delta/cpython-git.git/Lib/importlib/_bootstrap.py, branch fix-misc-acks

bpo-32303 - Consistency fixes for namespace loaders (GH-5481) (#5503)

2018-02-03T00:49:25+00:00

* Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
* Make sure ``__spec__.origin` matches ``__file__`` for namespace packages.

https://bugs.python.org/issue32303
https://bugs.python.org/issue32305
(cherry picked from commit bbbcf8693b876daae4469765aa62f8924f39a7d2)

Co-authored-by: Barry Warsaw

bpo-21720: Restore the Python 2.7 logic in handling a fromlist. (#4118)

2017-10-26T07:41:59+00:00

BytesWarning no longer emitted when the fromlist argument of
__import__() or the __all__ attribute of the module contain bytes
instances.

bpo-31642: Restore blocking "from" import by setting None in sys.modules. (#3834)

2017-10-08T07:44:10+00:00

Trivial cleanups following bpo-31370 (#3649)

2017-09-18T21:50:44+00:00

* Trivial cleanups following bpo-31370

* Also cleanup the "importlib._bootstrap_external" module

bpo-31070: Fix a race condition in importlib _get_module_lock(). (#3033)

2017-08-09T11:29:12+00:00

bpo-30891: Fix again importlib _find_and_load() (#2665)

2017-07-21T11:00:46+00:00

Use sys.modules.get() in the "with _ModuleLockManager(name):" block
to protect the dictionary key with the module lock and use an atomic
get to prevent race condition.

Remove also _bootstrap._POPULATE since it was unused
(_bootstrap_external now has its own _POPULATE object), add a new
_SENTINEL object instead.

bpo-30876: Relative import from unloaded package now reimports the package (#2639)

2017-07-12T03:50:03+00:00

instead of failing with SystemError.

Relative import from non-package now fails with ImportError rather than
SystemError.

bpo-30891: Fix importlib _find_and_load() race condition (#2646)

2017-07-10T20:52:32+00:00

* Rewrite importlib _get_module_lock(): it is now responsible to hold
  the imp lock directly.
* _find_and_load() now holds the module lock to check if name is in
  sys.modules to prevent a race condition

bpo-30814: Fixed a race condition when import a submodule from a package. (#2580)

2017-07-06T05:09:03+00:00

bpo-22257: Small changes for PEP 432. (#1728)

2017-05-23T04:36:03+00:00

PEP 432 specifies a number of large changes to interpreter startup code, including exposing a cleaner C-API. The major changes depend on a number of smaller changes. This patch includes all those smaller changes.