매핑 프로토콜
*************

"PyObject_GetItem()", "PyObject_SetItem()" 및 "PyObject_DelItem()"도
참조하십시오.

int PyMapping_Check(PyObject *o)
    * Part of the Stable ABI.*

   Return "1" if the object provides the mapping protocol or supports
   slicing, and "0" otherwise.  Note that it returns "1" for Python
   classes with a "__getitem__()" method, since in general it is
   impossible to determine what type of keys the class supports. This
   function always succeeds.

Py_ssize_t PyMapping_Size(PyObject *o)
Py_ssize_t PyMapping_Length(PyObject *o)
    * Part of the Stable ABI.*

   성공 시 객체 *o*의 키 수를 반환하고, 실패하면 "-1"을 반환합니다. 이
   는 파이썬 표현식 "len(o)"와 동등합니다.

PyObject *PyMapping_GetItemString(PyObject *o, const char *key)
    *Return value: New reference.** Part of the Stable ABI.*

   This is the same as "PyObject_GetItem()", but *key* is specified as
   a const char* UTF-8 encoded bytes string, rather than a PyObject*.

int PyMapping_GetOptionalItem(PyObject *obj, PyObject *key, PyObject **result)
    * Part of the Stable ABI since version 3.13.*

   Variant of "PyObject_GetItem()" which doesn't raise "KeyError" if
   the key is not found.

   If the key is found, return "1" and set **result* to a new *strong
   reference* to the corresponding value. If the key is not found,
   return "0" and set **result* to "NULL"; the "KeyError" is silenced.
   If an error other than "KeyError" is raised, return "-1" and set
   **result* to "NULL".

   Added in version 3.13.

int PyMapping_GetOptionalItemString(PyObject *obj, const char *key, PyObject **result)
    * Part of the Stable ABI since version 3.13.*

   This is the same as "PyMapping_GetOptionalItem()", but *key* is
   specified as a const char* UTF-8 encoded bytes string, rather than
   a PyObject*.

   Added in version 3.13.

int PyMapping_SetItemString(PyObject *o, const char *key, PyObject *v)
    * Part of the Stable ABI.*

   This is the same as "PyObject_SetItem()", but *key* is specified as
   a const char* UTF-8 encoded bytes string, rather than a PyObject*.

int PyMapping_DelItem(PyObject *o, PyObject *key)

   This is an alias of "PyObject_DelItem()".

int PyMapping_DelItemString(PyObject *o, const char *key)

   This is the same as "PyObject_DelItem()", but *key* is specified as
   a const char* UTF-8 encoded bytes string, rather than a PyObject*.

int PyMapping_HasKeyWithError(PyObject *o, PyObject *key)
    * Part of the Stable ABI since version 3.13.*

   Return "1" if the mapping object has the key *key* and "0"
   otherwise. This is equivalent to the Python expression "key in o".
   On failure, return "-1".

   Added in version 3.13.

int PyMapping_HasKeyStringWithError(PyObject *o, const char *key)
    * Part of the Stable ABI since version 3.13.*

   This is the same as "PyMapping_HasKeyWithError()", but *key* is
   specified as a const char* UTF-8 encoded bytes string, rather than
   a PyObject*.

   Added in version 3.13.

int PyMapping_HasKey(PyObject *o, PyObject *key)
    * Part of the Stable ABI.*

   매핑 객체에 *key* 키가 있으면 "1"을 반환하고, 그렇지 않으면 "0"을
   반환합니다. 이는 파이썬 표현식 "key in o"와 동등합니다. 이 함수는
   항상 성공합니다.

   참고:

     Exceptions which occur when this calls "__getitem__()" method are
     silently ignored. For proper error handling, use
     "PyMapping_HasKeyWithError()", "PyMapping_GetOptionalItem()" or
     "PyObject_GetItem()" instead.

int PyMapping_HasKeyString(PyObject *o, const char *key)
    * Part of the Stable ABI.*

   This is the same as "PyMapping_HasKey()", but *key* is specified as
   a const char* UTF-8 encoded bytes string, rather than a PyObject*.

   참고:

     Exceptions that occur when this calls "__getitem__()" method or
     while creating the temporary "str" object are silently ignored.
     For proper error handling, use
     "PyMapping_HasKeyStringWithError()",
     "PyMapping_GetOptionalItemString()" or
     "PyMapping_GetItemString()" instead.

PyObject *PyMapping_Keys(PyObject *o)
    *Return value: New reference.** Part of the Stable ABI.*

   성공하면, 객체 *o*의 키 리스트를 반환합니다. 실패하면, "NULL"을 반
   환합니다.

   버전 3.7에서 변경: 이전에는 함수가 리스트나 튜플을 반환했습니다.

PyObject *PyMapping_Values(PyObject *o)
    *Return value: New reference.** Part of the Stable ABI.*

   성공하면, 객체 *o*의 값 리스트를 반환합니다. 실패하면, "NULL"을 반
   환합니다.

   버전 3.7에서 변경: 이전에는 함수가 리스트나 튜플을 반환했습니다.

PyObject *PyMapping_Items(PyObject *o)
    *Return value: New reference.** Part of the Stable ABI.*

   성공하면, 객체 *o*에 있는 항목 리스트를 반환합니다. 여기서 각 항목
   은 키-값 쌍을 포함하는 튜플입니다. 실패하면, "NULL"을 반환합니다.

   버전 3.7에서 변경: 이전에는 함수가 리스트나 튜플을 반환했습니다.
