#7909: the prefixes \\.\ and \\?\ indicate special Windows paths, do not try to manipulate them. See http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29.aspx for details.
diff --git a/Lib/test/test_ntpath.py b/Lib/test/test_ntpath.py
index 0fd81b6..86e3eda 100644
--- a/Lib/test/test_ntpath.py
+++ b/Lib/test/test_ntpath.py
@@ -174,6 +174,9 @@
tester("ntpath.normpath('C:////a/b')", r'C:\a\b')
tester("ntpath.normpath('//machine/share//a/b')", r'\\machine\share\a\b')
+ tester("ntpath.normpath('\\\\.\\NUL')", r'\\.\NUL')
+ tester("ntpath.normpath('\\\\?\\D:/XY\\Z')", r'\\?\D:/XY\Z')
+
def test_expandvars(self):
with support.EnvironmentVarGuard() as env:
env.clear()