[Python] throw ad un generatore: perché non riparte dall'inizio?

[Marco Beri]

On Thu, 28 Jul 2022 at 08:57, Marco De Paoli <depaolim a gmail.com> wrote:

> =
> ---><--- begin test_gen.py ---><---
> def gen():
>     while True:
>         try:
>             yield "A"
>             yield "B"
>             yield "C"
>         except Exception as ex:
>             print("catched exception", ex)
>
>
> g = gen()
> you_can_specify_any_number_of_steps = 3
> for idx in range(you_can_specify_any_number_of_steps):
>     print("result:", g.send(None))
> print("throw...")
> g.throw(Exception("BOOM"))
> print("result:", g.send(None), "*** I was expecting A and I get B, why?!?
> ***")
> print("result:", g.send(None))
>
>
Se invece di g.throw(Exception("BOOM")) scrivi print(
g.throw(Exception("BOOM")))

Ritroverai il tuo "A" :-)

Ciao.
Marco.

>
>
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