This reduces the size of the data segment by **300 KB** of the executable because if the modules are deep-frozen then the marshalled frozen data just wastes space. This was inspired by comment by @gvanrossum in https://github.com/python/cpython/pull/29118#issuecomment-958521863. Note: There is a new option `--deepfreeze-only` in `freeze_modules.py` to change this behavior, it is on be default to save disk space.
```console
# du -s ./python before
27892 ./python
# du -s ./python after
27524 ./python
```
Automerge-Triggered-By: GH:ericsnowcurrently
Py_RunMain() now resets PyImport_Inittab to its initial value at
exit. It must be possible to call PyImport_AppendInittab() or
PyImport_ExtendInittab() at each Python initialization.
* Rename PyImport_Cleanup() to _PyImport_Cleanup() and move it to the
internal C API. Add 'tstate' parameters.
* Remove documentation of _PyImport_Init(), PyImport_Cleanup(),
_PyImport_Fini(). All three were documented as "For internal use
only.".
The concrete PyDict_* API is used to interact with PyInterpreterState.modules in a number of places. This isn't compatible with all dict subclasses, nor with other Mapping implementations. This patch switches the concrete API usage to the corresponding abstract API calls.
We also add a PyImport_GetModule() function (and some other helpers) to reduce a bunch of code duplication.
PR #1638, for bpo-28411, causes problems in some (very) edge cases. Until that gets sorted out, we're reverting the merge. PR #3506, a fix on top of #1638, is also getting reverted.
The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.
__file__.
This causes _frozen_importlib to no longer have __file__ set as well
as any frozen module imported using imp.init_frozen() (which is
deprecated).
PyImport_ImportModuleLevel() with a 'level' of 0 instead of -1 as the
latter is no longer a valid value.
Also added a versionchanged note for PyImport_ImportModuleLevel() just
in case people don't make the connection between changes to
__import__() and this C function.
Lib/imp.py for imp.source_from_cache() instead of its own C version.
Also change PyImport_ExecCodeModuleObject() to not infer the source
path from the bytecode path like
PyImport_ExecCodeModuleWithPathnames() does. This makes the function
less magical.
This also has the side-effect of removing all uses of MAXPATHLEN in
Python/import.c which can cause failures on really long filenames.
defined in sysmodule.c instead of straight out of a Unicode object.
Thanks to Amaury Forgeot d'Arc for noticing the bug and Eric Snow for
writing the patch.
svn+ssh://pythondev@svn.python.org/python/trunk
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r71031 | brett.cannon | 2009-04-01 20:17:39 -0700 (Wed, 01 Apr 2009) | 6 lines
PyImport_AppendInittab() took a char * as a first argument even though that
string was stored beyond the life of the call. Changed the signature to be
const char * to help make this point.
Closes issue #1419652.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r61687 | jeffrey.yasskin | 2008-03-21 06:02:44 +0100 (Fri, 21 Mar 2008) | 2 lines
Speed up test_signal from ~24s to 4s by avoiding nearly all of the sleep calls.
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r61688 | jeffrey.yasskin | 2008-03-21 06:51:37 +0100 (Fri, 21 Mar 2008) | 5 lines
Try to fix test_signal breakages on Linux due to r61687. It appears that at
least two of the linux build bots aren't leaving zombie processes around for
os.waitpid to wait for, causing ECHILD errors. This would be a symptom of a bug
somewhere, but probably not in signal itself.
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r61696 | georg.brandl | 2008-03-21 15:32:33 +0100 (Fri, 21 Mar 2008) | 2 lines
Mark the descitems in the tutorial as "noindex" so that :meth: cross-refs don't link to them.
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r61700 | georg.brandl | 2008-03-21 18:19:29 +0100 (Fri, 21 Mar 2008) | 2 lines
Fix markup.
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r61704 | jeffrey.yasskin | 2008-03-21 19:25:06 +0100 (Fri, 21 Mar 2008) | 3 lines
Try to fix test_signal on FreeBSD. I'm assuming that os.kill is failing to
raise a signal, but switching to subprocess makes the code cleaner anyway.
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r61705 | jeffrey.yasskin | 2008-03-21 19:48:04 +0100 (Fri, 21 Mar 2008) | 7 lines
Speed test_threading up from 14s to .5s, and avoid a deadlock on certain
failures. The test for enumerate-after-join is now a little less rigorous, but
the bug it references says the error happened in the first couple iterations,
so 100 iterations should still be enough.
cProfile was useful for identifying the slow tests here.
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r61707 | georg.brandl | 2008-03-21 20:14:38 +0100 (Fri, 21 Mar 2008) | 2 lines
Fix a code block in __future__ docs.
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r61708 | georg.brandl | 2008-03-21 20:20:21 +0100 (Fri, 21 Mar 2008) | 2 lines
Add docs for __func__ and __self__ on methods.
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r61709 | georg.brandl | 2008-03-21 20:37:57 +0100 (Fri, 21 Mar 2008) | 2 lines
Add docs for print_function and future_builtins. Fixes#2442.
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r61711 | georg.brandl | 2008-03-21 20:54:00 +0100 (Fri, 21 Mar 2008) | 2 lines
#2136: allow single quotes in realm spec.
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r61712 | georg.brandl | 2008-03-21 21:01:51 +0100 (Fri, 21 Mar 2008) | 3 lines
Issue #2432: give DictReader the dialect and line_num attributes
advertised in the docs.
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r61714 | georg.brandl | 2008-03-21 21:11:46 +0100 (Fri, 21 Mar 2008) | 2 lines
#2358: add py3k warning to sys.exc_clear().
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r61715 | georg.brandl | 2008-03-21 21:21:46 +0100 (Fri, 21 Mar 2008) | 2 lines
#2346/#2347: add py3k warning for __methods__ and __members__. Patch by Jack Diederich.
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r61716 | georg.brandl | 2008-03-21 21:38:24 +0100 (Fri, 21 Mar 2008) | 2 lines
#2348: add py3k warning for file.softspace.
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r61718 | georg.brandl | 2008-03-21 21:55:20 +0100 (Fri, 21 Mar 2008) | 2 lines
#2160: document PyImport_GetImporter.
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r61719 | georg.brandl | 2008-03-21 21:55:51 +0100 (Fri, 21 Mar 2008) | 2 lines
Update doc ACKS.
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r61720 | steven.bethard | 2008-03-21 22:01:18 +0100 (Fri, 21 Mar 2008) | 1 line
Replace hack in regrtest.py with use of sys.py3kwarning.
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r61721 | georg.brandl | 2008-03-21 22:05:03 +0100 (Fri, 21 Mar 2008) | 2 lines
Add missing versionadded tag.
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r61722 | christian.heimes | 2008-03-22 00:49:44 +0100 (Sat, 22 Mar 2008) | 3 lines
Applied patch #1657 epoll and kqueue wrappers for the select module
The patch adds wrappers for the Linux epoll syscalls and the BSD kqueue syscalls. Thanks to Thomas Herve and the Twisted people for their support and help.
TODO: Finish documentation documentation
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Brett Cannon
Adam Turner
Kumar Aditya
Victor Stinner
Serhiy Storchaka
Victor Stinner
Stéphane Wirtel
Eric Snow
Senthil Kumaran
Martin Panter
Ezio Melotti
Antoine Pitrou
Éric Araujo
Victor Stinner
Georg Brandl
Barry Warsaw
Benjamin Peterson
Alexandre Vassalotti
Brett Cannon
Martin v. Löwis
Christian Heimes