[issue37101] Filterer.filter can be rewritten using built-ins just as efficient much more readable

[Dale Visser]

Dale Visser <dale.vis...@live.com> added the comment:

I've learned a lot about the performance trade-offs of generator expressions. 
The only way of shortening this code (readability is subjective) that I've 
found not to negatively impact performance is this:

    def filter(self, record):
        rv = True
        for f in self.filters:
            if not getattr(f, 'filter', f)(record):
                rv = False
                break
        return rv

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<https://bugs.python.org/issue37101>
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