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Python Performance: Why 'if not list' is 2x Faster Than Using len()
(blog.codingconfessions.com)
This is a most excellent place for technology news and articles.
Oops, copied from another thread apparently. Apparently my copy didn't... copy. Here's what it should be:
I'll fix my original comment so it's less confusing, but not in a way that makes you look like an idiot. :)