




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 						A(		UpperCamelCase     ):



 '''simple docstring'''


 UpperCamelCase		     =		''''''
 UpperCamelCase		     =		'''hf-legacy'''  # "hf://"" is reserved for hffs

 def __init__(       self      :						str		,							A_      :						Optional[DatasetInfo] = None		,							A_      :						Optional[str] = None		,							**A_      :						Tuple		,							)     ->			int:

       """simple docstring"""






       super().__init__(self		,							**A_						)
       lowerCamelCase_	  =					repo_info
       lowerCamelCase_	  =					token
       lowerCamelCase_	  =					None

 def        a__				(       self      :						Dict						)     ->			Union[str, Any]:

       """simple docstring"""






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

 def        a__				(       self      :						str		,							A_      :						str		,							A_      :						str = "rb"		,							**A_      :						Any		,							)     ->			Union[str, Any]:

       """simple docstring"""






       if not isinstance(self.repo_info		,							A_						):
             raise NotImplementedError(f"""Open is only implemented for dataset repositories, but got {self.repo_info}"""						)
       lowerCamelCase_	  =					hf_hub_url(self.repo_info.id		,							A_		,							revision=self.repo_info.sha						)
       return fsspec.open(
           A_		,							mode=A_		,							headers=get_authentication_headers_for_url(A_		,							use_auth_token=self.token						)		,							client_kwargs={'trust_env': True}		,							).open()

 def        a__				(       self      :						Union[str, Any]		,							A_      :						str		,							**A_      :						Any						)     ->			str:

       """simple docstring"""






       self._get_dirs()
       lowerCamelCase_	  =					self._strip_protocol(A_						)
       if path in self.dir_cache:
             return self.dir_cache[path]
       else:
             raise FileNotFoundError(A_						)





 def        a__				(       self      :						Union[str, Any]		,							A_      :						Any		,							A_      :						Tuple=False		,							**A_      :						Optional[Any]						)     ->			str:

       """simple docstring"""






       self._get_dirs()
       lowerCamelCase_	  =					PurePosixPath(path.strip('/'						)						)
       lowerCamelCase_	  =					{}
       for p, f in self.dir_cache.items():
             lowerCamelCase_	  =					PurePosixPath(p.strip('/'						)						)
             lowerCamelCase_	  =					p.parent
             if root == path:
                   lowerCamelCase_	  =					f
       lowerCamelCase_	  =					list(paths.values()						)
       if detail:
             return out
       else:
             return sorted(f['name'] for f in out						)









lowerCamelCase       :	Dict									=     "Alexander Joslin"

import operator as op

from .stack import Stack

def     _SCREAMING_SNAKE_CASE    (							lowercase			: str  ):


      '''simple docstring'''



      lowerCamelCase_	  =					{'*': op.mul, '/': op.truediv, '+': op.add, '-': op.sub}

      lowerCamelCase_	  =					Stack()
      lowerCamelCase_	  =					Stack()

      for i in equation:
            if i.isdigit():
                  # RULE 1
                  operand_stack.push(int(lowercase  )  )
            elif i in operators:
                  # RULE 2
                  operator_stack.push(lowercase  )
            elif i == ")":
                  # RULE 4
                  lowerCamelCase_	  =					operator_stack.peek()
                  operator_stack.pop()
                  lowerCamelCase_	  =					operand_stack.peek()
                  operand_stack.pop()
                  lowerCamelCase_	  =					operand_stack.peek()
                  operand_stack.pop()

                  lowerCamelCase_	  =					operators[opr](lowercase			,							lowercase  )
                  operand_stack.push(lowercase  )

    # RULE 5
      return operand_stack.peek()


if __name__ == "__main__":
 lowerCamelCase       :	Any									=     "(5 + ((4 * 2) * (2 + 3)))"
 # answer = 45
 print(F"""{equation} = {dijkstras_two_stack_algorithm(equation)}""")



