How to use a decimal range() step value?

Question

Is there a way to step between 0 and 1 by 0.1?

I thought I could do it like the following, but it failed:

for i in range(0, 1, 0.1):
    print i
         


        

Answer 1

The trick to avoid round-off problem is to use a separate number to move through the range, that starts and half the step ahead of start.

# floating point range
def frange(a, b, stp=1.0):
  i = a+stp/2.0
  while i

Alternatively, numpy.arange can be used.