How to generate a environments.yml file of a Python virtual environment?

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I want to generate a environments.yml file of an existing Python environment. I tried the following command:

python env export --from-history -f environment.yml

This throws the following error:

can't open file 'env': [Errno 2] No such file or directory

Note: This is not a conda environment.

python-venv python
2 Answers

Are you looking for:

conda env export > environment.yml
user_76942630

pip freeze > requirements.txt to save the venv

pip install -r requirements.txt to create venv.

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