Add 'uv' as an alternative to 'Pyenv' for Python versioning

sites/upsun/src/languages/python/python-version.md

@@ -10,8 +10,67 @@ description: See how to manage different Python versions in your {{% vendor/name
 You may need to use a specific version of Python that isn't available in an app container for a different language.
 For example, a container might have a long-term support version, while you want the latest version.
 
-In such cases, use the [Pyenv version manager](https://github.com/pyenv/pyenv)
-to install the specific version you want to use.
+In such cases, use [uv](https://docs.astral.sh/uv/) or [Pyenv](https://github.com/pyenv/pyenv) version manager to install the specific version you want to use.
+
+## uv
+
+1.  Add your target Python version as a [variable](../../development/variables/_index.md):
+
+```yaml {configFile="app"}
+applications:
+  # The app's name, which must be unique within the project.
+  myapp:
+    type: 'php:{{% latest "php" %}}'
+    variables:
+      env:
+        # Update for your desired Python version.
+        PYTHON_VERSION: "3.11"
+```
+2.  Add uv in a [`build` hook](../../create-apps/hooks/hooks-comparison.md#build-hook):
+
+```yaml {configFile="app"}
+applications:
+  # The app's name, which must be unique within the project.
+  myapp:
+    type: 'php:{{% latest "php" %}}'
+    variables:
+      env:
+        # Update for your desired Python version.
+        PYTHON_VERSION: "3.11"
+    hooks:
+      build: |
+        # Exit the hook on any failure
+        set -e
+
+        # Install uv
+        curl -LsSf https://astral.sh/uv/install.sh | sh
+
+        # Install a specific Python version
+        /app/.local/bin/uv python install $PYTHON_VERSION
+
+        # Install a package using specific Python version
+        /app/.local/bin/uv tool install --python $PYTHON_VERSION weasyprint
+```
+Now your build hook can use the specified version of Python.
+You can verify this by running `python --version`.
+
+If you want this Python version to be available in the runtime environment, follow these steps:
+
+1.  Create an [`.environment` file](../../development/variables/set-variables.md#set-variables-via-script):
+
+    ```bash
+    touch .environment
+    ```
+
+2.  Alias python for the runtime environment:
+
+    ```yaml {location=".environment"}
+    alias python=/app/.local/bin/python3.11
+    ```
+
+Now the specified Python version is used in the runtime environment.
+
+## Pyenv
 
 1.  Add your target Python version as a [variable](../../development/variables/_index.md):