reduce() function returns an aggregated value that results from the application of a function to an iterable. The function is applied to the first pair of items in the iterable and the resulting value is then used with the next item in the sequence, this process repeats through item n.
reduce(func_name, iterable, initializer)
func_name is the function to be applied to the iterable and can be a lambda function or the name of any defined function. The
iterable contains the items, such as a list, the function will act on. The
initializer is an optional parameter that provides the ability to substitute an initial value for the first calculation. With the
initializer set, the first calculation will be between the
initializer value and the first item in the sequence in lieu of the first and second items of the sequence.
The following example uses
reduce() to sum all the values in the
nums list and add this value to an initial sum
from functools import reducestart = 30nums = [x for x in range(10)]print(reduce(lambda x, y: x + y, nums, start))# Output: 75
reduce() can be used to return the minimum value within a list: