





"""simple docstring"""





from pathlib import PurePosixPath
from typing import Optional

import fsspec
from fsspec import AbstractFileSystem
from huggingface_hub.hf_api import DatasetInfo

from ..utils.file_utils import get_authentication_headers_for_url
from ..utils.hub import hf_hub_url
class 		SCREAMING_SNAKE_CASE_							(    snake_case__   ):
				"""simple docstring"""
				__snake_case   :       int	 =		""""""
				__snake_case   :       int	 =		"""hf-legacy"""  # "hf://"" is reserved for hffs




				def __init__(     self  :Dict						,    __lowercase  :Optional[DatasetInfo] = None						,    __lowercase  :Optional[str] = None						,    **__lowercase  :int						,    ):
											super().__init__(self						,    **__lowercase			)
											__lowerCamelCase      :      Optional[int]         =repo_info
											__lowerCamelCase      :      Optional[Any]         =token
											__lowerCamelCase      :      Any         =None




				def 					__lowercase  (     self  :Dict			):
											if self.dir_cache is None:
																		__lowerCamelCase      :      Tuple         ={}
																		for hf_file in self.repo_info.siblings:
																									# TODO(QL): add sizes
																									__lowerCamelCase      :      List[str]         ={
																									    '''name''': hf_file.rfilename,
																									    '''size''': None,
																									    '''type''': '''file''',
																									}
																									self.dir_cache.update(
																									    {
																									        str(__lowercase			): {'''name''': str(__lowercase			), '''size''': None, '''type''': '''directory'''}
																									        for d in list(PurePosixPath(hf_file.rfilename			).parents			)[:-1]
																									    }			)




				def 					__lowercase  (     self  :Optional[Any]						,    __lowercase  :str						,    __lowercase  :str = "rb"						,    **__lowercase  :Dict						,    ):
											if not isinstance(self.repo_info						,    __lowercase			):
																		raise NotImplementedError(f'Open is only implemented for dataset repositories, but got {self.repo_info}'			)
											__lowerCamelCase      :      Dict         =hf_hub_url(self.repo_info.id						,    __lowercase						,    revision=self.repo_info.sha			)
											return fsspec.open(
											    __lowercase						,    mode=__lowercase						,    headers=get_authentication_headers_for_url(__lowercase						,    use_auth_token=self.token			)						,    client_kwargs={'''trust_env''': True}						,    ).open()




				def 					__lowercase  (     self  :str						,    __lowercase  :Optional[Any]						,    **__lowercase  :Dict			):
											self._get_dirs()
											__lowerCamelCase      :      List[str]         =self._strip_protocol(__lowercase			)
											if path in self.dir_cache:
																		return self.dir_cache[path]
											else:
																		raise FileNotFoundError(__lowercase			)




				def 					__lowercase  (     self  :Any						,    __lowercase  :Dict						,    __lowercase  :List[str]=False						,    **__lowercase  :Dict			):
											self._get_dirs()
											__lowerCamelCase      :      Union[str, Any]         =PurePosixPath(path.strip('''/'''			)			)
											__lowerCamelCase      :      Any         ={}
											for p, f in self.dir_cache.items():
																		__lowerCamelCase      :      Tuple         =PurePosixPath(p.strip('''/'''			)			)
																		__lowerCamelCase      :      List[str]         =p.parent
																		if root == path:
																									__lowerCamelCase      :      Any         =f
											__lowerCamelCase      :      str         =list(paths.values()			)
											if detail:
																		return out
											else:
																		return sorted(f['''name'''] for f in out			)











"""simple docstring"""





def 				lowerCAmelCase_			(      SCREAMING_SNAKE_CASE       :							list    ,						SCREAMING_SNAKE_CASE       :							list    ,						SCREAMING_SNAKE_CASE       :							int   ):


							'''simple docstring'''







							__lowerCamelCase      :      Optional[Any]         =len(SCREAMING_SNAKE_CASE   )
							__lowerCamelCase      :      Union[str, Any]         =[[0] * n for i in range(SCREAMING_SNAKE_CASE   )]
							for i in range(SCREAMING_SNAKE_CASE   ):
														__lowerCamelCase      :      Union[str, Any]         =y_points[i]

							for i in range(2    ,						SCREAMING_SNAKE_CASE   ):
														for j in range(SCREAMING_SNAKE_CASE    ,						SCREAMING_SNAKE_CASE   ):
																					__lowerCamelCase      :      List[Any]         =(
																					    (xa - x_points[j - i + 1]) * q[j][i - 1]
																					    - (xa - x_points[j]) * q[j - 1][i - 1]
																					) / (x_points[j] - x_points[j - i + 1])

							return [q[n - 1][n - 1], q]


if __name__ == "__main__":
							import doctest

							doctest.testmod()




