slicing the end of a string in a list

[Paul Rubin]

Steve Holden <steve at holdenweb.com> writes:
> >>>[line.rstrip() for line in open('C:\\switches.txt')]
> > How would I manually close a file that's been opened this way? Or is
> > it not possible in this case? Is it necessary?
>
> In CPython it's not strictly necessary to close the file, but other
> implementations don't guarantee that a file will be closed after the
> last reference is deleted.
> 
> So for fullest portability it's better explicitly close the file.

I wonder whether PEP 343 should be extended somehow.  Hmm.

  [line.rstrip() for line within open('C:\\switches.txt')]   # ugh!!

Other ideas?