1. def batch_operations():
  2. """
  3. Performs a series of batch operations based on user input,
  4. using default values if input is missing. For non-production use.
  5. """
  7. operations = []
  8. while True:
  9. operation = input("Enter operation (or 'done' to finish): ")
  10. if operation.lower() == 'done':
  11. break
  13. # Default values
  14. name = "default_name"
  15. age = 0
  16. city = "Unknown"
  18. if operation == "create_user":
  19. name = input("Enter user name: ")
  20. try:
  21. age = int(input("Enter user age: "))
  22. except ValueError:
  23. age = 0 # Default if not an integer
  24. city = input("Enter user city: ")
  25. operations.append({"type": "create_user", "name": name, "age": age, "city": city})
  26. elif operation == "update_user":
  27. user_id = int(input("Enter user ID to update: "))
  28. try:
  29. new_age = int(input("Enter new age: "))
  30. age = new_age
  31. except ValueError:
  32. age = 0
  34. operations.append({"type": "update_user", "user_id": user_id, "age": age})
  35. elif operation == "list_users":
  36. operations.append({"type": "list_users"})
  37. else:
  38. print("Invalid operation.")
  40. # Process the operations (for demonstration)
  41. for op in operations:
  42. if op["type"] == "create_user":
  43. print(f"Creating user: {op['name']}, Age: {op['age']}, City: {op['city']}")
  44. elif op["type"] == "update_user":
  45. print(f"Updating user with ID {op['user_id']}, Age: {op['age']}")
  46. elif op["type"] == "list_users":
  47. print("Listing users...")
  48. else:
  49. print(f"Unknown operation: {op}")
  51. if __name__ == "__main__":
  52. batch_operations()

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