identity-containers 1.1.0

Dicts and Sets that hash items based on identity instead of value

Introduction

This module implements dicts and sets that compare items based on identity rather than value. This allows them to store unhashable objects.

Usage example:

from identity_containers import IdentitySet

foo = []
bar = []

id_set = IdentitySet([foo])

print(foo in id_set)  # True
print(bar in id_set)  # False

The following classes exist:

• IdentitySet
• IdentityDict
• IdentityDefaultDict
• IdentityWeakKeyDict