1. import logging
  3. logging.basicConfig(level=logging.WARNING) # Configure logging
  5. class Config:
  6. """
  7. A class to manage configuration values with defensive checks.
  8. """
  10. def __init__(self):
  11. self._config = {} # Internal dictionary to store config values
  13. def set(self, key, value):
  14. """
  15. Sets a configuration value with defensive checks.
  16. """
  17. if not isinstance(key, str):
  18. raise TypeError("Key must be a string.")
  20. if key in self._config:
  21. existing_value = self._config[key]
  22. if not isinstance(existing_value, type(value)):
  23. raise TypeError(f"Value for key '{key}' must be of type {type(existing_value)}, but got {type(value)}")
  25. try:
  26. self._config[key] = value
  27. except Exception as e:
  28. logging.error(f"Error setting config value for '{key}': {e}")
  29. raise
  31. def get(self, key, default=None):
  32. """
  33. Retrieves a configuration value with a default if not found.
  34. """
  35. if key not in self._config:
  36. return default
  37. return self._config[key]
  39. def check(self, key, min_value=None, max_value=None):
  40. """
  41. Checks if a configuration value is within specified limits.
  42. """
  43. value = self.get(key)
  44. if value is not None:
  45. if min_value is not None and value < min_value:
  46. raise ValueError(f"Value for '{key}' must be at least {min_value}.")
  47. if max_value is not None and value > max_value:
  48. raise ValueError(f"Value for '{key}' must be no more than {max_value}.")
  50. def print_config(self):
  51. """Prints the current configuration."""
  52. print(self._config)

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