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Date: Sat, 2 Apr 2011 19:58:09 -0400
Subject: better way to do this in python
From: Mag Gam <magawake@gmail.com>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:2476

I have a file like this,


cat file
aaa
bbb
aaa
aaa
aaa

awk '{x[$1]++}END { for (i in x) {print i,x[i]} } ' test
bbb 1
aaa 4


I suppose I can do something like this.
(pseudocode)

d={}
try:
 d[key]+=1
except KeyError:
 d[key]=1


I was wondering if there is a pythonic way of doing this? I plan on
doing this many times for various files. Would the python collections
class be sufficient?