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asdf-python

★ 728 Open GitHub ↗

Python plugin for the asdf version manager [maintainer=@danhper]

// repository documentation

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# asdf-python

[![Build Status](https://travis-ci.org/danhper/asdf-python.svg?branch=master)](https://travis-ci.org/danhper/asdf-python)

Python plugin for [asdf](https://github.com/asdf-vm/asdf) version manager

## Install

```
asdf plugin add python https://github.com/asdf-community/asdf-python.git
```

For pre-0.16.0 asdf versions:

```
asdf plugin-add python https://github.com/asdf-community/asdf-python.git
```

### Install with `--patch`

> Enable to fix macOS 11 issues

You can use environment variable `ASDF_PYTHON_PATCH_URL` to install with `--patch` like that:

```
export ASDF_PYTHON_PATCH_URL="https://github.com/python/cpython/commit/8ea6353.patch?full_index=1"
asdf install python 3.6.12
```

or use environment variable `ASDF_PYTHON_PATCHES_DIRECTORY`.

## Use

Check [asdf](https://github.com/asdf-vm/asdf) readme for instructions on how to install & manage versions of Python.
Please make sure you have the required [system dependencies](https://github.com/pyenv/pyenv/wiki#suggested-build-environment) installed before trying to install Python.

Under the hood, asdf-python uses [pyenv python-build](https://github.com/yyuu/pyenv/tree/master/plugins/python-build) to build and install Python.
Check its [README](https://github.com/yyuu/pyenv/tree/master/plugins/python-build) 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. You may also want to check [Python's official setup building section](https://devguide.python.org/getting-started/setup-building/#install-dependencies) for latest version dependencies.

## Ubuntu

For Ubuntu 20 and 22

```
sudo apt-get update; sudo apt-get install make build-essential libssl-dev zlib1g-dev \
libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
```

then

```
asdf install python latest
```

## Using multiple versions of Python

A common request for Python is being able to use the `python2` and `python3` commands without needing to switch version.
This can be achieved by setting multiple versions of Python, for example with

```
asdf set -u python 3.6.2 2.7.13
```

For pre-0.16.0 asdf versions:

```
asdf global python 3.6.2 2.7.13
```

Executables in the first version will take priority over the executables in the next one. Note that you can use an arbitrary number over versions, if needed.
With the above example, `python` will therefore use the `python` executable found in version 3.6.2.
However, as the `python2` does not exist in Python 3.6.2, `python2` will use the `python2` executable found in version 2.7.13.

```
python -V
Python 3.6.2

python3 -V
Python 3.6.2

python2 -V
Python 2.7.13
```

## Pip installed modules and binaries

If you use pip to install a module like ipython that has binaries, you will need to run `asdf reshim python` for the binary to be in your path.

## Default Python packages

asdf-python can automatically install a default set of Python packages with pip right after installing a Python version. To enable this feature, provide a `$HOME/.default-python-packages` file that lists one package per line, for example:

```
ansible
pipenv
```

You can specify a non-default location of this file by setting a `ASDF_PYTHON_DEFAULT_PACKAGES_FILE` variable.

asdf-python

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