diff options
Diffstat (limited to 'Lib/importlib')
| -rw-r--r-- | Lib/importlib/_bootstrap.py | 3 | ||||
| -rw-r--r-- | Lib/importlib/test/import_/test_packages.py | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py index e0f86fc1727..d81e9498ddc 100644 --- a/Lib/importlib/_bootstrap.py +++ b/Lib/importlib/_bootstrap.py @@ -927,6 +927,9 @@ def _find_and_load(name, import_): if parent: if parent not in sys.modules: import_(parent) + # Crazy side-effects! + if name in sys.modules: + return sys.modules[name] # Backwards-compatibility; be nicer to skip the dict lookup. parent_module = sys.modules[parent] try: diff --git a/Lib/importlib/test/import_/test_packages.py b/Lib/importlib/test/import_/test_packages.py index faadc32172b..9590d5f7f3b 100644 --- a/Lib/importlib/test/import_/test_packages.py +++ b/Lib/importlib/test/import_/test_packages.py @@ -27,6 +27,19 @@ class ParentModuleTests(unittest.TestCase): with self.assertRaises(ImportError): import_util.import_('sys.no_submodules_here') + def test_module_not_package_but_side_effects(self): + # If a module injects something into sys.modules as a side-effect, then + # pick up on that fact. + name = 'mod' + subname = name + '.b' + def module_injection(): + sys.modules[subname] = 'total bunk' + mock_modules = util.mock_modules('mod', + module_code={'mod': module_injection}) + with mock_modules as mock: + with util.import_state(meta_path=[mock]): + submodule = import_util.import_(subname) + def test_main(): from test.support import run_unittest |