In [80]: class MyClass001:
....: def selfDemo(self):
....: print 'My Demo'
....:
In [81]: p = MyClass001()
In [82]: p.selfDemo()
My Demo
In [83]:
In [83]: class MyClass002:
....: def selfDemo(self):
....: print self
....:
In [84]: p=MyClass002()
In [85]: p.selfDemo()
<__main__.MyClass002 instance at 0x7f308a0394d0>
In [86]: