ilusha/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython synced 2026-09-29 12:10:30 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Issue #20884: whatsnew: Frozen modules don't set __file__ anymore.

Browse source
This commit is contained in:
Brett Cannon 2014-03-14 09:46:28 -04:00
parent 698abe75d4
commit f0b2ef1502
1 changed files with 8 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Doc/whatsnew/3.4.rst
View file

@ -2275,6 +2275,14 @@ Changes in the Python API
to determine if a module is a package or not is to use``hasattr(module,
'__path__')`` (:issue:`18065`).
* Frozen modules no longer define a ``__file__`` attribute. It's semantically
incorrect for frozen modules to set the attribute as they are not loaded from
any explicit location. If you must know that a module comes from frozen code
then you can see if the module's ``__spec__.location`` is set to ``'frozen'``,
check if the loader is a subclass of
:class:`importlib.machinery.FrozenImporter`,
or if Python 2 compatibility is necessary you can use :func:`imp.is_frozen`.
* :func:`py_compile.compile` now raises :exc:`FileExistsError` if the file path
it would write to is a symlink or a non-regular file. This is to act as a
warning that import will overwrite those files with a regular file regardless