AttributeError in MathBlockParser

[kobina-adu]

I encountered an AttributeError when exporting my .ipynb to .html. The process involved running jupyter-nbconvert and due to a typo in the MathBlockParser class from the mistune package. The error message indicated that there is no attribute parse_axt_heading, and it suggested that it might be a typo for parsing parse_atx_heading.

Traceback:
AttributeError: 'MathBlockParser' object has no attribute 'parse_axt_heading'. Did you mean: 'parse_atx_heading'?

Steps to Reproduce:

1. Install the latest version of jupyter (it comes along with the nbconvert and mistune packages).
2. export your single notebook to an html file or run the jupyter-nbconvert on a jupyter notebook.

Temporal fix:
To resolve the issue temporarily, I duplicated the parse_atx_heading method in the MathBlockParser class and named the duplicate parse_axt_heading. Changing the name of the attribute affected other operations hence the duplication served right.

Environment:
Python version: 3.13
nbconvert version: [version]
mistune version: [version]
Operating system: Windows 10

Additional Information: Please let me know if you need any further information or if there is a better way to address this issue.

[bollwyvl]

Dupe of #2198