New submission from Théophile Chevalier <theophile.cheval...@lenstra.fr>:
Calling dataclasses.replace(instance, **changes) returns a new object of the same type. >From my understanding there is, however, no method to update in place fields >of a dataclass from another one. I propose to add dataclasses.update(instance_to_update, other_instance, **changes). This would for instance allow one to change all fields of current object in a sturdy way. In my case, I currently call obj.__dict__.update(other_obj.__dict__) to perform the operation, but I know it has always to be done pretty carefully. If this is accepted, I'm willing to post the change. ---------- messages: 333872 nosy: theophile priority: normal severity: normal status: open title: Allow dataclasses to be updated in place type: enhancement versions: Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35761> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
