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Date: Tue, 24 May 2011 01:58:25 -0700
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Subject: Re: NEED HELP- read file contents, while loop to accept user input, and enter to exit
From: Chris Rebert <clp2@rebertia.com>
To: Cathy James <nambo4jb@gmail.com>
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On Tue, May 24, 2011 at 1:31 AM, Cathy James <nambo4jb@gmail.com> wrote:
> dear mentor,
>
> I need help with my code:
<snip>

In addition to what others have already said...

> please see my attempt below and help:
>
> #1) open file and display current file contents:
> f =3D open ('c:/testing.txt'', 'r')
> f.readlines()
> #2)=C2=A0 and 3) use while loop=C2=A0 to write user input to file, save t=
o file, close
> when press enter:
> while True:
> =C2=A0=C2=A0=C2=A0 s =3D input ('enter name: ').strip()
> =C2=A0=C2=A0=C2=A0 f =3D open ('c:/testing.txt', 'a')
> =C2=A0=C2=A0=C2=A0 if f.writable():

Since you *just* opened the file in append mode, this condition will
*always* be true (append mode implies writability), so your `else`
clause will *never* be executed.

> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 f.write(s)
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 break
> =C2=A0=C2=A0=C2=A0 else:
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 f =3D open ('c:/testing.txt', =
'r')
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 f.readlines()
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 for line in f:
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 print =
(line)

Similar beginner questions would be best directed to Python's Tutor
mailinglist: http://mail.python.org/mailman/listinfo/tutor

Cheers,
Chris