Evaluate a YAML document in Node.JS using Python.

load-YAML.js

// Evaluate a YAML document.
//
// + text - String YAML document
// + next - Function callback
//
// For example:
//
//     loadYAML("this: is\nyaml:", function(err, obj) {
//       if (err) throw err;
//       console.dir(obj);
//     });
//
// Returns nothing.
function loadYAML(text, next) {
  var exec = require('child_process').exec,
      script = 'import json, yaml, sys; json.dump(yaml.load(sys.stdin), sys.stdout)',
      py = exec("python -c '" + script + "'", function(err, stdout, stderr) {
        err ? next(err) : next(null, JSON.parse(stdout));
      });

  py.stdin.end(text);
}