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37 lines
1.2 KiB
Markdown
37 lines
1.2 KiB
Markdown
---
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title: "Testing your Python Application on Multiple Versions with Pyenv and Tox"
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date: 2020-02-21T19:06:40-05:00
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draft: false
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tags: [ "Python", "Testing" ]
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medium_enabled: true
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---
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Pyenv is great for managing multiple python installations and tox is great for creating virtual environments for testing. What if we can combine the two? For more detailed information visit [Frank-Mich's Blog](https://blog.frank-mich.com/recipe-testing-multiple-python-versions-with-pyenv-and-tox/).
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First make sure [pyenv is installed](https://github.com/pyenv/pyenv-installer). In the directory with your `setup.py` tell `pyenv` which python versions you want to consider.
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```bash
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pyenv local 3.6.0 3.7.0 3.8.0
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```
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Frank warns heavily not to specify multiple python versions with the same `major.minor` numbering. For example, `3.6.0` and `3.6.10` should not be included together.
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Then install the `tox` package.
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```bash
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pip install tox
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```
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I made the mistake of making a virtual environment and then installing tox. That gets rid of the python version information we specified before.
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Now specify a `tox.ini` with a structure similar to below..
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```ini
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[tox]
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envlist =
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py36
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py37
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py38
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[testenv]
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commands =
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python3 -m unittest discover tests
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```
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