pandas.api.types.is_hashable#

pandas.api.types.is_hashable(obj)[source]#

Return True if hash(obj) will succeed, False otherwise.

Some types will pass a test against collections.abc.Hashable but fail when they are actually hashed with hash().

Distinguish between these and other types by trying the call to hash() and seeing if they raise TypeError.

Parameters:

objobject: The object to check for hashability. Any Python object can be passed here.

Returns:

bool: True if object can be hashed (i.e., does not raise TypeError when passed to hash()), and False otherwise (e.g., if object is mutable like a list or dictionary).

See also

api.types.is_float: Return True if given object is float.
api.types.is_iterator: Check if the object is an iterator.
api.types.is_list_like: Check if the object is list-like.
api.types.is_dict_like: Check if the object is dict-like.

Examples

>>> import collections
>>> from pandas.api.types import is_hashable
>>> a = ([],)
>>> isinstance(a, collections.abc.Hashable)
True
>>> is_hashable(a)
False