Panflute: Pythonic Pandoc Filters

panflute is a Python package that makes creating Pandoc filters fun.

For a detailed user guide, documentation, and installation instructions, see http://scorreia.com/software/panflute/. For examples that you can use as starting points, check the examples repo, the sample template, or this github search. If you want to contribute, head here.

You might also find useful this presentation on how I use markdown+pandoc+panflute to write research papers (at the Banco de Portugal 2019 Workshop on Reproductible Research).

Installation

Pip

To manage panflute using pip, open the command line and run

• pip install panflute to install
  • pip install "panflute[extras]" to include extra dependencies (yamlloader)
• pip install -U panflute to upgrade
• pip uninstall panflute to remove

You need a matching pandoc version for panflute to work flawlessly. See [Supported pandoc versions] for details. Or, use the [Conda] method to install below to have the pandoc version automatically managed for you.

Conda

To manage panflute with a matching pandoc version, open the command line and run

• conda install -c conda-forge pandoc 'panflute>=2.0.5' to install both conda install -c conda-forge pandoc 'panflute>=2.0.5' yamlloader to include extra dependencies
• conda update pandoc panflute to upgrade both
• conda remove pandoc panflute to remove both

You may also replace conda by mamba, which is basically a drop-in replacement of the conda package manager. See mamba-org/mamba: The Fast Cross-Platform Package Manager for details.

Note on versions

Supported Python versions

panflute 1.12 or above dropped support of Python 2. When using Python 3, depending on your setup, you may need to use pip3/python3 explicitly. If you need to use panflute in Python 2, install panflute 1.11.x or below.

Currently supported Python versions: . Check pyproject.toml for details, which further indicates support of pypy on top of CPython.

Supported pandoc versions

pandoc versioning semantics is MAJOR.MAJOR.MINOR.PATCH and panflute's is MAJOR.MINOR.PATCH. Below we shows matching versions of pandoc that panflute supports, in descending order. Only major version is shown as long as the minor versions doesn't matter.

panflute version	supported pandoc versions	supported pandoc API versions
2.3.1	2.11.0.4–3.1.x	1.22–1.23
2.2.4	2.11.0.4–2.17.x	1.22–1.22.1
2.1.x	2.11.0.4—2.14.x	1.22
2.0	2.11.0.4—2.11.x	1.22
not supported	2.10	1.21
1.12	2.7-2.9	1.17.5–1.20

Note: pandoc 2.10 is short lived and 2.11 has minor API changes comparing to that, mainly for fixing its shortcomings. Please avoid using pandoc 2.10.

Dev Install

After cloning the repo and opening the panflute folder, run

• python -m pip install . to install the package locally
• python -m pip install -e . to install locally with a symlink so changes are automatically updated

Contributing

Feel free to submit push requests. For consistency, code should comply with pep8 (as long as its reasonable), and with the style guides by @kennethreitz and google. Read more here.

License

BSD3 license (following pandocfilters by @jgm).

Changelog

• 2.3.0 Update Pandoc API from 1.22 to 1.23 (Pandoc 3.0):
  • Add Figure block object
  • Remove Null block object (scheduled for removed)