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Newsgroups: comp.lang.python
Date: Tue, 9 Jul 2013 08:07:47 -0700 (PDT)
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Subject: Re: Reading File Into 2D List
From: alex.hanga@gmail.com
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Xref: csiph.com comp.lang.python:50255

 > Replace te **start line with something like:
>=20
>=20
>=20
>             object_data.append([])
>=20
>             i +=3D 1
>=20
>=20
>=20
> This assumes a few missing lines, which must have been there or you=20
>=20
> would have already had runtime errors.  For example, you'll need i=3D0=20
>=20
> before the loop.
>=20
>=20
>=20
> Another comment about the append with all those calls to float().  When=
=20
>=20
> you see a line like that, you want to seriously consider making it a=20
>=20
> loop, or a comprehension, or something.
>=20
>=20
>=20
> Given that elem is a list of strings, you could convert it to a list of=
=20
>=20
> float, then convert that to a tuple (if you really wanted that).  At=20
>=20
> that point, you just append it.  All this could be done in one line if=20
>=20
> you like, something like (untested):
>=20
>=20
>=20
>       object_data[i].append(tuple(map(float, row.split(","))))
>=20
>=20
>=20
>=20
>=20
>=20
>=20
> --=20
>=20
> DaveA

Yes, indeed there are a few lines missing. Just the read file and the i=3D0=
 pretty much. The help you gave me solved my problem, thank you very much!

I know the calls to float() are sub par and quite stupidly made but I'm not=
 that good at python scripting (yet) so I try to keep my functions rather e=
asy to read so I understand what is happening. A bit later I will take the =
time to make my code more sophisticated, but as of now I just want it to wo=
rk, hehe.

Again, thank you so much!