Alan G wrote:
>>> Now I want that another class, call it B, inherits all
>>> behaviours/attributes except for the attribute blank, that now I want
>>> to be False.
> 
> 
>> class B(A):
>>  def __init__(self, blank=True, editable=True, name='foo'):
>>    A.__init__(self, blank, editable, name)
> 
> 
> except that instead of passimng blank to A.__init__ you should pass False.
> That way blank will always be False as required! ie:
> 
>     A.__init__(self, False, editable, name)

It's not really clear what the OP wants - whether blank should always be False, 
or have a default value of False. Actually the example shows blank having a 
default value of True for B's which makes more sense than the text since the 
default value of blank for A's is False.

Anyway, if you want to change the default value do it the way I showed 
originally (above); if you want blank to always be False (or True) you should 
remove the parameter from the definition of B.__init__() like this:

class B(A):
 def __init__(self, editable=True, name='foo'):
   A.__init__(self, True, editable, name)

Kent

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