fn.py VS contracts

Compare fn.py vs contracts and see what are their differences.

fn.py

Functional programming in Python: implementation of missing features to enjoy FP (by kachayev)
Functional programming
Source Code
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contracts

PyContracts is a Python package that allows to declare constraints on function parameters and return values. Contracts can be specified using Python3 annotations, or inside a docstring. PyContracts supports a basic type system, variables binding, arithmetic constraints, and has several specialized contracts and an extension API. (by AndreaCensi)
Functional programming
Source Code
andreacensi.github.io
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fn.py contracts
2 1
3,320 397
- -
0.0 0.0
over 1 year ago 9 days ago
Python Python
Apache License 2.0 GNU General Public License v3.0 or later
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fn.py

Posts with mentions or reviews of fn.py. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-12-20.

contracts

Posts with mentions or reviews of contracts. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-07-12.
  • Show HN: A design-by-contract Python package in ~100 lines
    2 projects | news.ycombinator.com | 12 Jul 2022
    Seems you refer to a domain specific language in the annotations. This is exactly what https://github.com/AndreaCensi/contracts does (it's an amazing project but has a very large code base). However, I wanted to achieve something similar in pure python and as compact as possible – so there are compromises (like no real symbolic calculus)

What are some alternatives?

When comparing fn.py and contracts you can also consider the following projects:

Toolz - A functional standard library for Python.

icontract - Design-by-contract in Python3 with informative violation messages and inheritance

funcy - A fancy and practical functional tools

classes - Smart, pythonic, ad-hoc, typed polymorphism for Python

Pyrsistent - Persistent/Immutable/Functional data structures for Python

Deal - 🤝 Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free.

Coconut - Simple, elegant, Pythonic functional programming.

CyToolz - Cython implementation of Toolz: High performance functional utilities

effect - effect isolation in Python, to facilitate more purely functional code

fn.py vs Toolz contracts vs icontract fn.py vs funcy contracts vs classes fn.py vs Pyrsistent contracts vs Deal fn.py vs Coconut contracts vs CyToolz fn.py vs CyToolz contracts vs funcy fn.py vs effect contracts vs Coconut