



from __future__ import annotations

__snake_case						:Dict      		=     list[tuple[int, int]]

__snake_case						:Union[str, Any]      		=     [
    [0, 0, 0, 0, 0, 0, 0],
    [0, 1, 0, 0, 0, 0, 0],  # 0 are free path whereas 1's are obstacles
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 0, 0, 0, 0],
    [1, 0, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 1, 0, 0],
]

__snake_case						:str      		=     ([-1, 0], [0, -1], [1, 0], [0, 1])  # up, left, down, right

class     _A       :



       def __init__(		self							:     List[str]     ,		__SCREAMING_SNAKE_CASE							:     int     ,		__SCREAMING_SNAKE_CASE							:     int     ,		__SCREAMING_SNAKE_CASE							:     int     ,		__SCREAMING_SNAKE_CASE							:     int     ,		__SCREAMING_SNAKE_CASE							:     float     ,		__SCREAMING_SNAKE_CASE							:     Node | None     ,		):


           '''simple docstring'''

           __a						       =				pos_x
           __a						       =				pos_y
           __a						       =				(pos_y, pos_x)
           __a						       =				goal_x
           __a						       =				goal_y
           __a						       =				g_cost
           __a						       =				parent
           __a						       =				self.calculate_heuristic()



       def 		_lowerCamelCase			(		self							:     Union[str, Any]):


           '''simple docstring'''

           __a						       =				abs(self.pos_x - self.goal_x)
           __a						       =				abs(self.pos_y - self.goal_y)
           return dx + dy





       def __lt__(		self							:     List[Any]     ,		__SCREAMING_SNAKE_CASE							:     Union[str, Any]):


           '''simple docstring'''

           return self.f_cost < other.f_cost


class     _A       :



       def __init__(		self							:     str     ,		__SCREAMING_SNAKE_CASE							:     tuple[int, int]     ,		__SCREAMING_SNAKE_CASE							:     tuple[int, int]):


           '''simple docstring'''

           __a						       =				Node(start[1]     ,		start[0]     ,		goal[1]     ,		goal[0]     ,		0     ,		__SCREAMING_SNAKE_CASE)
           __a						       =				Node(goal[1]     ,		goal[0]     ,		goal[1]     ,		goal[0]     ,		99_999     ,		__SCREAMING_SNAKE_CASE)

           __a						       =				[self.start]
           __a						       =				[]

           __a						       =				False



       def 		_lowerCamelCase			(		self							:     Tuple):


           '''simple docstring'''

           while self.open_nodes:
               # Open Nodes are sorted using __lt__
               self.open_nodes.sort()
               __a						       =				self.open_nodes.pop(0)

               if current_node.pos == self.target.pos:
                   __a						       =				True
                   return self.retrace_path(__SCREAMING_SNAKE_CASE)

               self.closed_nodes.append(__SCREAMING_SNAKE_CASE)
               __a						       =				self.get_successors(__SCREAMING_SNAKE_CASE)

               for child_node in successors:
                   if child_node in self.closed_nodes:
                       continue

                   if child_node not in self.open_nodes:
                       self.open_nodes.append(__SCREAMING_SNAKE_CASE)
                   else:
                       # retrieve the best current path
                       __a						       =				self.open_nodes.pop(self.open_nodes.index(__SCREAMING_SNAKE_CASE))

                       if child_node.g_cost < better_node.g_cost:
                           self.open_nodes.append(__SCREAMING_SNAKE_CASE)
                       else:
                           self.open_nodes.append(__SCREAMING_SNAKE_CASE)

           if not self.reached:
               return [self.start.pos]
           return None



       def 		_lowerCamelCase			(		self							:     str     ,		__SCREAMING_SNAKE_CASE							:     Node):


           '''simple docstring'''

           __a						       =				[]
           for action in delta:
               __a						       =				parent.pos_x + action[1]
               __a						       =				parent.pos_y + action[0]

               if not (0 <= pos_x <= len(grid[0]) - 1 and 0 <= pos_y <= len(__SCREAMING_SNAKE_CASE) - 1):
                   continue

               if grid[pos_y][pos_x] != 0:
                   continue

               successors.append(
                   Node(
                       __SCREAMING_SNAKE_CASE     ,		__SCREAMING_SNAKE_CASE     ,		self.target.pos_y     ,		self.target.pos_x     ,		parent.g_cost + 1     ,		__SCREAMING_SNAKE_CASE     ,		))
           return successors





       def 		_lowerCamelCase			(		self							:     List[str]     ,		__SCREAMING_SNAKE_CASE							:     Node | None):


           '''simple docstring'''

           __a						       =				node
           __a						       =				[]
           while current_node is not None:
               path.append((current_node.pos_y, current_node.pos_x))
               __a						       =				current_node.parent
           path.reverse()
           return path


if __name__ == "__main__":
 __snake_case						:List[str]      		=     (0, 0)
 __snake_case						:Any      		=     (len(grid) - 1, len(grid[0]) - 1)
 for elem in grid:
  print(elem)

 print('''------''')

 __snake_case						:int      		=     GreedyBestFirst(init, goal)
 __snake_case						:List[str]      		=     greedy_bf.search()
 if path:
  for pos_x, pos_y in path:
   __snake_case						:Optional[Any]      		=     2

  for elem in grid:
   print(elem)










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}.')





