How To Detect a Hashable Object in Python

The hash() function returns the hash value for the given object. With that function, there are two ways to test if an object is hashable:

1. Using a try/except block;
2. Using the isinstance() function with typing.Hashable.

try/except Block

try:
    hash(my_object) # Attempt to hash the object
    print("My object is hashable.")
except TypeError:
    print("My object is not hashable.")

You could also try to add the object to a set instead of using the hash() function.

isinstance() With typing.Hashable

import typing


if isinstance(my_object, typing.Hashable):
    print("My object is hashable.")
else:
    print("My object is not hashable.")