DubhAd 5587190866 Added note about venv upgrade (#5030)
* Added note about venv upgrade

Added a note that if you've upgraded Python you'll need to rebuild the venv.

* Minor changes

* Replace short version
2018-03-29 09:23:20 +02:00

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---
layout: page
title: "Installation in Python virtual environment"
description: "How to install Home Assistant in a Python virtual environment."
date: 2016-4-16 16:40
sidebar: true
comments: false
sharing: true
footer: true
redirect_from: /getting-started/installation-virtualenv/
---
If you already have Python 3.5.3 or later installed, you can easily give Home Assistant a spin.
It's recommended when installing Python packages that you use a [virtual environment](https://docs.python.org/3.5/library/venv.html#module-venv). This will make sure that your Python installation and Home Assistant installation won't impact one another. The following steps will work on most unix like systems.
_(If you're on a Debian based system, you will need to install Python virtual environment support using `apt-get install python3-pip python3-venv`.)_
<p class='Note'>
It is recommended to use the [advanced guide](/docs/installation/raspberry-pi/) which allows for the installation to run as a `homeassistant` user. The steps below may be shorter but some users find difficulty when applying updates and may run into issues.
</p>
### {% linkable_title Install %}
1. Create a virtual environment in your current directory:
```
$ python3 -m venv homeassistant
```
2. Open the virtual environment:
```
$ cd homeassistant
```
3. Activate the virtual environment:
```
$ source bin/activate
```
4. Install wheel:
```
$ python3 -m pip install wheel
```
5. Install Home Assistant:
```
$ python3 -m pip install homeassistant
```
6. Configure it to [autostart](/docs/autostart/)
7. Or run Home Assistant manually:
```
$ hass --open-ui
```
### {% linkable_title Upgrade %}
1. Stop Home Assistant
2. Open the directory where the virtual environment is located:
```
$ cd homeassistant
```
3. Activate the virtual environment:
```
$ source bin/activate
```
4. Upgrade Home Assistant:
```
$ python3 -m pip install --upgrade homeassistant
```
5. Start Home Assistant
### {% linkable_title Notes %}
- In the future, if you want to start Home Assistant manually again, follow step 2, 3 and 5.
- It's recommended to run Home Assistant as a dedicated user.
<p class='info'>
Looking for more advanced guides? Check our [Rasbian guide](/docs/installation/raspberry-pi/) or the [other installation guides](/docs/installation/).
</p>
### {% linkable_title After upgrading Python %}
If you've upgraded Python (for example, you were running 3.5.2 and now you've installed 3.5.4) then you'll need to build a new virtual environment. Simply rename your existing virtual environment directory:
```bash
$ mv homeassistant homeassistant.old
```
Then follow the [Install](/docs/installation/virtualenv/#install) steps again, being sure to use the newly installed version of Python.