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)
classes
Smart, pythonic, ad-hoc, typed polymorphism for Python (by dry-python)
| contracts | classes | |
|---|---|---|
| 1 | 4 | |
| 397 | 641 | |
| - | 0.3% | |
| 0.0 | 2.0 | |
| 8 days ago | 11 months 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)
classes
Posts with mentions or reviews of classes.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-07-08.
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Typeclasses in Python
Today I am going to introduce a new concept for Python developers: typeclasses. It is a concept behind our new dry-python library called classes.
- dry-python/classes: Smart, pythonic, ad-hoc, typed polymorphism for Python. Also known as singledispatch on steroids
- Smart, pythonic, ad-hoc, typed polymorphism for Python
What are some alternatives?
When comparing contracts and classes you can also consider the following projects:
icontract - Design-by-contract in Python3 with informative violation messages and inheritance
Deal - 🤝 Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free.
fn.py - Functional programming in Python: implementation of missing features to enjoy FP
CyToolz - Cython implementation of Toolz: High performance functional utilities
Toolz - A functional standard library for Python.
funcy - A fancy and practical functional tools
returns - Make your functions return something meaningful, typed, and safe!
Coconut - Simple, elegant, Pythonic functional programming.
effect - effect isolation in Python, to facilitate more purely functional code