pip freeze without Conda packages

Question

I have been using Conda for a while and it has been very helpful. However, it has happened to me lately, that when I run the command

pip freeze > requirements.txt

to pass my project to another laptop, the requirements.txt file is full of Conda packages, such that when I try to restore them with the command

pip install -r requirements.txt

it cannot find them and fails.

My question is, is it possible to do a pip freeze where the pip command does not consider Conda packages ?

At the end of the day, I only use Conda to create separate Python workspaces.

Answer 1

The conda list command will indicate PyPI packages with a pypi in the Channel column. Hence, a quick way would be to filter on that, eg,

conda list | awk '$4 ~ /pypi/ { print $1 "==" $2 }'

It should be mentioned that a more idiomatic workflow for sharing environments is to use conda env export , which also captures (and separates) packages from PyPI. See the Conda documentation on sharing environments for details.

Answer 2

If you are pretty sure that Anaconda is not essential for this project, you can manually remove it's packages from requirements.txt.

Answer 3

Conda packages are often defined with an @.

Here is a code to remove them:

Linux:

pip freeze | grep -v "@" > requirements.txt

Windows

pip freeze | findstr /v "@" > requirements.txt