config.py

# config.py

import yaml

def load_config(file_path):
    """
    Load the configuration from a YAML file.

    Args:
        file_path (str): The path to the YAML configuration file.

    Returns:
        dict: The loaded configuration dictionary, or None if an error occurs.
    """
    try:
        with open(file_path, 'r', encoding='utf-8') as file:
            config = yaml.safe_load(file)
        return config
    except FileNotFoundError:
        print(f"Configuration file not found: {file_path}")
        return None
    except yaml.YAMLError as e:
        print(f"Error loading configuration file: {str(e)}")
        return None

def validate_config(config, required_keys):
    """
    Validate the configuration dictionary to ensure all required keys are present.

    Args:
        config (dict): The configuration dictionary to validate.
        required_keys (list): A list of keys that must be present in the configuration.

    Returns:
        bool: True if all required keys are present, False otherwise.
    """
    missing_keys = [key for key in required_keys if key not in config]
    if missing_keys:
        print(f"Missing required configuration keys: {missing_keys}")
        return False
    return True

def get_config(file_path, required_keys):
    """
    Load and validate the configuration.

    Args:
        file_path (str): The path to the YAML configuration file.
        required_keys (list): A list of keys that must be present in the configuration.

    Returns:
        dict: The validated configuration dictionary, or None if validation fails.
    """
    config = load_config(file_path)
    if config is None:
        return None
    
    if validate_config(config, required_keys):
        return config
    else:
        return None