Summary: Persistent/Functional/Immutable data structures

Description:
Pyrsistent is a number of persistent collections (by some referred to as
functional data structures). Persistent in the sense that they are immutable.

All methods on a data structure that would normally mutate it instead return
a new copy of the structure containing the requested updates. The original
structure is left untouched.

URL: https://pypi.org/project/pyrsistent
License: MIT

Maintainer: nobody