Mark wrote:
Hi all,
I have a scenario where I have a list like this:
User Score
1 0
1 1
1 5
2 3
2 1
3 2
4 3
4 3
4 2
And I need to add up the score for each user to get something like
this:
User Score
1 6
2 4
3 2
4 8
Is this possible? If so, how can I do it? I've tried looping through
the arrays and not had much luck so far.
Any help much appreciated,
Mark
does this work for you?
users = [1,1,1,2,2,3,4,4,4]
score = [0,1,5,3,1,2,3,3,2]
d = dict()
for u,s in zip(users,score):
if d.has_key(u):
d[u] += s
else:
d[u] = s
for key in d.keys():
print 'user: %d\nscore: %d\n' % (key,d[key])
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