Mapping Protocol

See also PyObject_GetItem, PyObject_SetItem and PyObject_DelItem.

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 ~object.__getitem__ method, since in general it is impossible to determine what type of keys the class supports. This function always succeeds.

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

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.

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*.

3.13

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

This is an alias of PyObject_DelItem.

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

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.

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*.

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. This function always succeeds.

[!NOTE] Exceptions which occur when this calls the ~object.__getitem__ method are silently ignored. For proper error handling, use PyMapping_HasKeyWithError, PyMapping_GetOptionalItem or PyObject_GetItem() instead.

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

[!NOTE] Exceptions that occur when this calls the ~object.__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.

On success, return a list of the keys in object o. On failure, return NULL.

3.7 Previously, the function returned a list or a tuple.

On success, return a list of the values in object o. On failure, return NULL.

3.7 Previously, the function returned a list or a tuple.

On success, return a list of the items in object o, where each item is a tuple containing a key-value pair. On failure, return NULL.

3.7 Previously, the function returned a list or a tuple.