Problem with Creating Python 3.6 Virtual Environment on Ubuntu 20.04

Question

Ubuntu 20.04 has Python 3.6 and Python 3.8 support. Command python3 -m venv my_venv creates virtual environment with python 3.8 and it works as expected.

However, trying python3.6 -m venv my_venv3.6 does not work. The response I get is /usr/bin/python3.6: No module named venv.

I tried using virtualenv --python=/usr/bin/python3.6 my_venv3.6, which results in:

RuntimeError: failed to query /usr/bin/python3.6 with code 1 err: ...

I also tried installing sudo apt install python3.6-venv which results in:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package python3.6-venv is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'python3.6-venv' has no installation candidate

Note that running python3.6 starts interactive python prompt with Python 3.6.9. I can also run scripts this way, so it seems that Python 3.6 is indeed usable on my system.

How can I start Python 3.6 virtual environment on Ubuntu 20.04?

Accepted Answer

Ubuntu 20.04 ships with default Python 3.8. So first you will need to install Python 3.6.

Install python 3.6:

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.6

If the virtualenv package is not installed, run:

apt-get update
apt-get install python3-virtualenv

Create a virtual environment:
```
virtualenv -p /usr/bin/python3.6 venv
```

Answer 2

You can also do:

curl  | bash
pyenv install 3.6.13
pyenv global 3.6.13
pyenv local 3.6.13
pip install virtualenv
virtualenv venv_ok

Problem with Creating Python 3.6 Virtual Environment on Ubuntu 20.04

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Problem with Creating Python 3.6 Virtual Environment on Ubuntu 20.04

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