Re: [Python-Dev] [Python-checkins] r84685 - in python/branches/py3k: Doc/library/dis.rst Doc/reference/simple_stmts.rst Doc/whatsnew/3.2.rst Include/opcode.h Lib/opcode.py Lib/test/test_exceptions.py Lib/test/test_scope.py Lib/test/test_syntax.py Misc/NEWS Python
On Sat, Sep 11, 2010 at 7:39 AM, amaury.forgeotdarc <python-checkins@python.org> wrote:
There is no need to bump the PYC magic number: the new opcode is used for code that did not compile before.
If the magic number doesn't change for 3.2, how will 3.1 know it can't run pyc and pyo files containing these opcodes? The magic number needs a bump or this change may cause SystemErrors when older versions attempt to run affected pyc files. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia
2010/9/10 Nick Coghlan <ncoghlan@gmail.com>:
On Sat, Sep 11, 2010 at 7:39 AM, amaury.forgeotdarc <python-checkins@python.org> wrote:
There is no need to bump the PYC magic number: the new opcode is used for code that did not compile before.
If the magic number doesn't change for 3.2, how will 3.1 know it can't run pyc and pyo files containing these opcodes?
The magic number is already bumped since 3.1. However, it's true that the number should be bumped anyway for good measure. -- Regards, Benjamin
On Sat, Sep 11, 2010 at 10:33 AM, Benjamin Peterson <benjamin@python.org> wrote:
2010/9/10 Nick Coghlan <ncoghlan@gmail.com>:
On Sat, Sep 11, 2010 at 7:39 AM, amaury.forgeotdarc <python-checkins@python.org> wrote:
There is no need to bump the PYC magic number: the new opcode is used for code that did not compile before.
If the magic number doesn't change for 3.2, how will 3.1 know it can't run pyc and pyo files containing these opcodes?
The magic number is already bumped since 3.1. However, it's true that the number should be bumped anyway for good measure.
Yeah, I saw your subsequent checkin. I've updated the comment just above MAGIC and TAG to make it clearer when they should be changed. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia
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