{"id":1340,"date":"2018-10-28T13:56:11","date_gmt":"2018-10-28T05:56:11","guid":{"rendered":"https:\/\/www.techcoil.com\/blog\/?p=1340"},"modified":"2018-10-28T13:56:47","modified_gmt":"2018-10-28T05:56:47","slug":"how-to-install-python3-venv-on-ubuntu-16-04","status":"publish","type":"post","link":"https:\/\/www.techcoil.com\/blog\/how-to-install-python3-venv-on-ubuntu-16-04\/","title":{"rendered":"How to install python3-venv on Ubuntu 16.04"},"content":{"rendered":"

Since Ubuntu 16.04<\/a> is a very popular operating system, it is one operating system that you will likely come across when you are building software with Python 3. For example, if you want to get a Nvidia Jetson TX2 developer kit<\/a> today, you will find yourself dabbling with Ubuntu 16.04.<\/p>\n

On the other hand, the venv module of Python 3<\/a> is one recommended way to create virtual environments for our Python 3 projects<\/a>.<\/p>\n

In case you need it, this post describes how to install python3-venv<\/code> on Ubuntu 16.04.<\/p>\n

Add universe repository and update Ubuntu 16.04<\/h2>\n

Open up a terminal window. After your terminal window had started, add Universe repository<\/a> and upgrade your Ubuntu with the following commands:<\/p>\n

\r\nsudo apt-get install software-properties-common -y\r\nsudo apt-add-repository universe\r\nsudo apt-get update\r\n<\/pre>\n
After the commands complete, you should be able to install python3-venv<\/code>.<\/p>\n
Installing python3-venv on Ubuntu 16.04<\/h2>\n
Next, run the following command to install python3-venv on Ubuntu 16.04:<\/p>\n
\r\nsudo apt-get install python3-venv -y\r\n<\/pre>\n
Creating a virtual environment for your Python 3 application with python3-venv<\/h2>\n
Once python3-venv<\/code> had been installed successfully, you should be able to create a virtual environment for your Python 3 application.<\/p>\n
In order to test that out, run the following command to create a virtual environment for your Python 3 application inside ~\/my_py3_venv<\/code>:<\/p>\n
\r\npython3 -m venv ~\/my_py3_venv\r\n<\/pre>\n
After the command complete, you should be able to find the virtual environment inside the ~\/my_py3_venv<\/code> directory.<\/p>\n
Getting into your Python 3 virtual environment with your terminal window<\/h2>\n
In order to get into your Python 3 virtual environment with your terminal window, you need to run the activate<\/code> script. Given that, run the following command to get into your Python 3 virtual environment:<\/p>\n
\r\nsource ~\/my_py3_venv\/bin\/activate\r\n<\/pre>\n
After the command complete, you will find that your terminal prompt is appended with (my_py3_venv)<\/strong>. While inside this virtual environment, you can install any Python dependencies with the pip<\/code> command. For example, if you wish to install Flask<\/a>, you can run the following command:<\/p>\n
\r\npip install flask\r\n<\/pre>\n
When you had installed the necessary dependencies for your Python 3 application, you can then run your application with the python<\/code> binary:<\/p>\n
\r\npython run_your_app.py\r\n<\/pre>\n
Getting out of your Python 3 virtual environment<\/h2>\n
In order to get out of your Python 3 virtual environment, you need to run the following command:<\/p>\n
\r\ndeactivate\r\n<\/pre>\n
After the command completes, you will find that your terminal prompt is not appended with (my_py3_venv)<\/strong>. At this point in time, whatever dependencies that you had added while inside the virtual environment will not be available.<\/p>\n\n