On 15/09/10 15:31, Hs Hs wrote:
Dear Steven,
Thanks for your help.
however I have a question,
using:
for key, value in xdic.items():
if 1 in value and 2 in value or 3 in value:
print key
also print keys that have values such as [1,2,3].
In cases where there is [1,2,3] and [1,2] also reported.
How can I extract those keys that have values only [1,2] and [1,3]
exclusively.
>>> xdic = {75796988: [1, 2, 3], 75797478: [1, 2, 3], 75797887:[1,2],
75797987:[3,1]}
>>> for key, value in xdic.items():
... if 1 in value and 2 in value or 3 in value:
... print key
...
75797987
75796988
75797478
75797887
Here all 4 keys appear. Instead I want to get only 75797887:[1,2] and
75797987:[3,1]
how can I force this.
If you just have a few specific cases you can use "in" to check whether
the values you are interested in appear in a specified collection, ie:
>>> xdic = {75796988: [1, 2, 3], 75797478: [1, 2, 3], 75797887:[1,2],
75797987:[3,1]}
>>> for key, value in xdic.items():
... if value in ([1,2], [2,1], [1,3], [3,1]):
... print key
...
75797987
75797887
HTH
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