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

[ambv]

https://github.com/python/cpython/commit/a459a81530de700b3d3faeb827b22ed1c9985812
commit: a459a81530de700b3d3faeb827b22ed1c9985812
branch: main
author: Irit Katriel <1055913+iritkatriel at users.noreply.github.com>
committer: ambv <lukasz at langa.pl>
date: 2021-11-02T22:55:51+01:00
summary:

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

files:
A Misc/NEWS.d/next/Library/2021-10-08-19-24-48.bpo-45406.Qh_Mz4.rst
M Lib/inspect.py
M Lib/test/test_inspect.py

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 14a42fda56c65..dd891112570c6 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 7479eb326e6f5..d43486a219158 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -493,6 +493,15 @@ def test_getmodule(self):
         # 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")
diff --git a/Misc/NEWS.d/next/Library/2021-10-08-19-24-48.bpo-45406.Qh_Mz4.rst b/Misc/NEWS.d/next/Library/2021-10-08-19-24-48.bpo-45406.Qh_Mz4.rst
new file mode 100644
index 0000000000000..2c3a8165aeb49
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-10-08-19-24-48.bpo-45406.Qh_Mz4.rst
@@ -0,0 +1 @@
+Make :func:`inspect.getmodule` catch ``FileNotFoundError`` raised by  :'func:`inspect.getabsfile`, and return ``None`` to indicate that the module could not be determined.
\ No newline at end of file