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Issue #27419: Standard __import__() no longer look up "__import__" in globals 

or builtins for importing submodules or "from import".  Fixed a crash if
raise a warning about unabling to resolve package from __spec__ or
__package__.
This commit is contained in:
Serhiy Storchaka 2016-07-17 12:51:34 +03:00
parent 3410c01d83 b3b65e618c
commit 7905f99a27
2 changed files with 9 additions and 8 deletions
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5
Misc/NEWS
View File

@ -10,6 +10,11 @@ What's New in Python 3.6.0 alpha 4
Core and Builtins
-----------------
- Issue #27419: Standard __import__() no longer look up "__import__" in globals
or builtins for importing submodules or "from import". Fixed a crash if
raise a warning about unabling to resolve package from __spec__ or
__package__.
- Issue #27083: Respect the PYTHONCASEOK environment variable under Windows.
- Issue #27514: Make having too many statically nested blocks a SyntaxError

12
Python/import.c
View File

@ -1452,6 +1452,7 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *given_globals,
}
}
else {
package = NULL;
if (PyErr_WarnEx(PyExc_ImportWarning,
"can't resolve package from __spec__ or __package__, "
"falling back on __name__ and __path__", 1) < 0) {
@ -1556,15 +1557,10 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *given_globals,
_PyImport_AcquireLock();
#endif
/* From this point forward, goto error_with_unlock! */
if (PyDict_Check(globals)) {
builtins_import = _PyDict_GetItemId(globals, &PyId___import__);
}
builtins_import = _PyDict_GetItemId(interp->builtins_copy, &PyId___import__);
if (builtins_import == NULL) {
builtins_import = _PyDict_GetItemId(interp->builtins, &PyId___import__);
if (builtins_import == NULL) {
PyErr_SetString(PyExc_ImportError, "__import__ not found");
goto error_with_unlock;
}
PyErr_SetString(PyExc_ImportError, "__import__ not found");
goto error_with_unlock;
}
Py_INCREF(builtins_import);