Performance

You can view our continuous integration benchmarking analysis at: https://executablebooks.github.io/markdown-it-py/dev/bench/, or you can run it for yourself within the repository:

tox -e py311-bench-packages -- --benchmark-columns mean,stddev

package	version	mean (ms)	stddev
markdown-it-pyrs[1]	0.2.1	6.410	0.426
mistune[2]	3.0.1	80.409	2.335
markdown-it-py	3.0.0	97.242	4.427
mistletoe	1.1.0	99.633	4.628
commonmark-py	0.9.1	300.403	9.706
pymarkdown	3.4.3	387.775	10.394
pymarkdown (+extras)	3.4.3	646.564	11.316
panflute	2.3.0	860.105	208.607

As you can see, markdown-it-py doesn’t pay with speed for it’s flexibility.

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[1]

markdown-it-pyrs is a Rust implementation of markdown-it-py’s parser, in beta development, check it out at: chrisjsewell/markdown-it-pyrs

[2]

mistune is not CommonMark compliant, which is what allows for its faster parsing, at the expense of issues, for example, with nested inline parsing. See mistletoes’s explanation for further details.