[Tutor] problem with a sub-class
alan.gauld at yahoo.co.uk
Thu Nov 30 17:08:30 EST 2017
On 30/11/17 15:37, Shall, Sydney wrote:
> My problem is with constructing a sub-class.
> My sub-class is constructed as follows:
> import Population_ProductivityV24 as POCWP
Note that POCWP is an alias for the *module* Population_ProductivityV24.
It is not a class.
> line 27 : class SimulateCycleZero(POCWP):
Here you define a class that subclasses your imported module.
Frankly I'm surprised that you don't get an error there
> line 28 : def __init__(self, dirname_p):
But this is now an init for a subclass of module.
> The error message is as follows:
> line 27, in <module>
> class SimulateCycleZero(POCWP):
> TypeError: module.__init__() takes at most 2 arguments (3 given)
So I'm guessing the use of a module to subclass
has confused things and I confess I'm not clear on
exactly what is going on and why you get this message.
But I'm pretty sure you don;t want to subclass your
imported module and thats the mistake.
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