Mapping Protocol¶

intPyMapping_Check(PyObject *o)¶

Return1 if the object provides mapping protocol, and0 otherwise. Thisfunction always succeeds.

Py_ssize_tPyMapping_Size(PyObject *o)¶

Py_ssize_tPyMapping_Length(PyObject *o)¶

Returns the number of keys in objecto on success, and-1 on failure. Forobjects that do not provide mapping protocol, this is equivalent to the Pythonexpressionlen(o).

intPyMapping_DelItemString(PyObject *o, char *key)¶

Remove the mapping for objectkey from the objecto. Return-1 onfailure. This is equivalent to the Python statementdelo[key].

intPyMapping_DelItem(PyObject *o,PyObject *key)¶

Remove the mapping for objectkey from the objecto. Return-1 onfailure. This is equivalent to the Python statementdelo[key].

intPyMapping_HasKeyString(PyObject *o, char *key)¶

On success, return1 if the mapping object has the keykey and0otherwise. This is equivalent to the Python expressionkeyino.This function always succeeds.

intPyMapping_HasKey(PyObject *o,PyObject *key)¶

Return1 if the mapping object has the keykey and0 otherwise. Thisis equivalent to the Python expressionkeyino. This function alwayssucceeds.

PyObject*PyMapping_Keys(PyObject *o)¶

Return value: New reference.

On success, return a list of the keys in objecto. On failure, returnNULL.This is equivalent to the Python expressionlist(o.keys()).

PyObject*PyMapping_Values(PyObject *o)¶

Return value: New reference.

On success, return a list of the values in objecto. On failure, returnNULL. This is equivalent to the Python expressionlist(o.values()).

PyObject*PyMapping_Items(PyObject *o)¶

Return value: New reference.

On success, return a list of the items in objecto, where each item is a tuplecontaining a key-value pair. On failure, returnNULL. This is equivalent tothe Python expressionlist(o.items()).

PyObject*PyMapping_GetItemString(PyObject *o, char *key)¶

Return value: New reference.

Return element ofo corresponding to the objectkey orNULL on failure.This is the equivalent of the Python expressiono[key].

intPyMapping_SetItemString(PyObject *o, char *key,PyObject *v)¶

Map the objectkey to the valuev in objecto. Returns-1 on failure.This is the equivalent of the Python statemento[key]=v.