[Tutor] Inheritance

[arkamir at softhome.net]

I'm just starting to learn classes and have run into trouble understanding 
how classes inherit. 

One question is if class A inherits from class B and C. And then B inherits 
from M and N. And C inherits from F and G, while F and N inherit from class 
z which inherits from object, what is the name resolution. 

 

                       Z
                 M  N    F  G
                  B       C
                      A 

 

Also can someone explain to me what super() does, i need something pretty 
basic. 

Next using the same classes as above, if z.__init__: connects to a database, 
how can I make sure that it is only called once, while initializing all the 
classes. Would the connection have to be just within the body, and how would 
that work?? 


class test:
  def __init__():
      self.x = 'hello'
  print self.x 


Tha above code raises an error. What can I do to make it work??