Message 212384 - Python tracker

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Author	ned.deily
Recipients	navalkgupta, ned.deily, peter.otten, vstinner
Date	2014-02-27.20:44:49
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1393533889.65.0.58047857797.issue20794@psf.upfronthosting.co.za>
In-reply-to

Content
As Peter notes, .pyc and .pyo files are in general not compatible across Python versions. PEP 3147 was implemented in Python 3.2 to help avoid the problem you are seeing by storing .pyc/.pyo files with version-specific filenames. For Python 2, you need to be careful to recompile (see "compileall") or delete .pyc/.pyo files when changing interpreter versions. http://docs.python.org/3/whatsnew/3.2.html#pep-3147-pyc-repository-directories http://docs.python.org/2/library/compileall.html

As Peter notes, .pyc and .pyo files are in general not compatible across Python versions.  PEP 3147 was implemented in Python 3.2 to help avoid the problem you are seeing by storing .pyc/.pyo files with version-specific filenames.  For Python 2, you need to be careful to recompile (see "compileall") or delete .pyc/.pyo files when changing interpreter versions. 

http://docs.python.org/3/whatsnew/3.2.html#pep-3147-pyc-repository-directories
http://docs.python.org/2/library/compileall.html

History
Date	User	Action	Args
2014-02-27 20:44:49	ned.deily	set	recipients: + ned.deily, peter.otten, vstinner, navalkgupta
2014-02-27 20:44:49	ned.deily	set	messageid: <1393533889.65.0.58047857797.issue20794@psf.upfronthosting.co.za>
2014-02-27 20:44:49	ned.deily	link	issue20794 messages
2014-02-27 20:44:49	ned.deily	create