diff -r 0842c5411ed6 Lib/test/test_robotparser.py
--- a/Lib/test/test_robotparser.py	Mon Mar 18 09:59:15 2013 +0100
+++ b/Lib/test/test_robotparser.py	Tue Mar 19 00:07:22 2013 -0700
@@ -234,6 +234,17 @@
 
 RobotTest(15, doc, good, bad)
 
+# 16.
+doc = """
+User-agent: *
+Allow: /some/path?
+Disallow: /another/path?
+"""
+
+good = ['/some/path?']
+bad = ['/another/path?']
+
+RobotTest(16, doc, good, bad)
 
 class NetworkTestCase(unittest.TestCase):
 
diff -r 0842c5411ed6 Lib/urllib/robotparser.py
--- a/Lib/urllib/robotparser.py	Mon Mar 18 09:59:15 2013 +0100
+++ b/Lib/urllib/robotparser.py	Tue Mar 19 00:07:22 2013 -0700
@@ -157,6 +157,7 @@
         if path == '' and not allowance:
             # an empty value means allow all
             allowance = True
+        path = urllib.parse.urlunparse(urllib.parse.urlparse(path))
         self.path = urllib.parse.quote(path)
         self.allowance = allowance