map python 3

1#generate a list from map iterable with lambda expression
2list( map(lambda x: x*2, numeros) )

1def calculateSquare(n):
2    return n*n
3
4
5numbers = (1, 2, 3, 4)
6result = map(calculateSquare, numbers)
7print(result)
8
9# converting map object to set
10numbersSquare = list(result)
11print(numbersSquare)

1map(function, iterable, ...)

1#Syntax
2map(functions, iterables)

1map(function_to_apply, list_of_inputs)
2

1from multiprocessing import Pool
2
3def test( v ):
4    print(v)
5    return v
6
7if __name__ == '__main__':
8    with Pool(2) as p:
9        print(p.map(test, range(5)))