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From: "Joseph L. Casale" <jcasale@activenetwerx.com>
To: =?windows-1256?Q?Python_=FD=5Bpython-list=40python=2Eorg=5D=FD?= <python-list@python.org>
Subject: RE: Dict comprehension help
Thread-Topic: Dict comprehension help
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Date: Thu, 6 Dec 2012 15:32:19 +0000
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Xref: csiph.com comp.lang.python:34399

>You could put the loop into a helper function, but if you are looping=0A=
>through the same my_list more than once why not build a lookup table=0A=
>=0A=
>my_dict =3D {d["key"]: d for d in my_list}=0A=
>=0A=
>and then find the required dict with=0A=
>=0A=
>my_dict[value]=0A=
=0A=
I suppose, what I failed to clarify was that for each list of dicts, I may=
=0A=
only extract out one (maybe two) dicts, but I have several to do this for.=
=0A=
=0A=
The tidy one-liners make for populating the vars in __init__ nice and clean=
.=0A=
=0A=
Much appreciated guys, thanks!=0A=
jlc=