mirror of
https://github.com/Crocmagnon/blog.git
synced 2024-11-25 01:08:04 +01:00
39 lines
2 KiB
Markdown
39 lines
2 KiB
Markdown
---
|
|
title: "How to use pipx with pyenv"
|
|
tags: ['pipx', 'pyenv', 'python']
|
|
date: 2020-12-30T08:40:58.362871+00:00
|
|
aliases: ["/how-use-pipx-pyenv"]
|
|
---
|
|
## 👨🏻💻 TL;DR
|
|
|
|
In my case with `fish` I added this line to my `config.fish`:
|
|
|
|
```fish
|
|
set -gx PIPX_DEFAULT_PYTHON "$HOME/.pyenv/versions/3.8.5/bin/python"
|
|
```
|
|
|
|
It's roughly the bash equivalent for
|
|
|
|
```bash
|
|
export PIPX_DEFAULT_PYTHON="$HOME/.pyenv/versions/3.8.5/bin/python"
|
|
```
|
|
|
|
## 📖 Backstory
|
|
|
|
As a Python developer, my workflow often involves running multiple versions of Python on different projects. To help me in this task, I use [`pyenv`](https://github.com/pyenv/pyenv) which is a wonderful tool to easily install and manage multiple Python versions on your system.
|
|
|
|
I also have a Python version installed via [Homebrew][brew] for some formulae that require it. This version is the default for any script if pyenv doesn't specify any version.
|
|
|
|
[brew]: https://brew.sh/
|
|
|
|
Finally, I also use [`pipx`](https://pipxproject.github.io/pipx/) which allows me to install python packages in their own virtual environment without messing with my system installation and still have them ready for use on the command line.
|
|
|
|
My problem is that `pipx` will by default use the Python version provided by Homebrew to install the executables. As I keep my system up to date with Homebrew, the Python version often updates. When that happens, all of my `pipx` packages break and I have to reinstall them all. Granted, `pipx` provides a command to do that easily but I'd still like to avoid the operation.
|
|
|
|
Thankfully, as [documented](https://pipxproject.github.io/pipx/docs/)[^1], `pipx` supports an environment variable called `PIPX_DEFAULT_PYTHON`. You just need to point it to your preferred Python interpreter and be done with it!
|
|
|
|
[^1]: Also available when running `pipx --help`
|
|
|
|
{{< note class="info" title="Update" >}}
|
|
I've now [switched]({{< ref "setup-rtx-with-direnv-for-python/" >}}) from `pyenv` to `rtx` but the concept remains the same: install python with `rtx`, then set `PIPX_DEFAULT_PYTHON`.
|
|
{{< /note >}}
|