Treading on Python Series: Illustrated Guide to Python 3 by Matt Harrison

Author:Matt Harrison
Language: eng
Format: epub, mobi
Tags: Python Programming Language
Publisher: Matt Harrison

Typically, you don't mix key types, because it is confusing to readers of the code and also makes sorting keys harder. Python 3 won't sort mixed type lists without a key function telling Python explicitly how to compare different types. This is one of those areas where Python gives you the ability to do something, but that doesn't mean you should. In the words of Python core developer Raymond Hettinger:

Many "Can I do x in Python" questions equate to "Can I stop a car on train tracks when no trains are coming?" Yes you can, No you shouldn't

—@raymondh

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