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cdef extern from "Python.h":
############################################################################
# 6.4 Mapping Protocol
############################################################################
bint PyMapping_Check(object o)
# Return 1 if the object provides mapping protocol, and 0
# otherwise. This function always succeeds.
Py_ssize_t PyMapping_Length(object o) except -1
# Returns the number of keys in object o on success, and -1 on
# failure. For objects that do not provide mapping protocol, this
# is equivalent to the Python expression "len(o)".
int PyMapping_DelItemString(object o, char *key) except -1
# Remove the mapping for object key from the object o. Return -1
# on failure. This is equivalent to the Python statement "del
# o[key]".
int PyMapping_DelItem(object o, object key) except -1
# Remove the mapping for object key from the object o. Return -1
# on failure. This is equivalent to the Python statement "del
# o[key]".
bint PyMapping_HasKeyString(object o, char *key)
# On success, return 1 if the mapping object has the key key and 0
# otherwise. This is equivalent to the Python expression
# "o.has_key(key)". This function always succeeds.
bint PyMapping_HasKey(object o, object key)
# Return 1 if the mapping object has the key key and 0
# otherwise. This is equivalent to the Python expression
# "o.has_key(key)". This function always succeeds.
object PyMapping_Keys(object o)
# Return value: New reference.
# On success, return a list of the keys in object o. On failure,
# return NULL. This is equivalent to the Python expression
# "o.keys()".
object PyMapping_Values(object o)
# Return value: New reference.
# On success, return a list of the values in object o. On failure,
# return NULL. This is equivalent to the Python expression
# "o.values()".
object PyMapping_Items(object o)
# Return value: New reference.
# 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. This is equivalent to the Python expression "o.items()".
object PyMapping_GetItemString(object o, char *key)
# Return value: New reference.
# Return element of o corresponding to the object key or NULL on
# failure. This is the equivalent of the Python expression
# "o[key]".
int PyMapping_SetItemString(object o, char *key, object v) except -1
# Map the object key to the value v in object o. Returns -1 on
# failure. This is the equivalent of the Python statement "o[key]
# = v".
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