yaml_parsar.py

# import yaml
# from yaml.loader import SafeLoader
#
# with open('userdetail.yaml') as f:
#     data = yaml.load(f, Loader=SafeLoader)
#     print(data)
#

import sys
from ruamel.yaml import YAML

with open('userdetail.yaml') as f:
    data = YAML().load(f)

data['phone'] = '0123244324234324'
print(data)