Multiple statements in list compherensions in Python?

Question

Is it possible to have something like:

list1 = ...

currentValue = 0
list2 = [currentValue += i, i for i in list1]

I tried that but didn\'t wor

Answer 1

You can't do multiple statements, but you can do a function call. To do what you seem to want above, you could do:

list1 = ...
list2 = [ (sum(list1[:i], i) for i in list1 ]

in general, since list comprehensions are part of the 'functional' part of python, you're restricted to... functions. Other folks have suggested that you could write your own functions if necessary, and that's also a valid suggestion.