On 10/13/2020 11:09 AM, Chris Angelico wrote:
On Wed, Oct 14, 2020 at 1:41 AM Ronald Oussoren via Python-ideas
<python-ideas@python.org> wrote:
#— (python 3.9)
import dataclasses
@dataclasses.dataclass
class MyException (Exception):
a : int
b : str
try:
raise MyException(a=1, b="hello")
except MyException as exc:
print(f"{exc.a=}, {exc.b=}”)
# —
I like it. Very elegant. Never thought of a dataclass as an exception.
That's the beauty of dataclasses not using metaclasses or inheritance:
they can be used pretty much anywhere, with very few adverse
interactions. All credit to attrs for this design.
Eric
_______________________________________________
Python-ideas mailing list -- python-ideas@python.org
To unsubscribe send an email to python-ideas-le...@python.org
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/python-ideas@python.org/message/5BQEIHSU35E3L5NK73JMPMUYHPZXRSUC/
Code of Conduct: http://python.org/psf/codeofconduct/
