Markdown Exec

pip install "markdown-exec[ansi]"

This extension relies on the SuperFences extension of PyMdown Extensions.

To allow execution of code blocks, configure a custom fence from Python:

from markdown import Markdown
from markdown_exec import formatter, validator
Markdown(
    extensions=["pymdownx.superfences"],
    extension_configs={
        "pymdownx.superfences": {
            "custom_fences": [
                {
                    "name": "python",
                    "class": "python",
                    "validator": validator,
                    "format": formatter,
                }
                # ...one fence for each language we support:
                # bash, console, md, markdown, py, python, pycon, pyodide, sh, tree, etc.
            ]
        }
    }
)

...or in MkDocs configuration file, as a Markdown extension:

# mkdocs.yml
markdown_extensions:
pymdownx.superfences:
    custom_fences:
    - name: python
      class: python
      validator: !!python/name:markdown_exec.validator
      format: !!python/name:markdown_exec.formatter
    # ...one fence for each language we support:
    # bash, console, md, markdown, py, python, pycon, sh, tree

...or in MkDocs configuration file, as a plugin:

# mkdocs.yml
plugins:
search
markdown-exec
SuperFences must still be enabled!
markdown_extensions:
pymdownx.superfences

[project.plugins.markdown-exec]

TIP: We recommend enabling Markdown Exec with the MkDocs plugin if you are using MkDocs/Zensical: it will take care of adding relevant assets (CSS/JS) to the final site when needed.

WARNING: Limitation of configuration through Markdown/PyMDown for MkDocs. Configuration through pymdownx.superfences directly is not well supported within MkDocs for fences that require assets inclusion, like pyodide. For these you will have to include the assets manually. In the future we will provide ways to include them automatically. In Zensical these assets are provided natively.

Usage

You are now able to execute code blocks instead of displaying them:

The exec option will be true for every possible value except 0, no, off and false (case insensitive).

Below you can see an example of running a bash script that is expected to return a non-zero exit code:

See usage for more details, and the gallery for more examples!

Sponsors

And 4 more private sponsor(s).