Python Virtual Environments
It’s common to have multiple Python applications running on your system.
When applications require the same module, at some point you will reach a tricky situation where an app needs a version of a module, and another app a different version of that same module.
To solve this, you use virtual environments.
We’ll use venv
. Other tools work similarly, like pipenv
.
Create a virtual environment using
python -m venv .venv
in the folder where you want to start the project, or where you already have an existing project.
Then run
source .venv/bin/activate
Use
source .venv/bin/activate.fish
on the Fish shell
Executing the program will activate the Python virtual environment. Depending on your configuration you might also see your terminal prompt change.
Mine changed from
➜ folder
to
(.venv) ➜ folder
Now running pip
will use this virtual environment instead of the global environment.
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