On Aug 12, 9:09 pm, "Jon Bowlas" <[EMAIL PROTECTED]> wrote:
> Hi All,
>
> I have the following list containing dictionaries and I would like to
> be able to count the total number of dictionaries I have that contain
> a certain value set for the 'level' key:
>
>
[snip]
>
> For example I'd like to kow how many dictionaries there are with a
> level 1, 2 , 23 & 3 etc. How would one go about achieveing this?
>
Assuming:
thelist = [etc etc etc]
q = set(['1']); print q, sum(d.get('level') in q for d in thelist)
q = set(['23']); print q, sum(d.get('level') in q for d in thelist)
q = set(['2', '23']); print q, sum(d.get('level') in q for d in
thelist)
produces:
set(['1']) 1
set(['23']) 3
set(['2', '23']) 7
Is that what you wanted? If you are sure that each dict will have a
'level' key, you can use d['level'] instead of d.get('level').
Cheers,
John
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