Fix Pylint errors W0150, W0511, W0601, W0603, W0610 #430
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Global vars are added to ignore, we'd need to restructure the whole WiFi implementations for that. We might do that in the future, but for now let it be since it's still contained in the modules themselves.
Also this patch is pulling out the
return
s fromfinally
because it can stop the exceptions from showing.