import numba
import numpy
@numba.jit
def sum(x):
   total = 0
   for i in range(x.shape[0]):
      total +=x[i]
   return total
x = numpy.arange(10_000_000);
%time sum(x)
CPU times: user 145 ms, sys: 4.02 ms, total: 149 ms
Wall time: 149 ms