On Wed, Apr 4, 2012 at 3:53 PM, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote: > On Tue, 03 Apr 2012 15:46:31 -0400, D'Arcy Cain wrote: > >> def cp(infile, outfile): >> open(outfile, "w").write(open(infile).read()) > > Because your cp doesn't copy the FILE, it copies the file's CONTENTS, > which are not the same thing.
And, as a subtle point: This method can't create the file "at size". I don't know how it'll end up allocating space, but certainly there's no opportunity to announce to the OS at file open/create time "please allocate X bytes for this file". That may be an utterly trivial point, or a crucially vital one. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
