added a line to move ``basestring`` into the global namespace of compat.py, making it importable

climin/compat.py

@@ -2,7 +2,10 @@ import sys
 
 if sys.version_info[0] == 2:
     range = xrange
+    # The following line looks weird, yes. However, if it is not added
+    # ``basestring`` will not be part of the namespace of this module, and
+    # henceforth not be importable.
+    basestring = basestring
 else:
     from builtins import range
-
     basestring = str