parse_yml.py

import yaml

with open("test.yml", "r") as stream:
  try:
    y_structure = yaml.safe_load(stream)
    # will be dict of dict / list etc.
    print(type(y_structure))
    print(yaml.dump(y_structure, default_flow_style=False))
  except yaml.YAMLError as exc:
    print(exc)