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| Metadata-Version: 2.1 | |
| Name: typing_extensions | |
| Version: 4.8.0 | |
| Summary: Backported and Experimental Type Hints for Python 3.8+ | |
| Keywords: annotations,backport,checker,checking,function,hinting,hints,type,typechecking,typehinting,typehints,typing | |
| Author-email: "Guido van Rossum, Jukka Lehtosalo, Łukasz Langa, Michael Lee" <[email protected]> | |
| Requires-Python: >=3.8 | |
| Description-Content-Type: text/markdown | |
| Classifier: Development Status :: 5 - Production/Stable | |
| Classifier: Environment :: Console | |
| Classifier: Intended Audience :: Developers | |
| Classifier: License :: OSI Approved :: Python Software Foundation License | |
| Classifier: Operating System :: OS Independent | |
| Classifier: Programming Language :: Python :: 3 | |
| Classifier: Programming Language :: Python :: 3 :: Only | |
| Classifier: Programming Language :: Python :: 3.8 | |
| Classifier: Programming Language :: Python :: 3.9 | |
| Classifier: Programming Language :: Python :: 3.10 | |
| Classifier: Programming Language :: Python :: 3.11 | |
| Classifier: Programming Language :: Python :: 3.12 | |
| Classifier: Topic :: Software Development | |
| Project-URL: Bug Tracker, https://github.com/python/typing_extensions/issues | |
| Project-URL: Changes, https://github.com/python/typing_extensions/blob/main/CHANGELOG.md | |
| Project-URL: Documentation, https://typing-extensions.readthedocs.io/ | |
| Project-URL: Home, https://github.com/python/typing_extensions | |
| Project-URL: Q & A, https://github.com/python/typing/discussions | |
| Project-URL: Repository, https://github.com/python/typing_extensions | |
| # Typing Extensions | |
| [](https://gitter.im/python/typing) | |
| [Documentation](https://typing-extensions.readthedocs.io/en/latest/#) – | |
| [PyPI](https://pypi.org/project/typing-extensions/) | |
| ## Overview | |
| The `typing_extensions` module serves two related purposes: | |
| - Enable use of new type system features on older Python versions. For example, | |
| `typing.TypeGuard` is new in Python 3.10, but `typing_extensions` allows | |
| users on previous Python versions to use it too. | |
| - Enable experimentation with new type system PEPs before they are accepted and | |
| added to the `typing` module. | |
| `typing_extensions` is treated specially by static type checkers such as | |
| mypy and pyright. Objects defined in `typing_extensions` are treated the same | |
| way as equivalent forms in `typing`. | |
| `typing_extensions` uses | |
| [Semantic Versioning](https://semver.org/). The | |
| major version will be incremented only for backwards-incompatible changes. | |
| Therefore, it's safe to depend | |
| on `typing_extensions` like this: `typing_extensions >=x.y, <(x+1)`, | |
| where `x.y` is the first version that includes all features you need. | |
| ## Included items | |
| See [the documentation](https://typing-extensions.readthedocs.io/en/latest/#) for a | |
| complete listing of module contents. | |
| ## Contributing | |
| See [CONTRIBUTING.md](https://github.com/python/typing_extensions/blob/main/CONTRIBUTING.md) | |
| for how to contribute to `typing_extensions`. | |