Python virtual environment

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This example shows how to create a Python virtual environment.

Load modules

Switch to the new software stack

$ env2lmod

or, set your default software stack to the new software stack

$ set_software_stack.sh new

Load a Python module

$ module load gcc/6.3.0 python/3.8.5

Create a Python virtual environment

The option --system-site-packages includes Python packages from host Python also in the virtual environment.

$ python -m venv --system-site-packages myenv

Activate the virtual environment

$ source myenv/bin/activate

Check the python packages included in this environment

(myenv)$ pip list

You can install new packages inside this environment

(myenv)$ pip install --upgrade pip

Deactivate the Python virtual environment

(myenv)$ deactivate

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