设置环境以在 Jupyter Notebook 中使用 PyOpenColorIO

Question

In my notebook I would like to use PyOpenColorIO. I have installed that library via brew install opencolorio and I have confirmed that I can use it from within my pipenv -created virtual environment (both from the REPL as well as from a script) after source -ing the environment configuration that ships with the library.

However, I am unable to set up this environment from within my notebook and thus cannot use the library from there - import PyOpenColorIO as OCIO always throws No module named 'PyOpenColorIO' .

Things I've tried so far and their results:

• set each variable export ed from the shell file with %env or %setenv before importing OCIO, both using quotes and without quotes
  • variables are set when checking with %env , but ${PATH} and Co are not substituted
• set each variable with os.environ["VARNAME"] before importing OCIO
  • same as above
• run !source /usr/local/share/ocio/setup_ocio.sh at the beginning of the notebook
  • no change in %env at all

It seems to me that there should be a way of setting up the environment as part of the kernel startup, before any cells are executed. However I haven't been able to find such an option. Does it exist? Or is there any other way to get OCIO to work in a notebook using a virtual environment?

Answer 1

After digging around some more, I found a solution that works: pipenv can automatically load .env files .

This sets the variables before they are needed to load the module.