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To: python-list@python.org
From: Peter Otten <__peter__@web.de>
Subject: Re: Creating a function for a directory
Date: Tue, 12 Nov 2013 11:24:02 +0100
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Xref: csiph.com comp.lang.python:59179

unknown wrote:

> On Mon, 11 Nov 2013 14:26:46 -0800, Matt wrote:
> 
>> So I want to take the file, "desktop/test.txt" and write it to
>> "desktop/newfolder/test.txt". I tried the below script, and it gave me:
>> "IOError: [Errno 2] No such file or directory: 'desktop/%s.txt'". Any
>> suggestions would be great.
>> 
>> 
>> 
>> def firstdev(file):
>> in_file = open("desktop/%s.txt") % file indata = in_file.read()
>> out_file = open("desktop/newfolder/%s.txt", 'w') % file
>> out_file.write(indata)
>> out_file.close()
>> in_file.close()
>> 
>> firstdev("test")
> 
> would it not be more efficient and less error prone to use the os module
> to copy the file rather than manually reading & re-writing it (unless of-
> course you intend to expand this in future to process the data first)?

Hmm, I don't see a suitable function in os -- but there is 

shutil.copy()