diff -r 5f773540e2ef Lib/traceback.py
--- a/Lib/traceback.py	Fri Oct 10 13:04:08 2014 +0200
+++ b/Lib/traceback.py	Fri Oct 10 13:50:17 2014 +0200
@@ -61,8 +61,13 @@ def _extract_tb_or_stack_iter(curr, limi
         filename = co.co_filename
         name = co.co_name
 
-        linecache.checkcache(filename)
-        line = linecache.getline(filename, lineno, f.f_globals)
+        try:
+            linecache.checkcache(filename)
+            line = linecache.getline(filename, lineno, f.f_globals)
+        except Exception:
+            # Issue #22599: During Python finalization, linecache fails because
+            # the builtin open() function was already deleted.
+            line = None
 
         if line:
             line = line.strip()