[key]=v. - */ +/* Map the object 'key' to the value 'v' in the mapping 'o'. + Returns -1 on failure. + This is the equivalent of the Python statement: o[key]=v. */ +PyAPI_FUNC(int) PyMapping_SetItemString(PyObject *o, const char *key, + PyObject *value); +/* isinstance(object, typeorclass) */ PyAPI_FUNC(int) PyObject_IsInstance(PyObject *object, PyObject *typeorclass); - /* isinstance(object, typeorclass) */ +/* issubclass(object, typeorclass) */ PyAPI_FUNC(int) PyObject_IsSubclass(PyObject *object, PyObject *typeorclass); - /* issubclass(object, typeorclass) */ #ifndef Py_LIMITED_API |