https://hg.dopieralski.pl/cpython-lru_cache-weakref/ en-us Python/importlib.h revision history https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/b5bbd47a9bc4/Python/importlib.h module loaders.

Due to the fact that the call signatures for extension modules and
built-in modules does not allow for the specifying of what module to
initialize and that on Windows all extension modules are built-in
modules, work to clean up built-in and extension module initialization
will have to wait until Python 3.5. Because of this the semantics of
exec_module() would be incorrect, so removing the methods for now is
the best option; load_module() is still used as a fallback by
importlib and so this won't affect semantics.]]> Brett Cannon <brett@python.org> Fri, 29 Nov 2013 11:00:11 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/2e4169aac667/Python/importlib.h Brett Cannon <brett@python.org> Fri, 22 Nov 2013 14:52:36 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/c8a84eed9155/Python/importlib.h Brett Cannon <brett@python.org> Fri, 22 Nov 2013 12:07:43 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/2bea86df60b9/Python/importlib.h Brett Cannon <brett@python.org> Fri, 22 Nov 2013 11:58:17 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/07229c6104b1/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Fri, 22 Nov 2013 09:05:39 -0700 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e071977772bf/Python/importlib.h Brett Cannon <brett@python.org> Fri, 01 Nov 2013 14:04:24 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/17d730d37b2f/Python/importlib.h importlib.machinery.FileFinder.

While originally moved to stop special-casing '' as PathFinder farther
up the typical call chain now uses the cwd in the instance of '', it
was deemed an unnecessary risk to breaking subclasses of FileFinder to
take the special-casing out.]]> Brett Cannon <brett@python.org> Fri, 01 Nov 2013 10:37:57 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/88c3a1a3c2ff/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Thu, 31 Oct 2013 22:22:15 -0600 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/bb2affc1e317/Python/importlib.h Benjamin Peterson <benjamin@python.org> Sun, 20 Oct 2013 17:50:28 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/35b384ed594b/Python/importlib.h Benjamin Peterson <benjamin@python.org> Sat, 19 Oct 2013 16:01:13 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/11f2f4af1979/Python/importlib.h exists when checking for a package.

Before there was an isdir check and then various isfile checks for
possible __init__ files when looking for a package.
This change drops the isdir check by leaning
on the assumption that a directory will not contain something named
after the module being imported which is not a directory. If the module
is a package then it saves a stat call. If there is nothing in the
directory with the potential package name it also saves a stat call.
Only if there is something in the directory named the same thing as
the potential package will the number of stat calls increase
(due to more wasteful __init__ checks).

Semantically there is no change as the isdir check moved
down so that namespace packages continue to have no chance of
accidentally collecting non-existent directories.]]> Brett Cannon <brett@python.org> Fri, 18 Oct 2013 13:24:13 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/33844153cd02/Python/importlib.h now that self.path is no longer forced to '.'.]]> Brett Cannon <brett@python.org> Fri, 18 Oct 2013 12:01:06 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/76184b5339f2/Python/importlib.h and stop importlib.machinery.FileFinder treating '' as '.'.

Previous PathFinder transformed '' into '.' which led to __file__ for
modules imported from the cwd to always be relative paths. This meant
the values of the attribute were wrong as soon as the cwd changed.
This change now means that as long as the site module is run (which
makes all entries in sys.path absolute) then all values for __file__
will also be absolute unless it's for __main__ when specified by file
path in a relative way (modules imported by runpy will have an
absolute path).

Now that PathFinder is no longer treating '' as '.' it only makes
sense for FileFinder to stop doing so as well. Now no transformation
is performed for the directory given to the __init__ method.

Thanks to Madison May for the initial patch.]]> Brett Cannon <brett@python.org> Fri, 18 Oct 2013 11:39:04 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/4059e871e74e/Python/importlib.h Antoine Pitrou <solipsis@pitrou.net> Sat, 12 Oct 2013 22:25:39 +0200 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/9354df85afd7/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Thu, 03 Oct 2013 15:16:03 -0600 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/f739d1ab5af0/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Thu, 03 Oct 2013 13:34:40 -0600 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/0d079c66dc23/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Thu, 03 Oct 2013 12:08:55 -0600 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/152f72356670/Python/importlib.h Eric Snow <ericsnowcurrently@gmail.com> Thu, 03 Oct 2013 12:08:55 -0600 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/a1282b67b4cf/Python/importlib.h Meador Inge <meadori@gmail.com> Tue, 03 Sep 2013 19:54:40 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/ba850a78cbbc/Python/importlib.h
This commit fixes a regression that sneaked into Python 3.3 where importlib
was not respecting -E when checking for the PYTHONCASEOK environment variable.]]> Meador Inge <meadori@gmail.com> Tue, 03 Sep 2013 16:53:22 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/33d379c2bb79/Python/importlib.h constants in importlib._bootstrap. Along the way clean up from string
interpolation to use the repr explicitly.

Initial patch by Madison May.]]> Brett Cannon <brett@python.org> Fri, 12 Jul 2013 11:04:23 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e80634ad5a0e/Python/importlib.h Brett Cannon <brett@python.org> Sat, 06 Jul 2013 18:04:41 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/0d590683c8d1/Python/importlib.h
The private attribute was leaking out of importlib and led to at least
one person noticing it. Switch to another hack which won't leak
outside of importlib and is nearly as robust.]]> Brett Cannon <brett@python.org> Sat, 06 Jul 2013 14:48:18 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/ee9662d77ebb/Python/importlib.h ModuleNotFoundError.]]> Brett Cannon <brett@python.org> Thu, 04 Jul 2013 17:51:50 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e3ec8b176a80/Python/importlib.h Brett Cannon <brett@python.org> Thu, 04 Jul 2013 17:48:16 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/03ad17618ac4/Python/importlib.h Brett Cannon <brett@python.org> Sun, 16 Jun 2013 19:09:46 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/bdd60bedf933/Python/importlib.h
The helper function makes it easier to implement
imoprtlib.abc.InspectLoader.get_source() by making that function
require just the raw bytes for source code and handling all other
details.]]> Brett Cannon <brett@python.org> Sun, 16 Jun 2013 18:37:53 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e353f64dfd95/Python/importlib.h UnicodeDecodeError as ImportError. That was over-reaching the point of
raising ImportError in get_source() (which is to signal the source
code was not found when it should have). Conflating the two exceptions
with ImportError could lead to masking errors with the source which
should be known outside of whether there was an error simply getting
the source to begin with.]]> Brett Cannon <brett@python.org> Sun, 16 Jun 2013 18:05:54 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/205aa49e5cd5/Python/importlib.h loaders where C code provides the loaded module.]]> Brett Cannon <brett@python.org> Sun, 16 Jun 2013 17:23:06 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/ebec625b13f9/Python/importlib.h conform the the InspectLoader ABC. Perk of this is that runpy/-m can
now work with namespace packages.]]> Brett Cannon <brett@python.org> Sun, 16 Jun 2013 14:56:58 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/9cacdb9d0c59/Python/importlib.h Brett Cannon <brett@python.org> Fri, 14 Jun 2013 22:26:30 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/5619bc2d8207/Python/importlib.h deprecation of imp.get_magic().]]> Brett Cannon <brett@python.org> Fri, 14 Jun 2013 19:02:34 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/3a50025f1900/Python/importlib.h
Forgot to raise ModuleNotFoundError when None is found in sys.modules.
This led to introducing the C function PyErr_SetImportErrorSubclass()
to make setting ModuleNotFoundError easier.

Also updated the reference docs to mention ModuleNotFoundError
appropriately. Updated the docs for ModuleNotFoundError to mention the
None in sys.modules case.

Lastly, it was noticed that PyErr_SetImportError() was not setting an
exception when returning None in one case. That issue is now fixed.]]> Brett Cannon <brett@python.org> Wed, 12 Jun 2013 23:29:18 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/8a0ed9f63c6e/Python/importlib.h ImportError.

The exception is raised by import when a module could not be found.
Technically this is defined as no viable loader could be found for the
specified module. This includes ``from ... import`` statements so that
the module usage is consistent for all situations where import
couldn't find what was requested.

This should allow for the common idiom of::

try:
import something
except ImportError:
pass

to be updated to using ModuleNotFoundError and not accidentally mask
ImportError messages that should propagate (e.g. issues with a
loader).

This work was driven by the fact that the ``from ... import``
statement needed to be able to tell the difference between an
ImportError that simply couldn't find a module (and thus silence the
exception so that ceval can raise it) and an ImportError that
represented an actual problem.]]> Brett Cannon <brett@python.org> Wed, 12 Jun 2013 16:59:46 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/6b189f29b1e6/Python/importlib.h Brett Cannon <brett@python.org> Wed, 05 Jun 2013 18:37:50 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/9e833c1edeb6/Python/importlib.h EOF is hit while trying to read the header of a bytecode file.]]> Brett Cannon <brett@python.org> Tue, 04 Jun 2013 17:34:49 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e873f2e67353/Python/importlib.h importlib.abc.Loader.init_module_attrs() and implement
importlib.abc.InspectLoader.load_module().

The importlib.abc.Loader.init_module_attrs() method sets the various
attributes on the module being loaded. It is done unconditionally to
support reloading. Typically people used
importlib.util.module_for_loader, but since that's a decorator there
was no way to override it's actions, so init_module_attrs() came into
existence to allow for overriding. This is also why module_for_loader
is now pending deprecation (having its other use replaced by
importlib.util.module_to_load).

All of this allowed for importlib.abc.InspectLoader.load_module() to
be implemented. At this point you can now implement a loader with
nothing more than get_code() (which only requires get_source();
package support requires is_package()). Thanks to init_module_attrs()
the implementation of load_module() is basically a context manager
containing 2 methods calls, a call to exec(), and a return statement.]]> Brett Cannon <brett@python.org> Fri, 31 May 2013 18:56:47 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/6ace4133c1c0/Python/importlib.h explains better what the context manager is providing.]]> Brett Cannon <brett@python.org> Thu, 30 May 2013 17:31:47 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/185a0e649fb8/Python/importlib.h and __package__ unconditionally in order to do the right thing for
reloading.]]> Brett Cannon <brett@python.org> Tue, 28 May 2013 18:35:54 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/a49c22a1bfbd/Python/importlib.h Brett Cannon <brett@python.org> Tue, 28 May 2013 17:50:04 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/3a1976680717/Python/importlib.h handle providing (and cleaning up if needed) the module to be loaded.

A future commit will use the context manager in
Lib/importlib/_bootstrap.py and thus why the code is placed there
instead of in Lib/importlib/util.py.]]> Brett Cannon <brett@python.org> Tue, 28 May 2013 17:29:34 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/6db3741e59be/Python/importlib.h Benjamin Peterson <benjamin@python.org> Thu, 16 May 2013 14:37:25 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/3d858f1eef54/Python/importlib.h Benjamin Peterson <benjamin@python.org> Wed, 15 May 2013 15:26:42 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/e39a8f8ceb9f/Python/importlib.h attributes to None.

The long-term goal is for people to be able to rely on these
attributes existing and checking for None to see if they have been
set. Since import itself sets these attributes when a loader does not
the only instances when the attributes are None are from someone
overloading __import__() and not using a loader or someone creating a
module from scratch.

This patch also unifies module initialization. Before you could have
different attributes with default values depending on how the module
object was created. Now the only way to not get the same default set
of attributes is to circumvent initialization by calling
ModuleType.__new__() directly.]]> Brett Cannon <brett@python.org> Sat, 04 May 2013 13:56:58 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/cf65c7a75f55/Python/importlib.h Benjamin Peterson <benjamin@python.org> Tue, 30 Apr 2013 09:41:40 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/04aaeae6ee7b/Python/importlib.h bytecode files in py_compile.

Thanks to Arfrever Frehtes Taifersar Arahesis for the bug report.]]> Brett Cannon <brett@python.org> Sun, 14 Apr 2013 12:48:15 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/8e733e30edf6/Python/importlib.h the default exception/value when called instead of raising/returning
NotimplementedError/NotImplemented (except where appropriate).
This should allow for the ABCs to act as the bottom/end of the MRO with expected
default results.

As part of this work, also make importlib.abc.Loader.module_repr()
optional instead of an abstractmethod.]]> Brett Cannon <brett@python.org> Tue, 09 Apr 2013 16:59:39 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/9a44e845a90e/Python/importlib.h Brett Cannon <brett@python.org> Mon, 01 Apr 2013 13:25:40 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/fa38ea42e5b8/Python/importlib.h Benjamin Peterson <benjamin@python.org> Wed, 27 Mar 2013 17:53:17 -0400 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/a2128cb22372/Python/importlib.h Benjamin Peterson <benjamin@python.org> Thu, 21 Mar 2013 23:04:45 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/a06fc2c2342a/Python/importlib.h Benjamin Peterson <benjamin@python.org> Wed, 13 Mar 2013 14:06:39 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/7647aae9481c/Python/importlib.h set __loader__ on a module when set to None.

Thanks to Gökcen Eraslan for the fix.]]> Brett Cannon <brett@python.org> Wed, 13 Mar 2013 10:41:36 -0700 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/d98a82f4c9bd/Python/importlib.h
First, because the mtime can exceed 4 bytes, make sure to mask it down to 4
bytes before getting its little-endian representation for writing out to a .pyc
file.

Two, cap an rsplit() call to 1 split, else can lead to too many values being
returned for unpacking.]]> Brett Cannon <brett@python.org> Mon, 25 Feb 2013 17:10:11 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/2528e4aea338/Python/importlib.h Serhiy Storchaka <storchaka@gmail.com> Mon, 25 Feb 2013 15:40:33 +0200 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/cf0b7d3e5fc6/Python/importlib.h Ezio Melotti <ezio.melotti@gmail.com> Wed, 20 Feb 2013 22:15:47 +0200 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/6917402c6191/Python/importlib.h Benjamin Peterson <benjamin@python.org> Sun, 10 Feb 2013 09:48:22 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/d296cf1600a8/Python/importlib.h Benjamin Peterson <benjamin@python.org> Sun, 10 Feb 2013 09:29:59 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/306f066e6a33/Python/importlib.h Brett Cannon <brett@python.org> Fri, 01 Feb 2013 16:36:29 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/1f1a1b3cc416/Python/importlib.h Brett Cannon <brett@python.org> Fri, 01 Feb 2013 14:07:28 -0500 https://hg.dopieralski.pl/cpython-lru_cache-weakref/log/0369b352dc85/Python/importlib.h Brett Cannon <brett@python.org> Sun, 27 Jan 2013 13:04:56 -0500