

import os
from typing import Optional

import fsspec
from fsspec.archive import AbstractArchiveFileSystem
from fsspec.utils import DEFAULT_BLOCK_SIZE







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : List[str]			       =""""""
  UpperCAmelCase__      : str			       =(
      None  # protocol passed in prefix to the url. ex: "gzip", for gzip://file.txt::http://foo.bar/file.txt.gz
  )
  UpperCAmelCase__      : str			       =None  # compression type in fsspec. ex: "gzip"
  UpperCAmelCase__      : str			       =None  # extension of the filename to strip. ex: "".gz" to get file.txt from file.txt.gz


  def __init__(			self    : Tuple				,				UpperCAmelCase__    : str = ""				,				UpperCAmelCase__    : Optional[str] = None				,				UpperCAmelCase__    : Optional[dict] = None				,				**UpperCAmelCase__    : Dict		)					->Optional[Any]:
        """simple docstring"""







        super().__init__(self				,				**UpperCAmelCase__		)
        # always open as "rb" since fsspec can then use the TextIOWrapper to make it work for "r" mode
        SCREAMING_SNAKE_CASE :      Union[str, Any]       =   fsspec.open(
            UpperCAmelCase__				,				mode="""rb"""				,				protocol=UpperCAmelCase__				,				compression=self.compression				,				client_kwargs={
                """requote_redirect_url""": False,  # see https://github.com/huggingface/datasets/pull/5459
                """trust_env""": True,  # Enable reading proxy env variables.
                **(target_options or {}).pop("""client_kwargs"""				,				{}		),  # To avoid issues if it was already passed.
            }				,				**(target_options or {})				,				)
        SCREAMING_SNAKE_CASE :      Tuple       =   os.path.basename(self.file.path.split("""::"""		)[0]		)
        SCREAMING_SNAKE_CASE :      List[Any]       =   (
            self.compressed_name[: self.compressed_name.rindex("""."""		)]
            if """.""" in self.compressed_name
            else self.compressed_name
        )
        SCREAMING_SNAKE_CASE :      Any       =   None


  @classmethod
  def  _lowercase      (			cls    : Any				,				UpperCAmelCase__    : Optional[Any]		)					->Optional[int]:
        """simple docstring"""







        return super()._strip_protocol(UpperCAmelCase__		).lstrip("""/"""		)


  def  _lowercase      (			self    : List[Any]		)					->int:
        """simple docstring"""







        if self.dir_cache is None:
              SCREAMING_SNAKE_CASE :      Union[str, Any]       =   {**self.file.fs.info(self.file.path		), """name""": self.uncompressed_name}
              SCREAMING_SNAKE_CASE :      Optional[Any]       =   {f["""name"""]: f}


  def  _lowercase      (			self    : List[Any]				,				UpperCAmelCase__    : str		)					->List[Any]:
        """simple docstring"""







        return self.file.open().read()




  def  _lowercase      (			self    : Union[str, Any]				,				UpperCAmelCase__    : str				,				UpperCAmelCase__    : str = "rb"				,				UpperCAmelCase__    : int=None				,				UpperCAmelCase__    : Optional[int]=True				,				UpperCAmelCase__    : Any=None				,				**UpperCAmelCase__    : Union[str, Any]				,				)					->int:
        """simple docstring"""







        SCREAMING_SNAKE_CASE :      Optional[int]       =   self._strip_protocol(UpperCAmelCase__		)
        if mode != "rb":
              raise ValueError(f"Tried to read with mode {mode} on file {self.file.path} opened with mode 'rb'"		)
        return self.file.open()







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : Union[str, Any]			       ="""bz2"""
  UpperCAmelCase__      : str			       ="""bz2"""
  UpperCAmelCase__      : List[str]			       =""".bz2"""







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : str			       ="""gzip"""
  UpperCAmelCase__      : Optional[Any]			       ="""gzip"""
  UpperCAmelCase__      : Tuple			       =""".gz"""







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : str			       ="""lz4"""
  UpperCAmelCase__      : Tuple			       ="""lz4"""
  UpperCAmelCase__      : Optional[Any]			       =""".lz4"""







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : Union[str, Any]			       ="""xz"""
  UpperCAmelCase__      : str			       ="""xz"""
  UpperCAmelCase__      : Tuple			       =""".xz"""







class        a__       (   UpperCAmelCase       ):







  """simple docstring"""




  UpperCAmelCase__      : Union[str, Any]			       ="""zstd"""
  UpperCAmelCase__      : Optional[Any]			       ="""zstd"""
  UpperCAmelCase__      : List[str]			       =""".zst"""


  def __init__(			self    : Optional[Any]				,				UpperCAmelCase__    : str				,				UpperCAmelCase__    : str = "rb"				,				UpperCAmelCase__    : Optional[str] = None				,				UpperCAmelCase__    : Optional[dict] = None				,				UpperCAmelCase__    : int = DEFAULT_BLOCK_SIZE				,				**UpperCAmelCase__    : Tuple				,				)					->str:
        """simple docstring"""







        super().__init__(
            fo=UpperCAmelCase__				,				mode=UpperCAmelCase__				,				target_protocol=UpperCAmelCase__				,				target_options=UpperCAmelCase__				,				block_size=UpperCAmelCase__				,				**UpperCAmelCase__				,				)
        # We need to wrap the zstd decompressor to avoid this error in fsspec==2021.7.0 and zstandard==0.15.2:
        #
        # File "/Users/user/.virtualenvs/hf-datasets/lib/python3.7/site-packages/fsspec/core.py", line 145, in open
        #     out.close = close
        # AttributeError: 'zstd.ZstdDecompressionReader' object attribute 'close' is read-only
        #
        # see https://github.com/intake/filesystem_spec/issues/725
        SCREAMING_SNAKE_CASE :      int       =   self.file.__enter__







        class        a__       :







          """simple docstring"""




          def __init__(			self    : Optional[Any]				,				UpperCAmelCase__    : Optional[int]		)					->Optional[int]:
                """simple docstring"""







                SCREAMING_SNAKE_CASE :      Dict       =   file_


          def __enter__(			self    : int		)					->Any:
                """simple docstring"""







                self._file.__enter__()
                return self


          def __exit__(			self    : Optional[int]				,				*UpperCAmelCase__    : Any				,				**UpperCAmelCase__    : str		)					->Optional[int]:
                """simple docstring"""







                self._file.__exit__(*UpperCAmelCase__				,				**UpperCAmelCase__		)


          def __iter__(			self    : Union[str, Any]		)					->str:
                """simple docstring"""







                return iter(self._file		)


          def  _lowercase      (			self    : Optional[int]		)					->Tuple:
                """simple docstring"""







                return next(self._file		)




          def __getattr__(			self    : str				,				UpperCAmelCase__    : Tuple		)					->List[str]:
                """simple docstring"""







                return getattr(self._file				,				UpperCAmelCase__		)

        def fixed_enter(*UpperCAmelCase__    : Any				,				**UpperCAmelCase__    : str		):
              return WrappedFile(_enter(*UpperCAmelCase__				,				**UpperCAmelCase__		)		)

        SCREAMING_SNAKE_CASE :      Union[str, Any]       =   fixed_enter







from __future__ import annotations

import numpy as np






def 					__lowercase      (     _A			)     ->						tuple[np.ndarray, np.ndarray]:
      SCREAMING_SNAKE_CASE     ,	SCREAMING_SNAKE_CASE :      Dict       =   np.shape(_A			)
      if rows != columns:
            SCREAMING_SNAKE_CASE :      int       =   (
                """'table' has to be of square shaped array but got a """
                F"{rows}x{columns} array:\n{table}"
            )
            raise ValueError(_A			)

      SCREAMING_SNAKE_CASE :      Union[str, Any]       =   np.zeros((rows, columns)			)
      SCREAMING_SNAKE_CASE :      Optional[Any]       =   np.zeros((rows, columns)			)
      for i in range(_A			):
            for j in range(_A			):
                  SCREAMING_SNAKE_CASE :      Tuple       =   sum(lower[i][k] * upper[k][j] for k in range(_A			)			)
                  if upper[j][j] == 0:
                        raise ArithmeticError("""No LU decomposition exists"""			)
                  SCREAMING_SNAKE_CASE :      Union[str, Any]       =   (table[i][j] - total) / upper[j][j]
            SCREAMING_SNAKE_CASE :      Optional[Any]       =   1
            for j in range(_A						,    _A			):
                  SCREAMING_SNAKE_CASE :      List[str]       =   sum(lower[i][k] * upper[k][j] for k in range(_A			)			)
                  SCREAMING_SNAKE_CASE :      Optional[Any]       =   table[i][j] - total
      return lower, upper


if __name__ == "__main__":
  import doctest

  doctest.testmod()




