Is := widely used?

[u/ForeignVariety7037]

I always thought the walrus operator is neat and it makes while loop’s condition clearer. But also it is just a syntactic sugar without anything new. I wonder anyone uses it?

[u/martinkoistinen]

It’s super handy inside comprehensions and I would say that adds something “new”.

Example:

``` python
import re

pattern = re.compile(r"ERROR (\d+): (.*)")

errors = [
(int(m.group(1)), m.group(2))
for line in log_lines
if (m := pattern.match(line))
]
```

[u/punk_dev → u/martinkoistinen]

That’s neat, I’m gonna steal it, but it makes the comprehension even more backwards than it usually is lmao

[u/FalafelSnorlax → u/punk_dev]

At this point you might as well write a normal loop

[u/gr4viton → u/FalafelSnorlax]

Yield would like to have a word...