# Without arguments, return a dictionary corresponding to the current local symbol table.
# With a module, class or class instance object as argument
# (or anything else that has a __dict__ attribute),
# returns a dictionary corresponding to the object's symbol table.
# Reference from Python doc: http://docs.python.org/library/functions.html
class C(object):
pass
c = C()
c.foo = 100
c.bar = 'Python'
print c.__dict__
print vars(c)