Re: Recursive generators and backtracking search

>>                    for pos in qsearch( pos ):
>>                         yield pos

Um - do you really want to reuse the variable pos here? Yeah, it
works, but this strikes me as very confusing. I'm not sure that it
might not be implementation dependent.

Certainly not. pos is - and that is standard python semantics - just a name. Passing the bound _value_ of pos to some function and rebinding the the name afterwards is perfectly legal and will work in all implementations.

The question of style though remains. I wouldn't do that either, but what I frequntly do is something like this:


pos = "10"
pos = int(pos)

Thus when I'm sort of transforming a value, I think it's ok, as the name still refers to the same conceptual entity.

Regards,

Diez
.