pyaml_env_yaml_config_with_environment_variable_parsing.py

1import os
2from pyaml_env import parse_config
3
4# Set an environment variable to be parsed by the library
5os.environ['DATABASE_USER'] = 'admin'
6
7# Example YAML content (this would typically be in a file named config.yaml)
8# database:
9#   user: ${DATABASE_USER}
10#   port: ${DATABASE_PORT:-5432}
11
12# Parse the configuration file
13config = parse_config('config.yaml')
14
15# Access the data
16print(config['database']['user'])  # Output: admin
17print(config['database']['port'])  # Output: 5432 (uses default if env var is missing)