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)
returns
Make your functions return something meaningful, typed, and safe! (by dry-python)
contracts | returns | |
---|---|---|
1 | 20 | |
397 | 3,304 | |
- | 2.2% | |
0.0 | 9.1 | |
9 days ago | about 19 hours ago | |
Python | Python | |
GNU General Public License v3.0 or later | BSD 2-clause "Simplified" License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
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.
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Show HN: A design-by-contract Python package in ~100 lines
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)
returns
Posts with mentions or reviews of returns.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-02-23.
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This Week in Python (February 23, 2024)
returns – Make your functions return something meaningful, typed, and safe
- Python Functional Programming with returns library (type-safety, monads, etc.)
- GitHub - dry-python/returns: Make your functions return something meaningful, typed, and safe!
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[Media] Rust Results in Python :D
you haven’t heard of https://github.com/dry-python/returns
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Unleash the Power of Python Monads: A Design Pattern for Elegant Code!
returns from the DRY python group appears to offer similar functionality.
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Rust's Option and Result. In Python.
Not to diminish this at all, but https://github.com/dry-python/returns also exists. The scope is wider, but the look and feel of the types feels very similar.
- Functional python for data process
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Faif/Python-patterns: A collection of design patterns/idioms in Python
https://github.com/dry-python/returns#maybe-container
You can decide for yourself what is more readable: all these lambdas or the `None and f()` code.
- Show HN: Koda, a Typesafe Functional Toolkit for Python
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Python/Pandas equivalent of CTE in SQL?
There is a Python library called returns (https://github.com/dry-python/returns) that allows you to write functional code in Python
What are some alternatives?
When comparing contracts and returns you can also consider the following projects:
icontract - Design-by-contract in Python3 with informative violation messages and inheritance
Toolz - A functional standard library for Python.
classes - Smart, pythonic, ad-hoc, typed polymorphism for Python
CyToolz - Cython implementation of Toolz: High performance functional utilities
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.
funcy - A fancy and practical functional tools
fn.py - Functional programming in Python: implementation of missing features to enjoy FP