class Person(object):
   def __init__(self, name, gender, birth, **kw):
       self.name = name
       self.gender = gender
       self.birth = birth
       for k, v in kw.iteritems():
           self.k=v
xiaoming = Person('Xiao Ming', 'Male', '1990-1-1', job='Student')
print xiaoming.name
print xiaoming.job