refactor py/lib into python-scwrypts subproject

py/hello-world.py

@@ -1,27 +1,21 @@
 #!/usr/bin/env python
-from py.lib.scwrypts import execute
-
-from py.lib.scwrypts.exceptions import ImportedExecutableError
-
-if __name__ != '__main__':
-    raise ImportedExecutableError()
-
+from scwrypts import execute
 #####################################################################
 
+description = 'a simple "Hello, World!" program'
+parse_args = [
+        ( ['-m', '--message'], {
+            'dest'     : 'message',
+            'default'  : 'HELLO WORLD',
+            'help'     : 'message to print',
+            'required' : False,
+            }),
+        ]
 
 def main(args, stream):
     stream.writeline(args.message)
 
 
 #####################################################################
-execute(main,
-        description = 'a simple "Hello, World!" program',
-        parse_args = [
-            ( ['-m', '--message'], {
-                'dest'     : 'message',
-                'default'  : 'HELLO WORLD',
-                'help'     : 'message to print',
-                'required' : False,
-                }),
-            ],
-        )
+if __name__ == '__main__':
+    execute(main, description, parse_args)