Scheme style and Python style [was: Re: Typed Python?]

[François Pinard]

[Christopher T King]
> [François Pinard]

> > Suddenly backtracking out of a complex involvement for restarting
> > in a new direction, for the above project at least, requires a lot
> > of state resumption, and doing this cleanly in Python implies a
> > rather strict and burdening discipline about where and how the state
> > information is kept.  While tractable, this is not as comfortable as
> > I would have liked it...

> It may be possible to do what you want to do using only generators.

> continuation=dostuff()
> try:
>     value=continuation.next()
> except StopIteration:
>     <store continuation away for future use>
> else:
>     <function completed, carry on>

If the generator gets exhausted, what would be the purpose of saving it?

I would presume chained generators might ease control of the flow, at
least to a certain extent, but would not help so much for complex state
resumption, especially when state is shared between parts of the program.

> Dunno if this helps or not....

Thinking always help!  Thanks for sharing your thoughts.

-- 
François Pinard   http://www.iro.umontreal.ca/~pinard