How to emulate sum() using a list comprehension?

Question

Is it possible to emulate something like sum() using list comprehension ?

For example - I need to calculate the product of all elements in a list :

l         


        

Answer 1

It is possible to achieve by using lambda with list comprehension Since we can't assign a value in list comprehension we go with lambda

Solution:

>>> (lambda number_list, sum=0:[sum for number in number_list for sum in [sum + number]][-1])([1, 2, 3, 4, 5])
>>> 15