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28 lines
996 B
Markdown
28 lines
996 B
Markdown
---
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title: "Python Packaging: Optional Dependencies"
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date: 2020-05-01T00:43:07-04:00
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draft: false
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tags: ["Python"]
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---
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It is possible to make different package group of optional dependencies for a Python package. This is useful if you want to include an extra set of dependencies for developers/maintainers of the package. We can also define a plugin-based package similarly to how [OpenAI Gym uses it](https://github.com/openai/gym/blob/67212547ac29296839434324a0d5996e48fae840/setup.py) to denote different categories of environments you can setup.
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```python
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from setuptools import setup, find_packages
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extras = {
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'typing': ['mypy~=0.740', 'mypy-extensions~=0.4.0', 'pylint~=2.4.4'],
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'testingdocs': ['tox~=3.14.6', 'Sphinx~=3.0.1'],
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}
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# Meta dependency groups.
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extras['all'] = [item for group in extras.values() for item in group]
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setup(name='example',
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version='0.0.1',
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packages=find_packages(),
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install_requires=['Flask~=1.1.1'],
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extras_require=extras,
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)
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```
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