list interval index

[dw]

What is the fastest python code to get the index of a huge
list of incrementing interval numbers, given a number?

ie:

ic = [0,10,30,60,90,100,800,1000]
print pyfuncsomething(ic,50) 2
print pyfuncsomething(ic,500)

5

the slower code is like this:

def pyfuncsomething(ic,n):
for i,el in enumerate(ic):
if n > el:
return i
raise Exception, 'Not found'
thx

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