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a YAML parser and emitter for Python.

PyYAML features

  • a complete YAML 1.1 parser. In particular, PyYAML can parse all examples from the specification. The parsing algorithm is simple enough to be a reference for YAML parser implementors.
  • Unicode support including UTF-8/UTF-16 input/output and \u escape sequences.
  • low-level event-based parser and emitter API (like SAX).
  • high-level API for serializing and deserializing native Python objects (like DOM or pickle).
  • support for all types from the YAML types repository. A simple extension API is provided.
  • both pure-Python and fast LibYAML-based parsers and emitters.
  • relatively sensible error messages.



Verified by

Verified on


Verified by

Kelly Hopkins

Verified on

19 November 2009

Leaders and contributors

Kirill Simonov Maintainer

Resources and communication

AudienceResource typeURI
Python (Ref)

Software prerequisites

This entry (in part or in whole) was last reviewed on 3 April 2018.


"Python (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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