On Sat, Sep 5, 2009 at 8:41 PM, Carl Banks<pavlovevide...@gmail.com> wrote:
> Out of curiosity, did you try this and are reporting that it resulted
> in an AttributeError, or did you merely deduce that it would raise
> AttributeError based on your knowledge of Python's inheritance?
>
> I ask this rhetorically. I know that you didn't try it (or that you
> tried it and made a mistake) because if you had tried it (and not made
> a mistake) you would have seen that it works exactly as you want it
> to.
>
>
> Carl Banks
> --
> http://mail.python.org/mailman/listinfo/python-list
>
This code causes an error:
#!/usr/bin/python
def main():
foox = FooX()
fooy = FooY()
fooz = FooZ()
#foox.method_x("I", "AM", "X")
print
fooy.method_x("ESTOY", "Y", "!")
print
fooz.method_x(100, 200, 300)
class MyMixin(object):
def method_x(self, a, b, c):
super(MyMixin, self).method_x(a, b, c)
print "MyMixin.method_x(%s, %s, %s, %s)" % (repr(self),
repr(a), repr(b), repr(c))
class BaseA(object):
def method_x(self, a, b, c):
super(BaseA, self).method_x(a, b, c)
print "BaseA.method_x(%s, %s, %s, %s)" % (repr(self), repr(a),
repr(b), repr(c))
class BaseB(object):
pass
class BaseC(object):
def method_x(self, a, b, c):
super(BaseC, self).method_x(a, b, c)
print "BaseC.method_x(%s, %s, %s, %s)" % (repr(self), repr(a),
repr(b), repr(c))
class FooX(BaseA, MyMixin):
def method_x(self, a, b, c):
super(FooX, self).method_x(a, b, c)
print "FooX.method_x(%s, %s, %s, %s)" % (repr(self), repr(a),
repr(b), repr(c))
class FooY(BaseB, MyMixin):
pass
class FooZ(BaseC, MyMixin):
def method_x(self, a, b, c):
super(FooZ, self).method_x(a, b, c)
print "FooZ.method_x(%s, %s, %s, %s)" % (repr(self), repr(a),
repr(b), repr(c))
if __name__ == '__main__':
main()
Traceback (most recent call last):
File "foo.py", line 54, in <module>
main()
File "foo.py", line 10, in main
fooy.method_x("ESTOY", "Y", "!")
File "foo.py", line 18, in method_x
super(MyMixin, self).method_x(a, b, c)
AttributeError: 'super' object has no attribute 'method_x'
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