On 29/06/2022 23:17, Chris Angelico wrote:
On Thu, 30 Jun 2022 at 02:49, Johannes Bauer wrote:
But now consider what happens when we create the lambdas inside a list
comprehension (in my original I used a generator expresison, but the
result is the same). Can you guess what happens when we crea
On Thu, 30 Jun 2022 at 02:49, Johannes Bauer wrote:
> But now consider what happens when we create the lambdas inside a list
> comprehension (in my original I used a generator expresison, but the
> result is the same). Can you guess what happens when we create conds
> like this?
>
> conds = [ lamb
Or you could try this as an alternative:
conds = [ (lambda code: lambda msg: msg.hascode(code))(z) for z in
("foo", "bar") ]
Op 29/06/2022 om 12:43 schreef Johannes Bauer:
Aha!
conds = [ lambda msg, z = z: msg.hascode(z) for z in ("foo", "bar") ]
Is what I was looking for to explicitly use
Hi list,
I've just encounted something that I found extremely unintuitive and
would like your feedback. This bit me *hard*, causing me to question my
sanity for a moment. Consider this minimal example code (Py 3.10.4 on
Linux x64):
class Msg():
def hascode(self, value):
p
Aha!
conds = [ lambda msg, z = z: msg.hascode(z) for z in ("foo", "bar") ]
Is what I was looking for to explicitly use the value of z. What a
caveat, didn't see that coming.
Learning something new every day.
Cheers,
Joe
Am 29.06.22 um 11:50 schrieb Johannes Bauer:
> Hi list,
>
> I've just en
