ENH: adding backwards compatibility layer.

setup.py

@@ -18,5 +18,13 @@
 
 setup(name='traity',
       version='0.0.1',
-      packages=find_packages())
+      description='Extended Python Porperties',
+      packages=find_packages(),
+      author='Sean Ross-Ross',
+      author_email='srossross@enthought.com',
+      url='http://srossross.github.com/traity',
+      classifiers=['Programming Language :: Python :: 2',
+                   'Programming Language :: Python :: 3'],
+      license='BSD',
+      )
 

traity/compat/has_traits.py

@@ -0,0 +1,21 @@
+'''
+Created on Oct 8, 2012
+
+@author: sean
+'''
+from traity.tools.initializable_property import init_properties
+from traity.events import init_events
+
+
+class HasTraitsMeta(type):
+    def __new__(cls, name, bases, dct):
+        Klass = type.__new__(cls, name, bases, dct)
+        init_properties(Klass)
+        return Klass
+
+class HasTraits(object):
+    __metaclass__ = HasTraitsMeta
+
+    def __init__(self, **kwargs):
+        self.__dict__.update(kwargs)
+        init_events(self)

traity/compat/trait_types.py

@@ -0,0 +1,19 @@
+'''
+Created on Oct 8, 2012
+
+@author: sean
+'''
+from traity.traits import trait
+
+class Int(trait):
+    def __init__(self, default=0):
+        trait.__init__(self, type=int, fdefault=lambda self:default)
+
+    # Special method to allow trait to be called with or without parens '()'
+    # Method __init_property__ is invoked when init_properties is called
+
+    @classmethod
+    def __init_property__(cls, owner, key):
+        int_trait = cls()
+        setattr(owner, key, int_trait)
+        trait.__init_property__(int_trait, owner, key)