Issue #27895:  Spelling fixes (Contributed by Ville Skyttä).
diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index 27a1d38..7b1ef6a 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -1,4 +1,4 @@
-"""Regresssion tests for urllib"""
+"""Regression tests for urllib"""
 
 import collections
 import urllib