Deal
🤝 Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free. (by life4)
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)
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| Deal | contracts | |
|---|---|---|
| 9 | 1 | |
| 690 | 397 | |
| 4.3% | - | |
| 6.4 | 0.0 | |
| about 1 month ago | 5 days ago | |
| Python | Python | |
| MIT License | GNU General Public License v3.0 or later |
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.
Deal
Posts with mentions or reviews of Deal.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-03.
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What features would you want in a new programming language?
I started using a design by contract library for a Python project this year and it made my code safer and easier to use.
- deal: Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free.
- GitHub - life4/deal: Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free.
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Design By Contract
Have you used Design by Contract in Python projects before? I know that it isn't a first class feature of the language but I see some libraries out there (this one seems potentially promising). Just wondering what the pros and cons are when it comes to gluing DBC onto Python and if anyone can give a yea or nay to it.
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Make tests a part of your app
deal is a library for Design-by-Contract.
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)
What are some alternatives?
When comparing Deal and contracts you can also consider the following projects:
returns - Make your functions return something meaningful, typed, and safe!
icontract - Design-by-contract in Python3 with informative violation messages and inheritance
Pyrsistent - Persistent/Immutable/Functional data structures for Python
classes - Smart, pythonic, ad-hoc, typed polymorphism for Python
Toolz - A functional standard library for Python.
CyToolz - Cython implementation of Toolz: High performance functional utilities
funcy - A fancy and practical functional tools
Coconut - Simple, elegant, Pythonic functional programming.
fn.py - Functional programming in Python: implementation of missing features to enjoy FP