I come from a C++ background and am learning some of the details of Python's OO capability and now have some questions. Given:
#!/bin/env python class A(object): _x = 10 def __init__(self): self.x = 20 def square(self): return self.x * self.x print 'A.x = %d' % A._x a = A() print 'a.x = %d' % a.x print 'a.square() = %d' %a.square() I get the output: A.x = 10 a.x = 20 a.square() = 400 Here are my questions: 1) What are the benefits of using a member variable without the 'self' qualifier? (I think this is because you can use _x without an instance of A().) 2) Is there a preferred coding style (_x vs self.x)? 3) Should private data be written as self._x instead of self.x? Thanks. Sarir -- http://mail.python.org/mailman/listinfo/python-list
