Python Running Sum in List [duplicate]
Python 3 has itertools.accumulate for exactly this purpose:
>>> from itertools import accumulate>>> a=[1,2,3]>>> list(accumulate(a))[1, 3, 6]
If you'd like a numpy solution
from numpy import cumsumresult = list(cumsum(a))
How about an ordinary loop?
a = [1,2,3]result = []s = 0for item in a: s += item result.append(s)print(result)