Stephen J. Turnbull wrote:
Thanks ? it's version 3.1.3, so it's these lines: https://github.com/lepture/mistune/blob/v3.1.3/src/mistune/core.py#L212-L216 OK. The version bump and the assert suggest to me that they've made significant changes. I don't know much about docker, but if you can arrange for the container to be built with "mistune<3.1" in the requirements.txt file or other file specifying the Python packages,
Matt Blissett via Mailman-users writes: that might work better as I cannot recall reports of this kind of problem. (No promises, just going on the "significant changes" guess.)
Downgrading mistune as suggested has fixed the problem, thanks!
I've made a pull request for the Docker image: https://github.com/maxking/docker-mailman/pull/754
-- Matt Blissett