49 lines
1.9 KiB
Markdown
49 lines
1.9 KiB
Markdown
# asdf-python
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[](https://travis-ci.org/danhper/asdf-python)
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Python plugin for [asdf](https://github.com/asdf-vm/asdf) version manager
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## Install
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```
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asdf plugin-add python https://github.com/danhper/asdf-python.git
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```
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## Use
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Check [asdf](https://github.com/asdf-vm/asdf) readme for instructions on how to install & manage versions of Python.
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Please make sure you have the required [system dependencies](https://github.com/pyenv/pyenv/wiki#suggested-build-environment) installed before trying to install Python.
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Under the hood, asdf-python uses [python-build](https://github.com/yyuu/pyenv/tree/master/plugins/python-build)
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to build and install Python, check its [README](https://github.com/yyuu/pyenv/tree/master/plugins/python-build)
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for more information about build options and the [common build problems](https://github.com/pyenv/pyenv/wiki/Common-build-problems) wiki page for any issues encountered during installation of python versions.
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## Using multiple versions of Python
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A common request for Python is being able to use the `python2` and `python3` commands without needing to switch version.
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This can be achieved by setting multiple versions of Python, for example with
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```
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asdf global python 3.6.2 2.7.13
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```
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This feature is experimental but should be working well enough for most use cases. Incidentally, the first python version you install will claim `python`. With the above example:
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```
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python -V
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Python 3.6.3
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python3 -V
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Python 3.6.3
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python2 -V
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2.7.13
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```
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In some cases, you might want python2 and python3 to co-exist, but python needs to point at a specific python version. The order of python versions is what controls this.
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## Pip installed modules and binaries
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If you use pip to install a module like ipython that has a binaries. You will need to run `asdf reshim python` for the binary to be in your path.
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