Python 3 Map function is not Calling up function

Question

Why doesn\'t following code print anything:

#!/usr/bin/python3
class test:
    def do_someting(self,value):
        print(value)
        return value

    de         


        

Answer 1

I just want to add the following:

With multiple iterables, the iterator stops when the shortest iterable is exhausted [ https://docs.python.org/3.4/library/functions.html#map ]

Python 2.7.6 (default, Mar 22 2014, 22:59:56)

>>> list(map(lambda a, b: [a, b], [1, 2, 3], ['a', 'b']))
[[1, 'a'], [2, 'b'], [3, None]]

Python 3.4.0 (default, Apr 11 2014, 13:05:11)

>>> list(map(lambda a, b: [a, b], [1, 2, 3], ['a', 'b']))
[[1, 'a'], [2, 'b']]

That difference makes the answer about simple wrapping with list(...) not completely correct

The same could be achieved with:

>>> import itertools
>>> [[a, b] for a, b in itertools.zip_longest([1, 2, 3], ['a', 'b'])]
[[1, 'a'], [2, 'b'], [3, None]]