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 :
list = [1, 2, 3] product = [magic_here for i in list] #product is expected to be 6
Code that is doing the same :
def product_of(input): result = 1 for i in input: result *= i return result
No; a list comprehension produces a list that is just as long as its input. You will need one of Python's other functional tools (specifically reduce() in this case) to fold the sequence into a single value.
reduce()
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