Move Windows libs to libs/windows

libs/win/jaraco/classes/ancestry.py

@@ -0,0 +1,75 @@
+"""
+Routines for obtaining the class names
+of an object and its parent classes.
+"""
+
+from __future__ import unicode_literals
+
+
+def all_bases(c):
+	"""
+	return a tuple of all base classes the class c has as a parent.
+	>>> object in all_bases(list)
+	True
+	"""
+	return c.mro()[1:]
+
+
+def all_classes(c):
+	"""
+	return a tuple of all classes to which c belongs
+	>>> list in all_classes(list)
+	True
+	"""
+	return c.mro()
+
+# borrowed from
+# http://code.activestate.com/recipes/576949-find-all-subclasses-of-a-given-class/
+
+
+def iter_subclasses(cls, _seen=None):
+	"""
+	Generator over all subclasses of a given class, in depth-first order.
+
+	>>> bool in list(iter_subclasses(int))
+	True
+	>>> class A(object): pass
+	>>> class B(A): pass
+	>>> class C(A): pass
+	>>> class D(B,C): pass
+	>>> class E(D): pass
+	>>>
+	>>> for cls in iter_subclasses(A):
+	...		print(cls.__name__)
+	B
+	D
+	E
+	C
+	>>> # get ALL (new-style) classes currently defined
+	>>> res = [cls.__name__ for cls in iter_subclasses(object)]
+	>>> 'type' in res
+	True
+	>>> 'tuple' in res
+	True
+	>>> len(res) > 100
+	True
+	"""
+
+	if not isinstance(cls, type):
+		raise TypeError(
+			'iter_subclasses must be called with '
+			'new-style classes, not %.100r' % cls
+		)
+	if _seen is None:
+		_seen = set()
+	try:
+		subs = cls.__subclasses__()
+	except TypeError:  # fails only when cls is type
+		subs = cls.__subclasses__(cls)
+	for sub in subs:
+		if sub in _seen:
+			continue
+		_seen.add(sub)
+		yield sub
+		for sub in iter_subclasses(sub, _seen):
+			yield sub