When you are inside SWAN, you are using software provide by LCG stacks that already have
the python interpreter and all the required environment variables in the system run properly the software from CVMFS.
When you put conda over this enviromnet you are mixing two different python setups with different versions producing a collition.
I found this recipe privide from one of our users
may this can help to isolate the conda enviroment.
But other alternative is to install the package that you need in your home without any conda enviroment,
using pip from the LCG stack.
We are planning to allow projects have conda environments attached, but the feature is still under development.
