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From: Ned Deily <nad@acm.org>
Subject: Re: shutil.copyfile is incomplete (truncated)
Date: Fri, 12 Apr 2013 00:53:29 -0700
References: <51674ffc$0$29977$c3e8da3$5496439d@news.astraweb.com> <20130412011550.GA80724@cskk.homeip.net> <mailman.498.1365730418.3114.python-list@python.org> <a2ebf26b-b616-4186-84e4-6d88cd94f267@googlegroups.com> <6eeabeb2-e6dd-49fc-bd64-8de53965189b@googlegroups.com>
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In article <6eeabeb2-e6dd-49fc-bd64-8de53965189b@googlegroups.com>,
 Rob Schneider <rmschne@gmail.com> wrote:
> > The file system is Mac OS Extended Journaled (default as out of the box).
> It shows file size 45,056 on both source and target, which is the file size 
> of the flawed target, and is not what Finder shows for source.

Perhaps the source file has an OS X resource fork or other extended 
attribute metadata.  shutil's copy functions won't handle those.  One 
way to see if that is the case is to examine the source file in a 
terminal window with:  ls -l@

$ ls -l@ test.jpg
-rw-r--r--@ 1 nad  staff  40359 Jul 15  2009 test.jpg
   com.apple.FinderInfo    32
   com.apple.ResourceFork  899489

-- 
 Ned Deily,
 nad@acm.org