Comparing value in two dictionaries?
Scott David Daniels
Scott.Daniels at Acm.Org
Sat Nov 15 11:56:16 EST 2008
Arnaud Delobelle wrote:
> Gilles Ganault <nospam at nospam.com> writes:
>
>> Hello
>>
>> I fill two dictionaries with the same number of keys, and then need to
>> compare the value for each key, ...
if you know set(dic1) == set(dic2) -- that is that the same keys are
used, you could use:
Setup:
>>> dic1 = dict((c, ord(c)) for c in 'abcdefgh')
>>> dic2 = dic1.copy()
>>> dic2['e'] = 12
>>> dic2['h'] = 13
Comparisons:
>>> differs = dict((p1[0], (p1[1], p2[1]))
for p1, p2 in zip(sorted(dic1.items()),
sorted(dic2.items()))
if p1 != p2)
>>> differs
{'h': (104, 13), 'e': (101, 12)}
--Scott David Daniels
Scott.Daniels at Acm.Org
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