mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

gh-98627: Add an Optional Check for Extension Module Subinterpreter Compatibility (gh-99040)

Browse source 
Enforcing (optionally) the restriction set by PEP 489 makes sense. Furthermore, this sets the stage for a potential restriction related to a per-interpreter GIL.

This change includes the following:

* add tests for extension module subinterpreter compatibility
* add _PyInterpreterConfig.check_multi_interp_extensions
* add Py_RTFLAGS_MULTI_INTERP_EXTENSIONS
* add _PyImport_CheckSubinterpIncompatibleExtensionAllowed()
* fail iff the module does not implement multi-phase init and the current interpreter is configured to check

https://github.com/python/cpython/issues/98627
This commit is contained in:
Eric Snow 2023-02-15 18:16:00 -07:00 • committed by GitHub
parent 3dea4ba6c1
commit 89ac665891
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
15 changed files with 557 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Lib/test/support/import_helper.py
View file

@ -105,6 +105,24 @@ def frozen_modules(enabled=True):
_imp._override_frozen_modules_for_tests(0)
@contextlib.contextmanager
def multi_interp_extensions_check(enabled=True):
"""Force legacy modules to be allowed in subinterpreters (or not).
("legacy" == single-phase init)
This only applies to modules that haven't been imported yet.
It overrides the PyInterpreterConfig.check_multi_interp_extensions
setting (see support.run_in_subinterp_with_config() and
_xxsubinterpreters.create()).
"""
old = _imp._override_multi_interp_extensions_check(1 if enabled else -1)
try:
yield
finally:
_imp._override_multi_interp_extensions_check(old)
def import_fresh_module(name, fresh=(), blocked=(), *,
deprecated=False,
usefrozen=False,