update public distribution

based on internal repository c9a2ac8 2019-01-03 16:04:57 +0100
tagged rev-master-2.0.0

pmsco/__main__.py

@@ -8,10 +8,17 @@ python pmsco [pmsco-arguments]
 @endverbatim
 """
 
-import pmsco
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
 import sys
+import os.path
+
+file_dir = os.path.dirname(__file__) or '.'
+root_dir = os.path.join(file_dir, '..')
+root_dir = os.path.abspath(root_dir)
+sys.path[0] = root_dir
 
 if __name__ == '__main__':
-    args, unknown_args = pmsco.parse_cli()
-    pmsco.main_pmsco(args, unknown_args)
-    sys.exit(0)
+    import pmsco.pmsco
+    pmsco.pmsco.main()