urwid isn't a submodule any more

urwid/compat.py

@@ -0,0 +1,48 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# Urwid python compatibility definitions
+#    Copyright (C) 2011  Ian Ward
+#
+#    This library is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU Lesser General Public
+#    License as published by the Free Software Foundation; either
+#    version 2.1 of the License, or (at your option) any later version.
+#
+#    This library is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#    Lesser General Public License for more details.
+#
+#    You should have received a copy of the GNU Lesser General Public
+#    License along with this library; if not, write to the Free Software
+#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Urwid web site: http://excess.org/urwid/
+
+import sys
+
+try: # python 2.4 and 2.5 compat
+    bytes = bytes
+except NameError:
+    bytes = str
+
+PYTHON3 = sys.version_info > (3, 0)
+
+# for iterating over byte strings:
+# ord2 calls ord in python2 only
+# chr2 converts an ordinal value to a length-1 byte string
+# B returns a byte string in all supported python versions
+# bytes3 creates a byte string from a list of ordinal values
+if PYTHON3:
+    ord2 = lambda x: x
+    chr2 = lambda x: bytes([x])
+    B = lambda x: x.encode('iso8859-1')
+    bytes3 = bytes
+else:
+    ord2 = ord
+    chr2 = chr
+    B = lambda x: x
+    bytes3 = lambda x: bytes().join([chr(c) for c in x])
+
+