Usage of reduce Python

1. View the usage of reduce

in the Python command viewImportfunctools Help (Functools) to help (functools.reduce) or fromFunctoolsImportreduce Help on built-inchfunction reduceinchmodule _functools:reduce (...) Reduce (function, sequence[, initial])-value Apply A function of arguments cumulatively to the items of a sequence, fromLeft -to-right, as-to-reduce the sequence to a single value. For example, reduce (Lambdax, Y:x+y, [1, 2, 3, 4, 5]) Calculates ( ((1+2) +3) +4) +5). If Initial isPresent, it isplaced before the items of the sequenceinchThe calculation, andserves as a default when the sequence isempty.>>> Reduce (Lambdax, Y:x+y, [1, 2, 3, 4, 5])15>>> Reduce (Lambdax, Y:x*y, [1, 2, 3, 4, 5])120>>>

Usage of reduce Python