yaml/libyaml

YAML mappings require key uniqueness, but pyYAML does not.

sergio-nsk opened this issue · 1 comments

Mapping

yaml.load('1: 1\n1: 2')

must raise an error, but it results in the dictionary

{1: 2}

https://github.com/yaml/pyyaml

edit: and search for existing issues first, plz