> ChrisA Yes, that works. Thank you all for your help. -->
class A: def __init__(self): self.number = 1 def A_biginc(self): self.number += 107 A.biginc = A_biginc class B(A): def __init__(self): super().__init__() print("making a B") def B_biginc(self): super(B,self).biginc() # super() trips up super(B,self).biginc() return self.number B.biginc = B_biginc def f_ut_oh(): a = A() flag1 = a.number == 1 a.biginc() flag2 = a.number == 108 b = B() flag3 = b.number == 1 b.biginc() flag4 = b.number == 215 if flag1 and flag2 and flag3 and flag4 : print("all good!") else: print("hmm something went wrong..") print("loaded try_adding_method.py") ----> Python 3.6.6 (default, Jun 27 2018, 14:44:17) [GCC 8.1.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> python.el: native completion setup loaded >>> loaded try_adding_method.py >>> f_ut_oh() making a B all good! >>> -- https://mail.python.org/mailman/listinfo/python-list