Sort yaml alphabetically

sort_yaml.py

# pip install pyyaml
import yaml

# raw file: https://github.com/OpenBB-finance/OpenBBTerminal/blob/main/website/data/menu/main.yml
with open('main.yml', 'rt', encoding='utf8') as f:
  content = yaml.safe_load(f.read())
  content = content['main'][0]

def sort_nested(l: list):
  result = []
  for d in sorted(l, key=lambda d: d['name'].lower()):
    if d.get('sub'):
      d['sub'] = sort_nested(d['sub'])
    result.append(d)
  return result

with open('new.yml', 'wt', encoding='utf8') as f:
  yaml.safe_dump(sort_nested(content['sub']))

# some manual work was needed to copy the
# remainder of main.yml to new.yml and format the document.