





class  A__    :




   """simple docstring"""



   def __init__(					self					,  lowercase)			->						None:







          '''simple docstring'''

          a__						:	Optional[Any] =				len(lowercase)
          a__						:	Tuple =				[0] * len_array

          if len_array > 0:
                 a__						:	List[Any] =				array[0]

          for i in range(1					,  lowercase):
                 a__						:	List[str] =				self.prefix_sum[i - 1] + array[i]

   def 							__lowercase		(					self					,  lowercase					,  lowercase)			->						int:







          '''simple docstring'''

          if start == 0:
                 return self.prefix_sum[end]

          return self.prefix_sum[end] - self.prefix_sum[start - 1]

   def 							__lowercase		(					self					,  lowercase)			->						bool:







          '''simple docstring'''

          a__						:	Union[str, Any] =				{0}
          for sum_item in self.prefix_sum:
                 if sum_item - target_sum in sums:
                        return True

                 sums.add(lowercase)

          return False


if __name__ == "__main__":
    import doctest

    doctest.testmod()







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

import requests





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





def      __snake_case	(			_UpperCAmelCase				):
    __a						       =				{
        '''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)''',
    }
    __a						       =				{better_key: ol_book_data[key] for key, better_key in desired_keys.items()}
    __a						       =				[
        get_openlibrary_data(author['''key''']				)['''name'''] for author in data['''Authors''']
    ]
    __a						       =				data['''First sentence''']['''value''']
    for key, value in data.items():
        if isinstance(_UpperCAmelCase   , _UpperCAmelCase				):
            __a						       =				''', '''.join(_UpperCAmelCase				)
    return data


if __name__ == "__main__":
 import doctest

 doctest.testmod()

 while True:
  __snake_case						:List[Any]      		=     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:
   __snake_case						:Optional[Any]      		=     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}.')





