Triage Flake8 E265

[jbytheway]

Summary

None

Purpose of change

To complete the triage of Flake8 errors & warnings.

E265 forces a space after the # on comments.

But lacking a space is used to indicate commented-out code, rather than genuine comments, and our code has commented-out print calls that seem potentially useful to keep.

Describe the solution

Decide not to enable Flake8 E265 because it prevents us keeping commented-out debug print messages.

Describe alternatives you've considered

Delete the debug print calls.

Testing

Ran flake8.

Additional context

This branch slipped through the cracks when I was working through all the flake8 triage a while back. Rediscovered it while sorting through my old branches.