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# Generic programming library for Python
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[](https://github.com/gaphor/generic/actions)
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[](https://codeclimate.com/github/gaphor/generic/maintainability)
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[](https://generic.readthedocs.io/en/latest/?badge=latest)
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Generic is a library for [Generic programming ](https://en.wikipedia.org/wiki/Generic_programming ), also known as [Multiple dispatch ](https://en.wikipedia.org/wiki/Multiple_dispatch ).
The Generic library supports:
* multi-dispatch: like `functools.singledispatch` , but for more than one parameter
* multi-methods: multi-dispatch, but for methods
* event dispatching: based on a hierarchical event structure (event objects)
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You can read
[documentation ](http://generic.readthedocs.org/en/latest/index.html ) hosted at
excellent readthedocs.org project. Development takes place on
[github ](http://github.com/gaphor/generic ).
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# Changes
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## 1.1.3
- Dependency updates
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## 1.1.2
- Replace print statements with logging
- Enable trusted publisher for PyPI
- Create Security Policy
- Update LICENSE to BSD 3-Clause
- Add support for Python 3.12
- Simplify build: drop tox
- Update documentation theme to Furo
- Switch linting to ruff
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## 1.1.1
- Add support for Python 3.11
- Move mypy configuration to pyproject.toml
- Enable automatic release of new versions with CI
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## 1.1.0
- Rename `master` branch to `main`
- `generic.event.Manager` executes all handlers and throws an `ExceptionGroup` in case of errors
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## 1.0.1
- Add Support for Python 3.10, Drop Support for Python 3.7
- Enable Pre-commit Hooks for isort, toml, yaml, pyupgrade, docformatter, and flake8
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- Migrate to GitHub Actions
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## 1.0.0
- Updated documentation on [Readthedocs ](https://generic.readthedocs.io )
- Fix `multimethod.otherwise` clause
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## 1.0.0b1
- Ported the code to Python 3.7, Python 2 is no longer supported
- Multimethods now have their own module
- The interface now mimics `functools.singledispatch` :
- the `when` method has been renamed to `register`
- overriding of methods is no longer possible
## 0.3.1
- Minor fixes in distribution.
## 0.3
- Event management with event inheritance support.
## 0.2
- Methods with multidispatch by object type and positional arguments.
- Override multifunctions with ``override` ` method.
## 0.1
- Registry with simple and type axes.
- Functions with multidispatch by positional arguments.
