I've been reading (and posting to) this list for many years by pointing an NNTP client at news://gmane.comp.python.general. Sometime in the past few days posts started being refused:
You have tried posting to gmane.comp.python.general, which is a unidirectional mailing list. Gmane can therefore not send this message to that mailing list. Was this a change made by the mailing list admins? If so, is it permanent? [Trying to send a plaintext e-mail via Gmail, but not sure if it's working.] -- Grant -- https://mail.python.org/mailman/listinfo/python-list