I don't think this will fly - if not for any other reason, it is a very
rare pattern
to take place alongside such important flow-control statements as
continue and break
But for your convenience, here is a small wrapper that, along with the
walrus operator, could be used when you need that functionality:
```
class Repeatable:
def __init__(self, it):
self.it = it
self.repeat_last = False
self.last_item = None
def repeat(self):
self.repeat_last = True
def __iter__(self):
for item in self.it:
while self.repeat_last:
self.repeat_last = False
yield self.last_item
self.last_item = item
yield item
test = 1
for x in (rx:=Repeatable(range(3))):
print(x)
if x == test:
test = -1
rx.repeat()
```
On Thu, Jan 26, 2023 at 4:41 PM Thomas Ratzke <[email protected]>
wrote:
> Hi all,
>
> i would like to suggest the following Python feature. It naturally
> happens that one want's to repeat the current iteration of a for loop
> for example after an error happened. For this purpose, I usually set a
> flag and put a while loop inside my for loop. A simple "repeat"
> statement just like "continue" or "break" would make the code much more
> readable.
>
>
> This is my solution at the moment with A being checked:
>
> for _ in range(n):
> flag = True
> while flag:
> ...
> if A:
> flag = False # go to next iteration
>
>
> I would suggest the repeat statement in the following sense
>
> for _ in range(n):
> ...
> if not A:
> repeat # repeat current iteration
>
> Notice the "not" in the if clause. I am really looking forwars to hear
> your opinions.
>
> Best regards
> Thomas
>
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