t.p.r.Summer(Accessor) : class documentation

Extend from this class to get the capability to maintain 'related sums'. Have a tuple in your class like the following:

   sums=(('amount','credit','credit_total'),
         ('amount','debit','debit_total'))

and the 'credit_total' member of the 'credit' member of self will always be incremented when the 'amount' member of self is incremented, similiarly for the debit versions.

Method

reallySet

This method does the work.

Inherited from Accessor:

Method	__setattr__	Undocumented
Method	__getattr__	Undocumented
Method	__delattr__	Undocumented
Method	reallyDel	*actually* del self.k without incurring side-effects. This is a hook to be overridden by subclasses.