Comment 1 for bug 1820843

@Evan - could you please edit and remove all commands in the above snapfile.yaml except the first one. They were just commands I was playing around with and some don't compile, so are unnecessary to the problem at hand.

Also your interesting comment:

  "I would think this user error if not for the fact that pip comes from the plugin itself, so on first inspection it looks like snapcraft is cleaning the pip installation but not reinstalling it prior to running again."

seems to be lost/hard to see between the listings of the shell output and the snapcraft.yaml - perhaps add some spacing?

To all: this issue might also be related to https://forum.snapcraft.io/t/error-you-must-give-at-least-one-requirement-to-install-when-rebuilding-parts-with-python-plugin/9011
 there certainly have been multiple complaints about this pip bug on the internet.