Python now supports checking bytecode cache up-to-dateness with a hash of the
source contents rather than volatile source metadata. See the PEP for details.
While a fairly straightforward idea, quite a lot of code had to be modified due
to the pervasiveness of pyc implementation details in the codebase. Changes in
this commit include:
- The core changes to importlib to understand how to read, validate, and
regenerate hash-based pycs.
- Support for generating hash-based pycs in py_compile and compileall.
- Modifications to our siphash implementation to support passing a custom
key. We then expose it to importlib through _imp.
- Updates to all places in the interpreter, standard library, and tests that
manually generate or parse pyc files to grok the new format.
- Support in the interpreter command line code for long options like
--check-hash-based-pycs.
- Tests and documentation for all of the above.
bpo-24744: Raise error in pkgutil.walk_packages if path is str
Previously an empty result list was accidentallly returned, since the
code iterated over the string as if it were the expected list of paths,
and of course found nothing.
Along the way, dismantle importlib._bootstrap._SpecMethods as it was
no longer relevant and constructing the new function required
partially dismantling the class anyway.
To make sure there is no issue with code that is both Python 2 and 3
compatible, there are no plans to remove the module any sooner than
Python 4 (unless the community moves to Python 3 solidly before then).
be implicit.
Added a warning for when sys.path_hooks is found to be empty. Also
changed the meaning of None in sys.path_importer_cache to represent
trying sys.path_hooks again (an interpretation of previous semantics).
Also added a warning for when None was found.
The long-term goal is for None in sys.path_importer_cache to represent
the same as imp.NullImporter: no finder found for that sys.path entry.
svn+ssh://svn.python.org/python/branches/py3k
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r73833 | gregory.p.smith | 2009-07-04 04:46:54 +0200 (Sa, 04 Jul 2009) | 20 lines
Merged revisions 73825-73826 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r73825 | gregory.p.smith | 2009-07-03 18:49:29 -0700 (Fri, 03 Jul 2009) | 9 lines
Use select.poll() in subprocess, when available, rather than select() so that
it does not fail when file descriptors are large. Fixes issue3392.
Patch largely contributed by Frank Chu (fpmc) with some improvements by me.
See http://bugs.python.org/issue3392.
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r73826 | gregory.p.smith | 2009-07-03 18:55:11 -0700 (Fri, 03 Jul 2009) | 2 lines
news entry for r73825
........
Candidate for backporting to release31-maint as it is a bug fix and changes no
public API.
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r73838 | gregory.p.smith | 2009-07-04 10:32:15 +0200 (Sa, 04 Jul 2009) | 2 lines
change deprecated unittest method calls into their proper names.
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r73850 | alexandre.vassalotti | 2009-07-05 07:38:18 +0200 (So, 05 Jul 2009) | 3 lines
Issue 4509: Do not modify an array if we know the change would result
in a failure due to exported buffers.
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r73851 | alexandre.vassalotti | 2009-07-05 07:47:28 +0200 (So, 05 Jul 2009) | 2 lines
Add more test cases to BaseTest.test_memoryview_no_resize.
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r73852 | alexandre.vassalotti | 2009-07-05 08:25:14 +0200 (So, 05 Jul 2009) | 5 lines
Fix array.extend and array.__iadd__ to handle the case where an array
is extended with itself.
This bug is specific the py3k version of arraymodule.c
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r73856 | alexandre.vassalotti | 2009-07-05 08:42:44 +0200 (So, 05 Jul 2009) | 6 lines
Issue 4005: Remove .sort() call on dict_keys object.
This caused pydoc to fail when there was a zip file in sys.path.
Patch contributed by Amaury Forgeot d'Arc.
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r73857 | alexandre.vassalotti | 2009-07-05 08:50:08 +0200 (So, 05 Jul 2009) | 2 lines
Add NEWS entries for the changes I made recently.
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