



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

import requests
def 	snake_case__       (					__lowercase = "isbn/0140328726"       )		->		dict:







						"""simple docstring"""

						A__	:							Any						    = olid.strip().strip("/"       )  # Remove leading/trailing whitespace & slashes
						if new_olid.count("/"       ) != 1:
												A__	:							str						    = F'{olid} is not a valid Open Library olid'
												raise ValueError(__lowercase       )
						return requests.get(F'https://openlibrary.org/{new_olid}.json'       ).json()
def 	snake_case__       (					__lowercase       )		->		dict:







						"""simple docstring"""

						A__	:							List[Any]						    = {
						    "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__	:							int						    = {better_key: ol_book_data[key] for key, better_key in desired_keys.items()}
						A__	:							Optional[int]						    = [
						    get_openlibrary_data(author["key"]       )["name"] for author in data["Authors"]
						]
						A__	:							Optional[int]						    = data["First sentence"]["value"]
						for key, value in data.items():
												if isinstance(__lowercase							,     __lowercase       ):
																		A__	:							int						    = ", ".join(__lowercase       )
						return data


if __name__ == "__main__":
		import doctest

		doctest.testmod()

		while True:
				snake_case    :						List[str]  =						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 (1_0, 1_3) 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    :						str  =						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}.""")




from __future__ import annotations

snake_case    :						Optional[Any]  =						{
    'A': ['B', 'C', 'E'],
    'B': ['A', 'D', 'E'],
    'C': ['A', 'F', 'G'],
    'D': ['B'],
    'E': ['A', 'B', 'D'],
    'F': ['C'],
    'G': ['C'],
}




class 							lowerCAmelCase__  :







					def __init__(       self      :     Optional[Any]			,		_A      :     dict[str, list[str]]			,		_A      :     str):
											A__	:							Optional[Any]						    = graph
											# mapping node to its parent in resulting breadth first tree
											A__	:							dict[str, str | None]						    = {}
											A__	:							List[str]						    = source_vertex







					def  _lowercase			(       self      :     List[Any]):
											A__	:							str						    = {self.source_vertex}
											A__	:							List[str]						    = None
											A__	:							List[str]						    = [self.source_vertex]  # first in first out queue

											while queue:
																	A__	:							int						    = queue.pop(0)
																	for adjacent_vertex in self.graph[vertex]:
																							if adjacent_vertex not in visited:
																													visited.add(_A)
																													A__	:							Any						    = vertex
																													queue.append(_A)







					def  _lowercase			(       self      :     int			,		_A      :     str):
											if target_vertex == self.source_vertex:
																	return self.source_vertex

											A__	:							List[Any]						    = self.parent.get(_A)
											if target_vertex_parent is None:
																	A__	:							Union[str, Any]						    = (
																	    F'No path from vertex: {self.source_vertex} to vertex: {target_vertex}'
																	)
																	raise ValueError(_A)

											return self.shortest_path(_A) + F'->{target_vertex}'


if __name__ == "__main__":
		snake_case    :						Any  =						Graph(graph, 'G')
		g.breath_first_search()
		print(g.shortest_path('D'))
		print(g.shortest_path('G'))
		print(g.shortest_path('Foo'))