From aabebde358a9a9630e7afb03b4bc4bd217774ef3 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Thu, 16 Jan 2014 06:53:54 +0100
Subject: Closes #20235: Report file and line on unexpected exceptions in
 Argument Clinic.

---
 Tools/clinic/clinic.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Tools/clinic/clinic.py b/Tools/clinic/clinic.py
index ed59f05..23e0b93 100755
--- a/Tools/clinic/clinic.py
+++ b/Tools/clinic/clinic.py
@@ -21,6 +21,7 @@ import shlex
 import sys
 import tempfile
 import textwrap
+import traceback
 
 # TODO:
 #
@@ -1082,7 +1083,11 @@ class Clinic:
                     assert dsl_name in parsers, "No parser to handle {!r} block.".format(dsl_name)
                     self.parsers[dsl_name] = parsers[dsl_name](self)
                 parser = self.parsers[dsl_name]
-                parser.parse(block)
+                try:
+                    parser.parse(block)
+                except Exception:
+                    fail('Exception raised during parsing:\n' +
+                         traceback.format_exc().rstrip())
             printer.print_block(block)
         return printer.f.getvalue()
 
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