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Re: shutil.copyfile is incomplete (truncated)

From Neil Cerutti <neilc@norwich.edu>
Newsgroups comp.lang.python
Subject Re: shutil.copyfile is incomplete (truncated)
Date 2013-04-11 18:53 +0000
Organization Norwich University
Message-ID <asof5aFknkrU1@mid.individual.net> (permalink)
References <e8878747-fd9d-41d2-9ce1-096a65590f84@googlegroups.com>

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On 2013-04-11, Rob Schneider <rmschne@gmail.com> wrote:
> Using Python 2.7.2 on OSX, I have created a file in temp space,
> then use the function "shutil.copyfile(fn,loc+fname)" from "fn"
> to "loc+fname".
>
> At the destination location, the file is truncated. About 10%
> of the file is lost.  Original file is unchanged.
>
> I added calls to "statinfo" immediately after the copy, and all
> looks ok (correct file size).
>
> filecmp.cmp(fn,loc+fname)
> print "Statinfo    :"+fn+":\n", os.stat(fn)
> print "Statinfo    :"+loc+fname+":\n", os.stat(loc+fname)
>
> But when I look at the file in Finder, destination is smaller
> and even looking at the file (with text editor) file is
> truncated.
>
> What could be causing this?

Could fn be getting some changes written after the copy is made?

Is the file flushed/closed before you copy it?

-- 
Neil Cerutti

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Thread

shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 11:12 -0700
  Re: shutil.copyfile is incomplete (truncated) Neil Cerutti <neilc@norwich.edu> - 2013-04-11 18:53 +0000
    Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 12:07 -0700
      Re: shutil.copyfile is incomplete (truncated) Neil Cerutti <neilc@norwich.edu> - 2013-04-11 19:55 +0000
        Re: shutil.copyfile is incomplete (truncated) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-12 00:06 +0000
          Re: shutil.copyfile is incomplete (truncated) Cameron Simpson <cs@zip.com.au> - 2013-04-12 11:15 +1000
          Re: shutil.copyfile is incomplete (truncated) Ned Deily <nad@acm.org> - 2013-04-11 18:33 -0700
            Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:32 -0700
              Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:53 -0700
                Re: shutil.copyfile is incomplete (truncated) Ned Deily <nad@acm.org> - 2013-04-12 00:53 -0700
              Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:53 -0700
              Re: shutil.copyfile is incomplete (truncated) Cameron Simpson <cs@zip.com.au> - 2013-04-12 18:26 +1000
                Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-12 02:18 -0700
                Re: shutil.copyfile is incomplete (truncated) Chris Angelico <rosuav@gmail.com> - 2013-04-12 19:22 +1000
                Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-12 05:07 -0700
                Re: shutil.copyfile is incomplete (truncated) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-04-12 13:18 +0100
                Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-12 05:07 -0700
                Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-12 02:18 -0700
                Re: shutil.copyfile is incomplete (truncated) Roy Smith <roy@panix.com> - 2013-04-12 10:57 -0400
                Re: shutil.copyfile is incomplete (truncated) Roy Smith <roy@panix.com> - 2013-04-12 10:54 -0400
            Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:32 -0700
              Re: shutil.copyfile is incomplete (truncated) Roy Smith <roy@panix.com> - 2013-04-12 10:47 -0400
          Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:27 -0700
          Re: shutil.copyfile is incomplete (truncated) Roy Smith <roy@panix.com> - 2013-04-12 10:51 -0400
          Re: shutil.copyfile is incomplete (truncated) 88888 Dihedral <dihedral88888@googlemail.com> - 2013-04-12 08:49 -0700
          Re: shutil.copyfile is incomplete (truncated) Nobody <nobody@nowhere.com> - 2013-04-13 03:33 +0100
            Re: shutil.copyfile is incomplete (truncated) Chris Angelico <rosuav@gmail.com> - 2013-04-13 13:05 +1000
            [OT] Lying hard drives [was Re: shutil.copyfile is incomplete (truncated)] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-04-13 03:17 +0000
              Re: [OT] Lying hard drives [was Re: shutil.copyfile is incomplete (truncated)] Chris Angelico <rosuav@gmail.com> - 2013-04-13 13:43 +1000
        Re: shutil.copyfile is incomplete (truncated) Rob Schneider <rmschne@gmail.com> - 2013-04-11 23:25 -0700
          Re: shutil.copyfile is incomplete (truncated) Chris Angelico <rosuav@gmail.com> - 2013-04-12 17:32 +1000
          Re: shutil.copyfile is incomplete (truncated) Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-12 10:48 -0400

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