1. def paginate_records(records, page_size, page_number):
  2. """
  3. Paginates a list of records.
  5. Args:
  6. records (list): The list of records to paginate.
  7. page_size (int): The number of records per page.
  8. page_number (int): The page number to retrieve (1-based).
  10. Returns:
  11. list: A list of records for the requested page, or an empty list if the page number is invalid.
  13. Raises:
  14. TypeError: if records is not a list, or page_size or page_number are not integers
  15. ValueError: if page_size or page_number are not positive
  16. """
  18. # Input validation
  19. if not isinstance(records, list):
  20. raise TypeError("records must be a list")
  21. if not isinstance(page_size, int):
  22. raise TypeError("page_size must be an integer")
  23. if not isinstance(page_number, int):
  24. raise TypeError("page_number must be an integer")
  26. if page_size <= 0:
  27. raise ValueError("page_size must be a positive integer")
  28. if page_number <= 0:
  29. raise ValueError("page_number must be a positive integer")
  31. # Calculate the start and end indices for the page
  32. start_index = (page_number - 1) * page_size
  33. end_index = start_index + page_size
  35. # Handle cases where the page number is out of range
  36. if start_index >= len(records):
  37. return [] # Return an empty list if the page is beyond the last record
  39. # Slice the list to get the records for the page
  40. return records[start_index:end_index]

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