About ‘self’
	>>> class AClass: ...     def amethod(self): ...          print ‘Hi’, self ... ... >>> a <__main__.A instance at 0x00A9B350> >>> a.amethod()       # implicit self Hi <__main__.A instance at 0x00A9B350> >>> Aclass.amethod(a) # explicit self Hi <__main__.A instance at 0x00A9B350>