giampiero mu wrote:
> hi everyone
Hi, you appear to be fairly new to Python, so you might want to take a
look at the tutorial at Python.org
Kents suggestion to use RE is good.
This should be faster than your example by quite a bit if you don't want
to use RE.
def controlla(test, size=4):
# Return substring if a second substring is found.
# Return None if no match found.
for i in range(len(test)-size):
match=test[i:i+size]
left=test[:i]
right=test[i+size:]
if match in left or match in right:
return match
print controlla('qqqabcdrrabcd')
--> 'abcd'
Here's a few notes on your example for future reference:
Multiple breaks don't work. The first break will jump out of the loop
before the other breaks are reached.
Any function that ends without a return will return None. So you don't
need to return 'no'.
Cheers,
Ron
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