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Performance optimization


When attempting to improve the performance of a Python script, first and foremost you should be able to find the bottleneck of your script and note that no optimization can compensate for a poor choice in data structures or a flaw in your algorithm design. Identifying performance bottlenecks can be done by profiling your script. Secondly do not try to optimize too early in your coding process at the expense of readability/design/quality. Donald Knuth made the following statement on optimization:

“We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%.”

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