Author: Robert Ladyman
Revision Date: 2023-09-21 12:50:49 UTC

Removed spurious semi-colons at end of lines
Newlines for multiple statements one line.
Removed spurious debugging statements and local developer elements
Corrected some flake8 issues (e.g. use of reserved names - mostly due to age of code)
Removed extra imports
Elminiated lazyimport.
Corrected some None comparators
Some changes due to Qt5 differences