referencing an object attribute sort of indirectly from within list

python newbie mesteve_b at hotmail.com
Sun Nov 30 13:34:59 CET 2003


Sorry about that, I retyped it because I was actually using dom to import an
xml file, and the nodes were used to  populate the object attributes, not
the literal strings I was using. I didn't want to put the xml code in this
post.  I also set my email to text only, so no more html.
"Bengt Richter" <bokr at oz.net> wrote in message
news:bqbnp2$i27$0 at 216.39.172.122...
> On Sun, 30 Nov 2003 01:32:05 GMT, "python newbie" <mesteve_b at hotmail.com>
wrote:
>
> >This is a multi-part message in MIME format.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-- So far, so annoying
> [...]
> >
> >Is there anything that would get in the way of me being able to =
> >reference an object attribute, from within a list.
> >
> >I have:
> Where do you have it? This is not an actual verbatim example of something
you tried.
>
> > #      one class here
> >
> >  class BackupSet:
>              ^--- this is different from your constructor call below at
[1]
> >      fileGroupList =3D []
> >   =20
> >#      another class here
> >
> > class FileGroup:
> >     sourceDir =3D ''
> >     destinDir  =3D ''
> >     def __init__(self):
> >           self.sourceDir =3D 'c:\folder'
> >           self.destinDir =3D 'd:\folder' =20
> >
> >
> >fileGroup =3D FileGroup()
> >
> >backupSet =3D BackUpSet()
>                    ^----- [1] So I know you didn't do this.
> >
> >backupSet.fileGroupList.append(fileGroup)
> >
> ># when i try to reference an attribute here, I just get 'none'
> Maybe you have some old code that reads
>             self.sourceDir = 'none'
> in class FileGroup. Who can tell?
>
> >
> >print bkset.fileGroupList[0].sourceDir                 or
>        ^^^^^-- what the heck is that?
>
> >print "%s" % bkset.fileGroupList[0].sourceDir
> >   =20
> >
> >thanks
> >Steve
> >------=_NextPart_000_0025_01C3B69E.E2B92BA0
> >Content-Type: text/html;
> <grr>
> Two things:
> 1. Don't post HTML
> 2. Do post verbatim copy/pasted examples from the window where you
>    actually tried what you are talking about. It's not that much more
typing.
> </grr>
> I'm hungry. I don't know why I'm putting off food even a minute to do this
;-/
>
> Regards,
> Bengt Richter






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