I successfully installed a virtual environment in Ubuntu 22.10 (VirtualBox) by following this excellent tutorial: www.digitalocean.com/community/tutorials/how-to-install-python-3-and-set-up-a-programming-environment-on-ubuntu-22-04. Thank you, Alex. I have two follow up questions:
- A clarification, please. The tutorial directs us to cd into the directory created for our virtual environments (here “environments”) and to both create and activate the environment created from this “environments” directory. In other words, we should do our work from within the main “environments” directory, and not from the
my_envdirectory that is created by thepython3 -m venv my_envcommand. Is this correct? I am asking, because I am planning to create a second virtual environment, and to use a different/older version of Ptyhon. Somehow I feel I should be working from within the respective directory created by thevenvcommand, especially since I will have more than one environment. - I am running the Python version 3.10.7, which is the latest update available from the Ubuntu repo. But would need to install a version of Python 3.9 to use in my second virtual environment. Could someone please direct me to a tutorial on how to do that?
Thanks. I have always found the DigitalOcean tutorials comprehensive and well-written.
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Hi there,
You will be working form the directory that you’ve created with the
mkdircommand.For example let’s say that you have 2 projects:
project1thencdinto it and create the venv,python3 -m venv p1_envproject2thencdinto it and create the venv,python3 -m venv p2_envFor your second question, in order to install Python
3.9on Ubuntu, you can use thepyenvCLI to install specific Python versions:https://github.com/pyenv/pyenv#getting-pyenv
This will download and run the pyenv installer script. It will add the necessary configuration to your shell profile file (e.g. ~/.bashrc) to initialize pyenv on each new terminal session.
This should output the version of pyenv that you installed.
This will download and install Python 3.10.0. You can install other Python versions in the same way.
This will set the global Python version to 3.10.0. You can also set the Python version for a specific directory using the
pyenv localcommand.Let me know if you have any questions!
Best,
Bobby