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

[miss-islington]

https://github.com/python/cpython/commit/5f527caf15c52acc3f6e865721cdf781209f11ca
commit: 5f527caf15c52acc3f6e865721cdf781209f11ca
branch: 3.9
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2021-11-02T15:26:40-07:00
summary:

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

(cherry picked from commit a459a81530de700b3d3faeb827b22ed1c9985812)

Co-authored-by: Irit Katriel <1055913+iritkatriel at users.noreply.github.com>

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 64605c3cd3f6f..10b5d14eb37bf 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -736,7 +736,7 @@ 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 8a8844e912ad2..08aed248b9665 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -488,6 +488,15 @@ 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