@[email protected] to [email protected]English • 15 days agoPython Performance: Why 'if not list' is 2x Faster Than Using len()blog.codingconfessions.comexternal-linkmessage-square87fedilinkarrow-up1123arrow-down112cross-posted to: [email protected]
arrow-up1111arrow-down1external-linkPython Performance: Why 'if not list' is 2x Faster Than Using len()blog.codingconfessions.com@[email protected] to [email protected]English • 15 days agomessage-square87fedilinkcross-posted to: [email protected]
minus-square@[email protected]linkfedilinkEnglish7•14 days agoCould also compare against: if not len(mylist) That way this version isn’t evaluating two functions. The bool evaluation of an integer is false when zero, otherwise true.
minus-square@[email protected]linkfedilinkEnglish2•14 days agoThis is honestly the worst version regarding readability. Don’t rely on implicit coercion, people.
minus-square@[email protected]linkfedilinkEnglish1•14 days agoBut the first example does the same thing for an empty list. I guess the lesson is that if you’re measuring the speed of arbitrary stylistic syntax choices, maybe Python isn’t the best language for you.
Could also compare against:
That way this version isn’t evaluating two functions. The bool evaluation of an integer is false when zero, otherwise true.
This is honestly the worst version regarding readability. Don’t rely on implicit coercion, people.
But the first example does the same thing for an empty list. I guess the lesson is that if you’re measuring the speed of arbitrary stylistic syntax choices, maybe Python isn’t the best language for you.