Comparison of Python TOML parser libraries

1

Python Poetry

Of the available options, only tomlkit supports style-preserving roundtrip parsing. Furthermore, tomlkit was created for the express purpose of handling TOML parsing for the poetry tool. As this is one of the 2 most popular new PEP517 & PEP518 Python build systems there is some comfort to be had in the wide adoption of a very actively used tool that means a greater likelihood of continued maintenance & support, and specifically that pyproject.toml files should parse without surprises.

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2

pypyr

The pypyr automation pipeline task-runner open-source project recently added TOML parsing & writing functionality as a core feature. To this end, I researched the available free & open-source Python TOML parser libraries to figure out which option to use.

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