In Defense of YAML

In short, the YAML that people complain about is YAML 1.1. The specification that actually governs the language today is a different, safer, more predictable document. The problem is that most people’s experience of YAML is mediated not by the specification but by their parser, and for most Python users, that parser has been PyYAML, which implements YAML 1.1 and has not changed its core semantics since 2006.