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Fri, 10 Jan 2025 13:00:03 -0800 (PST) User-Agent: Mozilla Thunderbird Content-Language: en-US In-Reply-To: <616dcf1e-4f82-48ed-851c-fe5342f42f40@mrabarnett.plus.com> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <735b7965-c16c-45a7-a2b8-d9ff1adc21ba@gmail.com> <616dcf1e-4f82-48ed-851c-fe5342f42f40@mrabarnett.plus.com> Bytes: 6720 On 1/10/25 11:32, MRAB via Python-list wrote: >> ,,, snipped >> Below is the pertinent code: >> >>    Popen(choice, stdout=PIPE, stderr=PIPE, >>                     stdin=PIPE, close_fds=True) >> >> My guess is my argument list is either insufficient or an argument is >> causing the problem, but am unsure of which. >> >> I have been retired from python programming for ten years, and am pretty >> rusty, but it is still fun. There are plenty >> >> of other ways to successfully launch audacity but it would be great to >> make it work from this script. >> > > What is the value of 'choice'? > > You could try printing out the value of 'choice' for one that works > and the one that doesn't and then try them again interactively from > the Python prompt with the given values. That should eliminate all but > the essential code for easier debugging. choice is /usr/local/bin/audacity, which is the correct path for audacity on my system. As far as I can see, that string has no hidden bytes. Invoking /usr/local/bin/audacity from the command line launches audacity and so does choosing  with dmenu_run. which -a audacity shows only that item. Maybe I need to isolate the function call and start stripping out parameters. I should have time to do that later today. Thanks