[PEAK] I don't understand uponAssembly()

[John Landahl]

Doug Quale wrote:
> I want to run some initialization when the component instance is
> created.  (The components are controllers for GUI views.)  Normally
> that would be done in __init__(), but peak largely removes the need to
> code __init__, and for that I'm grateful.

I would say that rather than largely removing the need for __init__, 
PEAK removes it completely.  There's never a reason to write an __init__ 
method for a PEAK component as far as I know.

> class k(binding.Component):
>     def _my_init(self):
>         ...
>     _my_init = binding.Make(_my_init, uponAssembly=True)

If you look around the PEAK codebase you'll see that Phillip typically 
names these sort of "startup" routines "__onStart".  Whatever you call 
them, you may want to consider using a double underscore prefix for 
these so they'll be harder to call by accident.

- John