Matt Blissett via Mailman-users writes:
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, that might work better as I cannot recall reports of this kind of problem. (No promises, just going on the "significant changes" guess.)
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That's probably something Abhilash Raj <maxking@asynchronous.in> needs to look at, as I would think the mistune code should not be called at all in that case. Although the exception seems likely to be a mistune issue, this seems rather a HyperKitty bug. Mark may have some ideas, but I'm pretty sure this is Abhilash's code.
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