fsspec
pandas[feather,parquet]

[docs]
mkdocs
mkdocs-material
mkdocstrings
mkdocstrings-python

[orc]
pyarrow[orc]

[pdf]
weasyprint<70.0.0,>=66.0.0

[test]
pytest-ckan

[xlsx]
openpyxl<4.0.0,>=3.1.2
