Use nuitka for compiling, reorganize py files

source/propertize/convert_string.py

@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+import re
+
+
+first_cap_re = re.compile('([^.])([A-Z][a-z]+)')
+all_cap_re = re.compile('([a-z0-9])([A-Z])')
+
+def snake_case(s):
+    """
+    Convert a CamelCase string to snake_case
+    """
+    
+    s1 = first_cap_re.sub(r'\1_\2', s)
+    return all_cap_re.sub(r'\1_\2', s1).lower()