Fix some LGTM alerts in the examples code #1262
Merged
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Overview of changes:
(LGTM info for pygame: https://lgtm.com/projects/g/pygame/pygame)
aliens_app_example/aliens.py
to use floor division (for python 3 compatibility)Note: Did not fully test
examples/overlay.py
functionality due to issue #1199.System details:
Resolves some of the examples code issues from the LGTM link in #1133.