mistune-3.0.0a1 breaks things

[jarrodmillman]

With mistune-2.0.3 and nbconvert-7.0.0rc2, things work. With mistune-3.0.0a1 and nbconvert-7.0.0rc2 we get:

Exception occurred:
  File "/opt/hostedtoolcache/Python/3.10.5/x64/lib/python3.10/site-packages/nbconvert/filters/markdown_mistune.py", line 49, in MathBlockParser
    RULE_NAMES = ("multiline_math",) + BlockParser.RULE_NAMES
AttributeError: type object 'BlockParser' has no attribute 'RULE_NAMES'

This depends on one of these two upstream issues:

• 6.5.0: not ready for latest mistune 2.0.2 jupyter/nbconvert#1787
• New release of mistune is a major version release: please take it up jupyter/nbconvert#1685

[choldgraf]

Good catch - I added the two upstream issues that I think need to be resolved for this one to be fixed.

Do you think that this issue should block the next release (via being attached to this milestone)? I think that might be a while before this is fixed

[choldgraf]

I'm going to bump this one to 0.11, since I think we want to make a release before this issue will likely be resolved.

[TiagodePAlves]

An update for Mistune v3 is already prepared in jupyter/nbconvert#1820, just waiting for a final release.

[12rambau]

we are not directly impoting mistune ourselves, is'nt something that should be handled from nbconvert ?

[jarrodmillman]

https://pypi.org/project/mistune/3.0.0/ is out. Now we just need to wait for nbconvert to update:

• https://github.com/jupyter/nbconvert/blob/main/pyproject.toml

I will close this and comment on the nbconvert issue and PR.