Effect is a library for helping you write purely functional code by isolating
the effects (that is, IO or state manipulation) in your code. Documentation is
available at https://effect.readthedocs.org/, and its PyPI page is
It supports Python 2.7, 3.4 and 3.5 as well as PyPy.
You can install it by running pip install effect.
effect alternatives and similar packages
Based on the "Functional Programming" category
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