When to use YAML instead of JSON

Question

YAML appears to be more readable than a JSON formatted object, apart from readability what advantages or disadvantages does PyAML have instead of JSON? How should we make a decision between the two, note that I am not asking the difference between the two but recommendations on why and when to use one over the other?

Answer 1

JSON is more formal format than YAML. IMHO:

YAML is better for fast creation and understanding of simple configuration files of software modules;

JSON is better for fast implementation and implementation of simple data transfering between software modules.