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| author | Brett Cannon <brett@python.org> | 2013-05-31 22:56:47 (GMT) |
|---|---|---|
| committer | Brett Cannon <brett@python.org> | 2013-05-31 22:56:47 (GMT) |
| commit | 0dbb4c7f1338d1391e7214b564ef4638bc257347 (patch) | |
| tree | d9bd89758691c3b739c68e7eb50b444b15186bd1 /Doc/whatsnew | |
| parent | f1d7b11db905db5b40e2d97fa21af06871cf89ff (diff) | |
| download | cpython-0dbb4c7f1338d1391e7214b564ef4638bc257347.zip cpython-0dbb4c7f1338d1391e7214b564ef4638bc257347.tar.gz cpython-0dbb4c7f1338d1391e7214b564ef4638bc257347.tar.bz2 | |
Issues #18088, 18089: Introduce
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.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.4.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index 21addc4..a659fc0 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -232,7 +232,10 @@ Deprecated functions and types of the C API Deprecated features ------------------- -* None yet. +* :func:`importlib.util.module_for_loader` is pending deprecation. Using + :func:`importlib.util.module_to_load` and + :meth:`importlib.abc.Loader.init_module_attrs` allows subclasses of a loader + to more easily customize module loading. Porting to Python 3.4 |