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Date: Wed, 14 Nov 2012 10:02:45 +0000
From: Tim Golden <mail@timgolden.me.uk>
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On 14/11/2012 00:33, Ali Akhavan wrote:
> I am trying to open a file in 'w' mode open('file', 'wb'). open()
> will throw with IOError with errno 13 if the file is locked by
> another application or if user does not have permission to open/write
> to the file.

What version of Python are you using?

> 
> How can I distinguish these two cases ? Namely, if some application
> has the file open or not.

Can I ask what you expect to do differently in each of those cases? In
other words, if you can't access the file, you can't access it. (Not to
dismiss your question; I just wonder how you're going to handle the
different cases)

TJG