bpo-45406: make inspect.getmodule() return None when getabsfile() raises FileNotFoundError (GH-28824)

2 files changed, 10 insertions, 1 deletions

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 14a42fd..dd89111 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -858,7 +858,7 @@ def getmodule(object, _filename=None):
     # Try the cache again with the absolute file name
     try:
         file = getabsfile(object, _filename)
-    except TypeError:
+    except (TypeError, FileNotFoundError):
         return None
     if file in modulesbyfile:
         return sys.modules.get(modulesbyfile[file])
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index 7479eb3..d43486a 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -493,6 +493,15 @@ class TestRetrievingSourceCode(GetSourceBase):
         # Check filename override
         self.assertEqual(inspect.getmodule(None, modfile), mod)
 
+    def test_getmodule_file_not_found(self):
+        # See bpo-45406
+        def _getabsfile(obj, _filename):
+            raise FileNotFoundError('bad file')
+        with unittest.mock.patch('inspect.getabsfile', _getabsfile):
+            f = inspect.currentframe()
+            self.assertIsNone(inspect.getmodule(f))
+            inspect.getouterframes(f)  # smoke test
+
     def test_getframeinfo_get_first_line(self):
         frame_info = inspect.getframeinfo(self.fodderModule.fr, 50)
         self.assertEqual(frame_info.code_context[0], "# line 1\n")