How to change Python version of existing conda virtual environment?

python version conda virtual-environment

Activate the relevant environment, then install your target python version.

conda activate my_envconda install python=3.6

python version conda virtual-environment

Rebuild a new environment, for example called "myenvi"

conda create --name myenvi python=3.6

And make sure the version by

python --version

After installing all packages, double-check with

conda list -n myenvi

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