Docusaurus-ify 1.20 (#26052)

See https://github.com/go-gitea/gitea/pull/26051

---------

Signed-off-by: jolheiser <john.olheiser@gmail.com>
Co-authored-by: JonRB <4564448+eeyrjmr@users.noreply.github.com>

docs/content/usage/packages/pypi.en-us.md

@@ -0,0 +1,84 @@
+---
+date: "2021-07-20T00:00:00+00:00"
+title: "PyPI Package Registry"
+slug: "pypi"
+sidebar_position: 100
+draft: false
+toc: false
+menu:
+  sidebar:
+    parent: "packages"
+    name: "PyPI"
+    sidebar_position: 100
+    identifier: "pypi"
+---
+
+# PyPI Package Registry
+
+Publish [PyPI](https://pypi.org/) packages for your user or organization.
+
+## Requirements
+
+To work with the PyPI package registry, you need to use the tools [pip](https://pypi.org/project/pip/) to consume and [twine](https://pypi.org/project/twine/) to publish packages.
+
+## Configuring the package registry
+
+To register the package registry you need to edit your local `~/.pypirc` file. Add
+
+```ini
+[distutils]
+index-servers = gitea
+
+[gitea]
+repository = https://gitea.example.com/api/packages/{owner}/pypi
+username = {username}
+password = {password}
+```
+
+| Placeholder  | Description |
+| ------------ | ----------- |
+| `owner`      | The owner of the package. |
+| `username`   | Your Gitea username. |
+| `password`   | Your Gitea password. If you are using 2FA or OAuth use a [personal access token](development/api-usage.md#authentication) instead of the password. |
+
+## Publish a package
+
+Publish a package by running the following command:
+
+```shell
+python3 -m twine upload --repository gitea /path/to/files/*
+```
+
+The package files have the extensions `.tar.gz` and `.whl`.
+
+You cannot publish a package if a package of the same name and version already exists. You must delete the existing package first.
+
+## Install a package
+
+To install a PyPI package from the package registry, execute the following command:
+
+```shell
+pip install --index-url https://{username}:{password}@gitea.example.com/api/packages/{owner}/pypi/simple --no-deps {package_name}
+```
+
+| Parameter         | Description |
+| ----------------- | ----------- |
+| `username`        | Your Gitea username. |
+| `password`        | Your Gitea password or a personal access token. |
+| `owner`           | The owner of the package. |
+| `package_name`    | The package name. |
+
+For example:
+
+```shell
+pip install --index-url https://testuser:password123@gitea.example.com/api/packages/testuser/pypi/simple --no-deps test_package
+```
+
+You can use `--extra-index-url` instead of `--index-url` but that makes you vulnerable to dependency confusion attacks because `pip` checks the official PyPi repository for the package before it checks the specified custom repository. Read the `pip` docs for more information.
+
+## Supported commands
+
+```
+pip install
+twine upload
+```