python - Install a package into multiple/all conda environments?

Question

I'm using conda to run tests against different versions of python, numpy, etc., but there are some common dependencies for all combinations of python/numpy. Is there a way to install such packages into all conda environments, or do I have to specify each by hand?

Answer 1

You can run a shell loop over the output of conda env list. For example:

for env in $(conda env list | cut -d" " -f1 | tail -n+4); do conda install -n $env XXXXXX; done