Jon Ribbens jon+usenet at unequivocal.co.uk
Fri Jul 7 14:31:53 EDT 2006

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In article <1152289113.007295.23320 at s13g2000cwa.googlegroups.com>, Thomas Nelson wrote:
> This is exactly what I want to do: every time I encounter this kind of
> value in my code, increment the appropriate type by one.  Then I'd like
> to go back and find out how many of each type there were.  This way
> I've written seems simple enough and effective, but it's very ugly and
> I don't think it's the intended use of lists.  Does anyone know a
> cleaner way to have the same funtionality?

How about this:

map = {}
def increment(value):
  map[value] = map.get(value, 0) + 1

?

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