Demonstrate effect of conda activate

[lexnederbragt]

In 02-working-with-environments, around the first time conda activate is run, it would be beneficial to demonstrate the effect of the command by something like:

• run $ python (to get into the interactive Python editor)
  *attempt to import a package so a ModuleNotFoundError appears
• then run conda activate basic-scipy-env
• now redo the import showing that the package now is there

This requires the package not to be installed in the base installation. Alternatively, different versions of Python can be used (the Python editor first shows which version is used).

[davidrpugh]

This is a great suggestion! I typically do this when I teach but for some reason never included it in the lesson materials.