Psych is a YAML parser and emitter. Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML] for its YAML parsing and emitting capabilities. In addition to wrapping libyaml, Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.

Required Ruby Version

>= 1.9.2

Authors

Aaron Patterson, SHIBATA Hiroshi, Charles Oliver Nutter

Versions

  1. 5.4.0 June 02, 2026 java (69 KB)
  2. 5.4.0 June 02, 2026 (38.5 KB)
  3. 5.3.1 December 17, 2025 java (68.5 KB)
  4. 5.3.1 December 17, 2025 (38.5 KB)
  5. 5.3.0 December 10, 2025 java (68.5 KB)
  6. 3.0.0.beta4 November 27, 2017 java (117 KB)
Show all versions (165 total)

Requirements

jar org.yaml:snakeyaml, 1.18

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