Message10656

Author	darjus
Recipients	darjus, jeff.allen, teeohhem, zyasoft
Date	2016-01-19.10:59:07
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1453201148.88.0.667322737391.issue2441@psf.upfronthosting.co.za>
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Down the rabbit hole: https://mail.python.org/pipermail/python-dev/2006-March/062453.html https://mail.python.org/pipermail/python-list/2015-March/687466.html http://forum.freecadweb.org/viewtopic.php?t=8399 To summarize: in CPython if it is embedded, they provide the executable path of the executing program and not None, even though sys.executable may be None according to Python documentation. I literally could not find a case on the web for 'if sys.executable is None' except in Jython. And apparently this is a recurring issue ( http://bugs.jython.org/issue1452 ) for us. The usage of sys.executable from the perspective of the user in an embedded system is mostly useless (you can't execute python again via uwsgi or py2exe), but it saves it from the Billion Dollar Mistake (https://en.wikipedia.org/wiki/Null_pointer). Where I'm going with this is instead of sprinkling sys.executable is None all over the world, we stick java.home property + /bin/java(.exe). What do you guys think?

Down the rabbit hole: https://mail.python.org/pipermail/python-dev/2006-March/062453.html https://mail.python.org/pipermail/python-list/2015-March/687466.html http://forum.freecadweb.org/viewtopic.php?t=8399

To summarize: in CPython if it is embedded, they provide the executable path of the executing program and not None, even though sys.executable may be None according to Python documentation. I literally could not find a case on the web for 'if sys.executable is None' except in Jython. And apparently this is a recurring issue ( http://bugs.jython.org/issue1452 ) for us.

The usage of sys.executable from the perspective of the user in an embedded system is mostly useless (you can't execute python again via uwsgi or py2exe), but it saves it from the Billion Dollar Mistake (https://en.wikipedia.org/wiki/Null_pointer).

Where I'm going with this is instead of sprinkling sys.executable is None all over the world, we stick java.home property + /bin/java(.exe).

What do you guys think?

History
Date	User	Action	Args
2016-01-19 10:59:08	darjus	set	messageid: <1453201148.88.0.667322737391.issue2441@psf.upfronthosting.co.za>
2016-01-19 10:59:08	darjus	set	recipients: + darjus, zyasoft, jeff.allen, teeohhem
2016-01-19 10:59:08	darjus	link	issue2441 messages
2016-01-19 10:59:07	darjus	create