Finding values on sequences and .index()

[rhamorim at my-deja.com]

Hi.

I have a list that may have many ocurrences of the same data. How do I
find the indexes for all ocurrences of it? list.index(value) only works
for the first ocurrence.

I thought of this ugly hack below, but I guess there's an easier way.

a = [1, 2, 3, 4, 1, 5, 6, 7, 1, 8, 9, 1]
b = map(None, a, range(len(a)))

N = 1 #value to be searched

c = filter(lambda x, n=N: x[0]==N, b)
d = map(lambda x: x[1], c) #this is the returned index list

Thanks in advance...

Roberto Amorim


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