Bug in some tutorials in GluCat 0.7.2 pyclical/demos is fixed in Git

Some of the PyClical tutorials in pyclical/demos are missing the line:

print_exec("from PyClical import *")

This is fixed in Git, and will be fixed in GluCat 0.7.3 to be released shortly.

For details, see
https://sourceforge.net/p/glucat/git/ci/f6be525bda3f7342c561a1e85c8dbb2d0ba09433/