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Date: Tue, 31 May 2011 00:00:04 -0700
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Subject: Re: Something is rotten in Denmark...
From: Chris Rebert <clp2@rebertia.com>
To: harrismh777 <harrismh777@charter.net>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:6713

On Mon, May 30, 2011 at 11:48 PM, harrismh777 <harrismh777@charter.net> wro=
te:
>>>> fs=3D[]
>>>> fs =3D [(lambda n: i + n) for i in range(10)]
>>>> [fs[i](1) for i in range(10)]
>
> [10, 10, 10, 10, 10, 10, 10, 10, 10, 10] =C2=A0 =C2=A0 =C2=A0 =C2=A0 <=3D=
=3D=3D not good
>
> =C2=A0 =C2=A0( that was a big surprise! . . . )
<snip>
> =C2=A0 =C2=A0 lambda? =C2=A0closure? =C2=A0scope? =C2=A0 bug?
>
> =C2=A0 =C2=A0 What is going on with the binding in the first construct...=
 this seems
> to reduce the usefulness of lambda to a considerable extent?

http://stackoverflow.com/questions/233673/lexical-closures-in-python
(See 1st and 2nd answers)

Cheers,
Chris