Anaconda: Permanently include external packages (like in PYTHONPATH)

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I found two answers to my question in the Anaconda forum:

1.) Put the modules into into site-packages, i.e. the directory $HOME/path/to/anaconda/lib/pythonX.X/site-packages which is always on sys.path. This should also work by creating a symbolic link.

2.) Add a .pth file to the directory $HOME/path/to/anaconda/lib/pythonX.X/site-packages. This can be named anything (it just must end with .pth). A .pth file is just a newline-separated listing of the full path-names of directories that will be added to your path on Python startup.

Alternatively, if you only want to link to a particular conda environment then add the .pth file to ~/anaconda3/envs/{NAME_OF_ENVIRONMENT}/lib/pythonX.X/site-packages/

Both work straightforward and I went for the second option as it is more flexible.

*** UPDATE:

3.) Use conda develop i. e. conda-develop /path/to/module/ to add the module which creates a .pth file as described under option 2.).

4.) Create a setup.py in the folder of your package and install it using pip install -e /path/to/package which is the cleanest option from my point of view because you can also see all installations using pip list. Note that the option -e allows to edit the package code. See here for more information.

Thanks anyway!

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