Re: [myhdl-list] difficulty using itertools with MyHDL

[George P. <ge...@ga...>]

On Fri, October 20, 2006 10:51 am, Jan Decaluwe wrote:
> George Pantazopoulos wrote:
>
>> Sorry for the confusion earlier. Does this help you understand what I
>> want to accomplish? This is already working for me, except that I have
>> to redefine izip() and ichain() myself. Perhaps you know of a better w=
ay
>> to do this?
>
> George:
>
> Yes, I understand now. I think this qualifies as Truly Advanced Usage :=
-)

Thanks ;-) A real need arose as I was unit testing my ring buffer, and
this was my creative answer to it. Good stuff happens when you're having
fun (er, well not always) ;-)

>
> I understand why you want to use itertools - not for performance,
> but as a clear and concise way to manipulate iterators.
>
Exactly!

> So at this point I would look for a workaround and convert
> iterator objects to the "officially" supported types
> (for behavior or structure) as desired. The advantage is
> of course that no change to MyHDL would be required.
>
> A workaround for your case could be the following. Just use
> itertools to set up your iterator as desired. Then convert
> it to a generator using a one-liner generator expression, e.g.:
>
> ordered_tests =3D (t for t in chain(stage1, stage2, stopsim()))
>
> This should work for any iterator you can imagine.
>
That sonds like an excellent solution. Thanks!

George
http://www.gammaburst.net