Sorting HOW TO — Python 3.11.16 documentation

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operator: Functions corresponding to the standard operators.

The key-function patterns shown above are very common, so Python provides convenience functions to make accessor functions easier and faster. The operator module has itemgetter(), attrgetter(), and a methodcaller() funct

Ascending and Descending¶

Both list.sort() and sorted() accept a reverse parameter with a boolean value. This is used to flag descending sorts. For example, to get the student data in reverse age order:

Ascending and Descending¶

Both list.sort() and sorted() accept a reverse parameter with a boolean value. This is used to flag descending sorts. For example, to get the student data in reverse age order:

Comparison Functions¶

Unlike key functions that return an absolute value for sorting, a comparison function computes the relative ordering for two inputs.

functools.cmp_to_key

Unlike key functions that return an absolute value for sorting, a comparison function computes the relative ordering for two inputs.