Message 101531 - Python tracker

Message101531

Author	michael.foord
Recipients	michael.foord, ncoghlan
Date	2010-03-22.20:21:44
SpamBayes Score	0.0002753529
Marked as misclassified	No
Message-id	<1269289306.17.0.0782561601798.issue8202@psf.upfronthosting.co.za>
In-reply-to

Content
When you execute "python -m package" the package is first imported with sys.argv[0] set to '-c' (and sys.modules['__main__'] exists but is empty. Then package.__main__.py is executed with the correct sys.argv[0]. This means module level code executed during the initial import that attempts to work out how the code is being executed can't use either sys.modules['__main__'] or sys.argv[0].

Content

When you execute "python -m package" the package is first imported with sys.argv[0] set to '-c' (and sys.modules['__main__'] exists but is empty. Then package.__main__.py is executed with the correct sys.argv[0].

This means module level code executed during the initial import that attempts to work out how the code is being executed can't use either sys.modules['__main__'] *or* sys.argv[0].

History
Date	User	Action	Args
2010-03-22 20:21:46	michael.foord	set	recipients: + michael.foord, ncoghlan
2010-03-22 20:21:46	michael.foord	set	messageid: <1269289306.17.0.0782561601798.issue8202@psf.upfronthosting.co.za>
2010-03-22 20:21:44	michael.foord	link	issue8202 messages
2010-03-22 20:21:44	michael.foord	create