Index: trunk/Xlib/support/unix_connect.py
===================================================================
--- trunk.orig/Xlib/support/unix_connect.py	2009-11-05 06:06:09.000000000 -0500
+++ trunk/Xlib/support/unix_connect.py	2009-11-05 06:06:23.000000000 -0500
@@ -161,6 +161,14 @@
     except os.error:
         pass
 
+    if not auth_data and host=='localhost':
+	# 127.0.0.1 counts as FamilyLocal, not FamilyInternet
+	# See Xtransutil.c:ConvertAddress.
+	# There might be more ways to spell 127.0.0.1 but
+	# 'localhost', yet this code fixes a the case of
+	# OpenSSH tunneling X.
+	return get_auth('unix:%d' % dno, 'unix', dno)
+
     return auth_name, auth_data
 
 get_auth = new_get_auth
commit 95e9996cf86b08fa5af12190b71dd9067cc85270
Author: Orion Poplawski <orion@cora.nwra.com>
Date:   Fri Sep 30 16:05:28 2016 -0600

    Replace tabs with spaces

diff --git a/Xlib/support/unix_connect.py b/Xlib/support/unix_connect.py
index 677c36e..c1a2201 100644
--- a/Xlib/support/unix_connect.py
+++ b/Xlib/support/unix_connect.py
@@ -168,12 +168,12 @@ def old_get_auth(sock, dname, host, dno):
         pass
 
     if not auth_data and host=='localhost':
-	# 127.0.0.1 counts as FamilyLocal, not FamilyInternet
-	# See Xtransutil.c:ConvertAddress.
-	# There might be more ways to spell 127.0.0.1 but
-	# 'localhost', yet this code fixes a the case of
-	# OpenSSH tunneling X.
-	return get_auth('unix:%d' % dno, 'unix', dno)
+        # 127.0.0.1 counts as FamilyLocal, not FamilyInternet
+        # See Xtransutil.c:ConvertAddress.
+        # There might be more ways to spell 127.0.0.1 but
+        # 'localhost', yet this code fixes a the case of
+        # OpenSSH tunneling X.
+        return get_auth('unix:%d' % dno, 'unix', dno)
 
     return auth_name, auth_data