From e631a9ca05ab9394107f7e7447c45ed93c133aa9 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Sat, 19 Sep 2020 17:05:08 +0200
Subject: python traceback lexer: fix custom exceptions without message

fixes #1548
---
 pygments/lexers/python.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'pygments')

diff --git a/pygments/lexers/python.py b/pygments/lexers/python.py
index 10157999..051371f9 100644
--- a/pygments/lexers/python.py
+++ b/pygments/lexers/python.py
@@ -726,7 +726,7 @@ class PythonTracebackLexer(RegexLexer):
              bygroups(Text, Comment, Text)),  # for doctests...
             (r'^([^:]+)(: )(.+)(\n)',
              bygroups(Generic.Error, Text, Name, Text), '#pop'),
-            (r'^([a-zA-Z_]\w*)(:?\n)',
+            (r'^([a-zA-Z_][\w.]*)(:?\n)',
              bygroups(Generic.Error, Text), '#pop')
         ],
     }
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