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PyYAML

PyYAML is a YAML parser and emitter library for the Python programming language, maintained by the YAML community alongside the LibYAML C library. It is released under the MIT licence.

Licensing at a Glance

  • Open source

  1. PyYAML is released under the MIT licence.[1]

  2. The PyYAML module was written by Kirill Simonov and is now maintained by the YAML community; copyright is held by Kirill Simonov (2006-2016) and Ingy döt Net (2017 onwards).[2]

  3. The MIT licence text in the PyYAML repository permits use, copying, modification, merging, publishing, distribution, sublicensing and sale of copies without charge, provided the copyright and permission notice is included.[3]

  4. PyYAML offers both pure-Python and LibYAML-based parsers and emitters; LibYAML, the C library, is also released under the MIT licence.[4]

Products

References

  1. PyYAML · pyyaml.org · retrieved 2026-09-27
  2. PyYAML · pyyaml.org · retrieved 2026-09-27
  3. pyyaml/LICENSE at main · yaml/pyyaml · GitHub · github.com · retrieved 2026-09-27
  4. LibYAML · pyyaml.org · retrieved 2026-09-27
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