delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2005/09/16/07:59:05

Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Date: Fri, 16 Sep 2005 07:56:34 -0400
From: Jason Tishler <jason AT tishler DOT net>
To: cygwin AT cygwin DOT com
Subject: Re: Python extension package problem & root-cause
Message-ID: <20050916115634.GA1480@tishler.net>
Mail-Followup-To: cygwin AT cygwin DOT com
References: <1FA0F815-D70C-47E4-AEC0-AF21AC773F99 AT acm DOT org>
Mime-Version: 1.0
In-Reply-To: <1FA0F815-D70C-47E4-AEC0-AF21AC773F99@acm.org>
User-Agent: Mutt/1.4.1i
X-IsSubscribed: yes

John,

On Thu, Sep 15, 2005 at 10:54:32PM -0700, John Whitley wrote:
> The test "string.find(...) != -1" attempts to test whether "/usr"
> appears in the full executable name.  This incorrectly fails in the
> case that /bin is in the user's path before /usr/bin
> (i.e. string.find("/bin/python","/usr") == -1).  Note that a vagary of
> Cygwin is that /usr/bin is a Cygwin mount to /bin.

Thank you very much for the detailed analysis!

> Workaround:
> 
> The workaround is to ensure that /usr/bin appears in your path before
> /bin. It looks like a new and improved Cygwin special case test is
> needed to fix this problem; I'm not sure offhand what the best case
> would be. Perhaps an outright test as follows would work:
> sys.executable.startswith(sys.exec_prefix) or
> sys.executable.startswith(os.sep+"bin")

Unfortunately, I'm not sure what is the best way to solve this problem.
I will try to get a discussion going on SF...

Thanks,
Jason

-- 
PGP/GPG Key: http://www.tishler.net/jason/pubkey.asc or key servers
Fingerprint: 7A73 1405 7F2B E669 C19D  8784 1AFD E4CC ECF4 8EF6

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019