[issue13734] Add a generic directory walker method to avoid symlink attacks

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

One other thing: is it deliberate to silence errors in the following snippet?

+        try:
+            names = fdlistdir(topfd)
+        except error as err:
+            if onerror is not None:
+                onerror(err)
+            return

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13734>
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