commit 4adcaf81513e57a2a4e278073a89efb1375af8df
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Aug 28 22:05:59 2019 -0700
committer Ned Deily <nad@python.org> Thu Aug 29 01:05:59 2019 -0400
tree 5d821132440bf02d482e501c234168185167fe22
parent e471a543a4f7c52a8d0081ec5142adab3416d8fb

bpo-34775: Return NotImplemented in PurePath division. (GH-9509) (GH-15172)

(cherry picked from commit 4c69be22df3852f17873a74d015528d9a8ae92d6)

Co-authored-by: aiudirog <aiudirog@gmail.com>

Lib/pathlib.py

diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index 6369c4b..6355ae8 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -907,10 +907,16 @@
         return self._make_child(args)
 
     def __truediv__(self, key):
-        return self._make_child((key,))
+        try:
+            return self._make_child((key,))
+        except TypeError:
+            return NotImplemented
 
     def __rtruediv__(self, key):
-        return self._from_parts([key] + self._parts)
+        try:
+            return self._from_parts([key] + self._parts)
+        except TypeError:
+            return NotImplemented
 
     @property
     def parent(self):