Add docs for python_script

source/_components/python_script.markdown

@@ -0,0 +1,36 @@
+---
+layout: page
+title: "Python Scripts"
+description: "Instructions how to setup Python scripts within Home Assistant."
+date: 2017-06-15 19:59
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: home-assistant.png
+ha_category: Automation
+ha_release: 0.47
+---
+
+This component allows you to write Python scripts that are exposed as services in Home Assistant. Each Python file created in the `<config>/python_scripts/` folder will be exposed as a service. The content is not cached so you can easily develop: edit file, save changes, call service. The scripts are run in a sandboxed environment with access to the `hass` object, the service call data as `data` and a logger as `logger`.
+
+## {% linkable_title Writing your first script %}
+
+ - Add to `configuration.yaml`: `python_script:`
+ - Create folder `<config>/python_scripts`
+ - Create a file `hello_world.py` in the folder and give it this content:
+
+```python
+name = data.get('name', 'world')
+logger.info("Hello {}".format(name))
+hass.bus.fire(name, { "wow": "from a Python script!" })
+```
+
+ - Start Home Assistant
+ - Call service `python_script/hello_world` with parameters
+
+```json
+{
+  "name": "you"
+}
+```