80 lines
2.4 KiB
Markdown
80 lines
2.4 KiB
Markdown
|
# Python Development Guidelines
|
||
|
|
|
||
|
|
GitLab requires Python as a dependency for [reStructuredText](http://docutils.sourceforge.net/rst.html)
|
||
|
|
markup rendering.
|
||
|
|
|
||
|
|
As of GitLab 11.10, we require Python 3.
|
||
|
|
|
||
|
|
## Installation
|
||
|
|
|
||
|
|
There are several ways of installing python on your system. To be able to use the same version we use in production,
|
||
|
|
we suggest you use [pyenv](https://github.com/pyenv/pyenv). It works and behave similar to its counterpart in the
|
||
|
|
ruby world: [rbenv](https://github.com/rbenv/rbenv).
|
||
|
|
|
||
|
|
### macOS
|
||
|
|
|
||
|
|
To install `pyenv` on macOS, you can use [Homebrew](https://brew.sh/) with:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
brew install pyenv
|
||
|
|
```
|
||
|
|
|
||
|
|
### Linux
|
||
|
|
|
||
|
|
To install `pyenv` on Linux, you can run the command below:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
curl https://pyenv.run | bash
|
||
|
|
```
|
||
|
|
|
||
|
|
Alternatively, you may find `pypenv` available as a system package via your distro package manager.
|
||
|
|
|
||
|
|
You can read more about it in: <https://github.com/pyenv/pyenv-installer#prerequisites>.
|
||
|
|
|
||
|
|
### Shell integration
|
||
|
|
|
||
|
|
Pyenv installation will add required changes to Bash. If you use a different shell,
|
||
|
|
check for any additional steps required for it.
|
||
|
|
|
||
|
|
For Fish, you can install a plugin for [Fisherman](https://github.com/fisherman/fisherman):
|
||
|
|
|
||
|
|
```bash
|
||
|
|
fisher add fisherman/pyenv
|
||
|
|
```
|
||
|
|
|
||
|
|
Or for [Oh My Fish](https://github.com/oh-my-fish/oh-my-fish):
|
||
|
|
|
||
|
|
```bash
|
||
|
|
omf install pyenv
|
||
|
|
```
|
||
|
|
|
||
|
|
## Dependency management
|
||
|
|
|
||
|
|
While GitLab doesn't directly contain any Python scripts, because we depend on Python to render
|
||
|
|
[reStructuredText](http://docutils.sourceforge.net/rst.html) markup, we need to keep track on dependencies
|
||
|
|
on the main project level, so we can run that on our development machines.
|
||
|
|
|
||
|
|
Recently, an equivalent to the `Gemfile` and the [Bundler](https://bundler.io/) project has been introduced to Python:
|
||
|
|
`Pipfile` and [Pipenv](https://pipenv.readthedocs.io/en/latest/).
|
||
|
|
|
||
|
|
You will now find a `Pipfile` with the dependencies in the root folder. To install them, run:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
pipenv install
|
||
|
|
```
|
||
|
|
|
||
|
|
Running this command will install both the required Python version as well as required pip dependencies.
|
||
|
|
|
||
|
|
## Use instructions
|
||
|
|
|
||
|
|
To run any python code under the Pipenv environment, you need to first start a `virtualenv` based on the dependencies
|
||
|
|
of the application. With Pipenv, this is a simple as running:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
pipenv shell
|
||
|
|
```
|
||
|
|
|
||
|
|
After running that command, you can run GitLab on the same shell and it will be using the Python and dependencies
|
||
|
|
installed from the `pipenv install` command.
|
||
|
|
|