I have a python 2.7 conda environment and would like to create an equivalent environment with python 3.4. I am aware of the --clone
option when creating environments, but it won't accept additional arguments, like python=3.4
. Is there a way to do this automatically? I thought about trying to use the output from conda list --export
, but that also encodes the python release.
One way would be to
conda list --export > exported-packages.txt
And then edit that file to remove the last part of each package with the py27_0
parts (you might also want to remove the versions, in case some version of a package doesn't have a Python 3 version). Then
conda create -n py3clone --file exported-packages.txt
Another idea would be to clone the environment:
conda create -n clonedenv --clone oldenv conda install -n clonedenv python=3.4 conda update -n clonedenv --all
Note that obviously both of these will fail if you have some package that doesn't have a Python 3 version.
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