The python configuration file uses yaml

pip install pyyaml

# config.yaml
database:
  host: localhost
  username: myuser
  password: mypassword

# read_config.py
import yaml


def init_config_dict(config_file_path) -> dict:
    with open('config.yaml', 'r') as f:
        conf = yaml.safe_load(f)
    return conf


conf_file_name = "config.yaml"

config = init_config_dict(conf_file_name)

print(config)
print(config["database"]["host"])