

from json import JSONDecodeError  # Workaround for requests.exceptions.JSONDecodeError

import requests


def   __SCREAMING_SNAKE_CASE					(SCREAMING_SNAKE_CASE__ = "isbn/0140328726"       ):
						snake_case_   =	olid.strip().strip('''/'''       )  # Remove leading/trailing whitespace & slashes
						if new_olid.count('''/'''       ) != 1:
												snake_case_   =	F'''{olid} is not a valid Open Library olid'''
												raise ValueError(SCREAMING_SNAKE_CASE__       )
						return requests.get(F'''https://openlibrary.org/{new_olid}.json'''       ).json()


def   __SCREAMING_SNAKE_CASE					(SCREAMING_SNAKE_CASE__       ):
						snake_case_   =	{
						    '''title''': '''Title''',
						    '''publish_date''': '''Publish date''',
						    '''authors''': '''Authors''',
						    '''number_of_pages''': '''Number of pages:''',
						    '''first_sentence''': '''First sentence''',
						    '''isbn_10''': '''ISBN (10)''',
						    '''isbn_13''': '''ISBN (13)''',
						}
						snake_case_   =	{better_key: ol_book_data[key] for key, better_key in desired_keys.items()}
						snake_case_   =	[
						    get_openlibrary_data(author['''key''']       )['''name'''] for author in data['''Authors''']
						]
						snake_case_   =	data['''First sentence''']['''value''']
						for key, value in data.items():
												if isinstance(SCREAMING_SNAKE_CASE__  ,		SCREAMING_SNAKE_CASE__       ):
																		snake_case_   =	''', '''.join(SCREAMING_SNAKE_CASE__       )
						return data


if __name__ == "__main__":
					import doctest

					doctest.testmod()

					while True:
										lowerCAmelCase_       	=	input('''\nEnter the ISBN code to search (or \'quit\' to stop): ''').strip()
										if isbn.lower() in ("", "q", "quit", "exit", "stop"):
															break

										if len(isbn) not in (10, 13) or not isbn.isdigit():
															print(f"""Sorry, {isbn} is not a valid ISBN.  Please, input a valid ISBN.""")
															continue

										print(f"""\nSearching Open Library for ISBN: {isbn}...\n""")

										try:
															lowerCAmelCase_       	=	summarize_book(get_openlibrary_data(f"""isbn/{isbn}"""))
															print('''\n'''.join(f"""{key}: {value}""" for key, value in book_summary.items()))
										except JSONDecodeError:  # Workaround for requests.exceptions.RequestException:
															print(f"""Sorry, there are no results for ISBN: {isbn}.""")

"""simple docstring"""



from math import pow
def 					_UpperCAmelCase      ( __lowerCamelCase   :       int ,					__lowerCamelCase   :       int ,					__lowerCamelCase   :       int ,					__lowerCamelCase   :       int ,					__lowerCamelCase   :       int ,					)     ->					tuple[int, int]:
  if current_sum == needed_sum:
    # If the sum of the powers is equal to needed_sum, then we have a solution.
    solutions_count += 1
    return current_sum, solutions_count

  _snake_case					     =       int(pow(__lowerCamelCase ,					__lowerCamelCase		)		)
  if current_sum + i_to_n <= needed_sum:
    # If the sum of the powers is less than needed_sum, then continue adding powers.
    current_sum += i_to_n
    _snake_case     ,					_snake_case					     =       backtrack(
        __lowerCamelCase ,					__lowerCamelCase ,					current_number + 1 ,					__lowerCamelCase ,					__lowerCamelCase		)
    current_sum -= i_to_n
  if i_to_n < needed_sum:
    # If the power of i is less than needed_sum, then try with the next power.
    _snake_case     ,					_snake_case					     =       backtrack(
        __lowerCamelCase ,					__lowerCamelCase ,					current_number + 1 ,					__lowerCamelCase ,					__lowerCamelCase		)
  return current_sum, solutions_count
def 					_UpperCAmelCase      ( __lowerCamelCase   :       int ,					__lowerCamelCase   :       int		)     ->					int:
  if not (1 <= needed_sum <= 10_00 and 2 <= power <= 10):
    raise ValueError(
        '''Invalid input\n'''
        '''needed_sum must be between 1 and 1000, power between 2 and 10.'''		)

  return backtrack(__lowerCamelCase ,					__lowerCamelCase ,					1 ,					0 ,					0		)[1]  # Return the solutions_count


if __name__ == "__main__":
 import doctest

 doctest.testmod()



