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bpo-28411: Isolate PyInterpreterState.modules #3575

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Merged
merged 18 commits into from
Sep 14, 2017
Merged

bpo-28411: Isolate PyInterpreterState.modules #3575

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2ff5d7c
Add _PyImport_GetModuleDict().
ericsnowcurrently Oct 7, 2016
79a8461
Import the sys module before any other imports.
ericsnowcurrently Oct 10, 2016
6f96d3a
Pass the modules dict to _PyImport_FindBuiltin().
ericsnowcurrently Oct 10, 2016
ad8c082
Replace usage of interp->modules with PyImport_GetModuleDict().
ericsnowcurrently Oct 7, 2016
12f55d3
Add _PyImport_EnsureInitialized().
ericsnowcurrently Oct 10, 2016
eb2d6f9
Add _PyModule_Create2().
ericsnowcurrently Oct 10, 2016
6a04c1c
Use _PyModule_Create2() for key builtin modules.
ericsnowcurrently Oct 10, 2016
26bdb7e
Check sys.modules in _PyImport_EnsureInitialized().
ericsnowcurrently Oct 10, 2016
eac7403
Pass the modules dict to _PyImport_FixupBuiltin().
ericsnowcurrently Oct 10, 2016
1166c57
Pass PyInterpreterState to _PyImport_GetModuleDict().
ericsnowcurrently Oct 11, 2016
da3ce95
Drop _PyImport_GetModuleDict().
ericsnowcurrently Oct 11, 2016
ef17b81
_PyModule_Create2 -> _PyModule_CreateInitialized
ericsnowcurrently May 17, 2017
a17d5ff
_PyImport_EnsureInitialized() -> _PyImport_IsInitialized()
ericsnowcurrently May 18, 2017
acc270b
Add a Misc/NEWS entry.
ericsnowcurrently Sep 4, 2017
bc6a0f1
Fix style (bracket placement).
ericsnowcurrently Sep 4, 2017
c7a2524
Drop _PyImport_FixupExtensionObjectEx().
ericsnowcurrently Sep 4, 2017
aceaacd
Fix the NEWS entry.
ericsnowcurrently Sep 14, 2017
5b87111
Drop commented-out code.
ericsnowcurrently Sep 14, 2017
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Add _PyImport_EnsureInitialized().
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@ericsnowcurrently
ericsnowcurrently committed Sep 14, 2017
commit 12f55d30be0a66760cb0806e06093e08f43c60da
1 change: 1 addition & 0 deletions Include/import.h
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Expand Up @@ -40,6 +40,7 @@ PyAPI_FUNC(PyObject *) PyImport_ExecCodeModuleObject(
PyAPI_FUNC(PyObject *) PyImport_GetModuleDict(void);
#ifndef Py_LIMITED_API
PyAPI_FUNC(PyObject *) _PyImport_GetModuleDict(PyThreadState *tstate);
PyAPI_FUNC(void) _PyImport_EnsureInitialized(PyInterpreterState *interp);
#endif
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
PyAPI_FUNC(PyObject *) PyImport_AddModuleObject(
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15 changes: 15 additions & 0 deletions Python/import.c
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Expand Up @@ -314,6 +314,21 @@ PyImport_GetModuleDict(void)
return _PyImport_GetModuleDict(PyThreadState_GET());
}

/* In some corner cases it is important to be sure that the import
machinery has been initialized (or not cleaned up yet). For
example, see issue #4236 and PyModule_Create2(). */

void
_PyImport_EnsureInitialized(PyInterpreterState *interp)
{
if (interp->modules == NULL)
goto notinitialized;
return;

notinitialized:
Py_FatalError("Python import machinery not initialized");
}


/* List of names to clear in sys */
static const char * const sys_deletes[] = {
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