Re: Multiple hierarchie and method overloading

2006-04-25 Thread bruno at modulix 
Philippe Martin wrote:
 Hi,
 
 
 
 
 I have something like this:
 
 Class A:
 def A_Func(self, p_param):
  .
 Class B:
 def A_Func(self):
  .
 
 Class C (A,B):
 A.__init__(self)

If that's really your code, you should have an exception right here.
Else, please post real code.


 B.__init__(self)


 .
 
 self.A_Func() #HERE I GET AN EXCEPTION ... takes at least 2 
 arguments (1
 given).


 
 I renamed A_Func(self) to fix that ... but is there a cleaner way around ?

Perhaps should you read these texts:

http://diveintopython.org/object_oriented_framework/defining_classes.html
http://www.freenetpages.co.uk/hp/alan.gauld/tutclass.htm
http://docs.python.org/tut/node11.html


-- 
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
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Re: Multiple hierarchie and method overloading

2006-04-25 Thread bruno at modulix 
Philippe Martin wrote:
 Hi,
 
 I have something like this:
 
 Class A:
 def A_Func(self, p_param):
  .
 Class B:
 def A_Func(self):
  .
 
 Class C (A,B):
 A.__init__(self)
 B.__init__(self)
 
 .
 
 self.A_Func() #HERE I GET AN EXCEPTION ... takes at least 2 
 arguments (1
 given).

Ho, yes, also: A.A_Func() really takes 2 arguments (self, and p_param).
When called from an instance of A, the first argument (ie: self) will be
automagically feed with the instance itself - but you still have to pass
the second one.

 
 I renamed A_Func(self) to fix that ... but is there a cleaner way around ?

Yes : passing the second argument.

-- 
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
-- 
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Re: Multiple hierarchie and method overloading

2006-04-25 Thread Philippe Martin 
Thanks,

I'll try that.

Philippe


Ben Cartwright wrote:

 Philippe Martin wrote:
 I have something like this:

 Class A:
 def A_Func(self, p_param):
  .
 Class B:
 def A_Func(self):
  .

 Class C (A,B):
 A.__init__(self)
 B.__init__(self)

 .

 self.A_Func() #HERE I GET AN EXCEPTION ... takes at least 2
 arguments (1
 given).


 I renamed A_Func(self) to fix that ... but is there a cleaner way around
 ?
 
 When using multiple inheritence, the order of the base classes matters!
  E.g.:
 
   class A(object):
   def f(self):
   print 'in A.f()'
   class B(object):
   def f(self):
   print 'in B.f()'
   class X(A, B):
   pass
   class Y(B, A):
   pass
 
x = X()
x.f()
   in A.f()
y = Y()
y.f()
   in B.f()
 
 If you want to call B.f() instead of A.f() for an X instance, you can
 either rename B.f() like you've done, or do this:
 
B.f(x)
   in B.f()
 
 --Ben

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Multiple hierarchie and method overloading

2006-04-24 Thread Philippe Martin 
Hi,




I have something like this:

Class A:
def A_Func(self, p_param):
 .
Class B:
def A_Func(self):
 .

Class C (A,B):
A.__init__(self)
B.__init__(self)

.

self.A_Func() #HERE I GET AN EXCEPTION ... takes at least 2 arguments 
(1
given).


I renamed A_Func(self) to fix that ... but is there a cleaner way around ?

Regards,

Philippe





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Re: Multiple hierarchie and method overloading

2006-04-24 Thread Ben Cartwright 
Philippe Martin wrote:
 I have something like this:

 Class A:
 def A_Func(self, p_param):
  .
 Class B:
 def A_Func(self):
  .

 Class C (A,B):
 A.__init__(self)
 B.__init__(self)

 .

 self.A_Func() #HERE I GET AN EXCEPTION ... takes at least 2 
 arguments (1
 given).


 I renamed A_Func(self) to fix that ... but is there a cleaner way around ?

When using multiple inheritence, the order of the base classes matters!
 E.g.:

  class A(object):
  def f(self):
  print 'in A.f()'
  class B(object):
  def f(self):
  print 'in B.f()'
  class X(A, B):
  pass
  class Y(B, A):
  pass

   x = X()
   x.f()
  in A.f()
   y = Y()
   y.f()
  in B.f()

If you want to call B.f() instead of A.f() for an X instance, you can
either rename B.f() like you've done, or do this:

   B.f(x)
  in B.f()

--Ben

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