a way to substitute a lambda in a map

lambda_or_repeat.py

#!/usr/bin/python3
import itertools


def gen_string(num, foo):
    return '{} - {}'.format(num, foo)


def list_number_and_foo_sp():  #sp == situation problem
    foo = 'Something'
    return list(map(gen_string, range(10),foo))


def list_number_and_foo_with_lambda():

    foo = 'Something'
    return list(map(lambda n: gen_string(n, foo), range(10)))


def list_number_and_foo_with_repeat():

    foo = 'Something'
    return list(map(gen_string, range(10), itertools.repeat(foo)))

or a good reason to use a genexp:

def list_number_and_foo_with_genexp():
    foo = 'Something'
    return list(gen_string(n, foo) for n in range(10))