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# Available Extensions

Python Markdown offers a flexible extension mechanism, which makes it possible to change and/or extend the behavior of the parser without having to edit the actual source files.

To use an extension, pass it to markdown with the `extensions` keyword.

    markdown.markdown(some_text, extensions=[MyExtension(), 'path.to.my.ext', 'markdown.extensions.footnotes'])

See the Library Reference for more details.

From the command line, specify an extension with the `-x` option.

    $ python -m markdown -x markdown.extensions.footnotes -x markdown.extensions.tables input.txt > output.html

See the Command Line docs or use the `--help` option for more details.

See Also

If you would like to write your own extensions, see the Extension API for details.

## Officially Supported Extensions

The extensions listed below are included with (at least) the most recent release and are officially supported by Python-Markdown. Any documentation is maintained here and all bug reports should be made to the project. If you have a typical install of Python-Markdown, these extensions are already available to you using the “name” listed in the second column below.

Extension | “Name”
--- | ---
Extra | `markdown.extensions.extra`
Abbreviations | `markdown.extensions.abbr`
Attribute Lists | `markdown.extensions.attr_list`
Definition Lists | `markdown.extensions.def_list`
Fenced Code Blocks | `markdown.extensions.fenced_code`
Footnotes | `markdown.extensions.footnotes`
Tables | `markdown.extensions.tables`
Smart Strong | `markdown.extensions.smart_strong`
Admonition | `markdown.extensions.admonition`
CodeHilite | `markdown.extensions.codehilite`
HeaderId | `markdown.extensions.headerid`
Meta-Data | `markdown.extensions.meta`
New Line to Break | `markdown.extensions.nl2br`
Sane Lists | `markdown.extensions.sane_lists`
SmartyPants | `markdown.extensions.smarty`
Table of Contents | `markdown.extensions.toc`
WikiLinks | `markdown.extensions.wikilinks`

## Third Party Extensions

Various individuals and/or organizations have developed extensions which they have made available to the public. A list of third party extensions is maintained on the wiki for your convenience. The Python-Markdown team offers no official support for these extensions. Please see the developer of each extension for support.

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