






'''simple docstring'''





import multiprocessing
import os
from typing import BinaryIO, Optional, Union

import fsspec

from .. import Dataset, Features, NamedSplit, config
from ..formatting import query_table
from ..packaged_modules.json.json import Json
from ..utils import logging
from ..utils.typing import NestedDataStructureLike, PathLike
from .abc import AbstractDatasetReader







class 	_UpperCAmelCase  (  _A		):




      """simple docstring"""



      def __init__(   self    ,	_lowerCAmelCase    ,	_lowerCAmelCase = None    ,	_lowerCAmelCase = None    ,	_lowerCAmelCase = None    ,	_lowerCAmelCase = False    ,	_lowerCAmelCase = False    ,	_lowerCAmelCase = None    ,	_lowerCAmelCase = None    ,	**_lowerCAmelCase    ,	):



          '''simple docstring'''
          super().__init__(
              _lowerCAmelCase    ,	split=_lowerCAmelCase    ,	features=_lowerCAmelCase    ,	cache_dir=_lowerCAmelCase    ,	keep_in_memory=_lowerCAmelCase    ,	streaming=_lowerCAmelCase    ,	num_proc=_lowerCAmelCase    ,	**_lowerCAmelCase    ,	)
          lowerCAmelCase__   :Union[str, Any]      							=				field
          lowerCAmelCase__   :Dict      							=				path_or_paths if isinstance(_lowerCAmelCase    ,	_lowerCAmelCase		) else {self.split: path_or_paths}
          lowerCAmelCase__   :List[Any]      							=				Json(
              cache_dir=_lowerCAmelCase    ,	data_files=_lowerCAmelCase    ,	features=_lowerCAmelCase    ,	field=_lowerCAmelCase    ,	**_lowerCAmelCase    ,	)



      def 			snake_case_      (   self		):



          '''simple docstring'''
          # Build iterable dataset
          if self.streaming:
              lowerCAmelCase__   :int      							=				self.builder.as_streaming_dataset(split=self.split		)
          # Build regular (map-style) dataset
          else:
              lowerCAmelCase__   :Any      							=				None
              lowerCAmelCase__   :List[str]      							=				None
              lowerCAmelCase__   :str      							=				None
              lowerCAmelCase__   :Any      							=				None

              self.builder.download_and_prepare(
                  download_config=_lowerCAmelCase    ,	download_mode=_lowerCAmelCase    ,	verification_mode=_lowerCAmelCase    ,	base_path=_lowerCAmelCase    ,	num_proc=self.num_proc    ,	)
              lowerCAmelCase__   :str      							=				self.builder.as_dataset(
                  split=self.split    ,	verification_mode=_lowerCAmelCase    ,	in_memory=self.keep_in_memory		)
          return dataset







class 	_UpperCAmelCase  :




      """simple docstring"""



      def __init__(   self    ,	_lowerCAmelCase    ,	_lowerCAmelCase    ,	_lowerCAmelCase = None    ,	_lowerCAmelCase = None    ,	**_lowerCAmelCase    ,	):



          '''simple docstring'''
          if num_proc is not None and num_proc <= 0:
              raise ValueError(f'''num_proc {num_proc} must be an integer > 0.'''		)

          lowerCAmelCase__   :List[Any]      							=				dataset
          lowerCAmelCase__   :List[Any]      							=				path_or_buf
          lowerCAmelCase__   :str      							=				batch_size if batch_size else config.DEFAULT_MAX_BATCH_SIZE
          lowerCAmelCase__   :Dict      							=				num_proc
          lowerCAmelCase__   :Any      							=				"utf-8"
          lowerCAmelCase__   :Any      							=				to_json_kwargs
      def 			snake_case_      (   self		):



          '''simple docstring'''
          lowerCAmelCase__   :int      							=				self.to_json_kwargs.pop("path_or_buf"    ,	_lowerCAmelCase		)
          lowerCAmelCase__   :Union[str, Any]      							=				self.to_json_kwargs.pop("orient"    ,	"records"		)
          lowerCAmelCase__   :Union[str, Any]      							=				self.to_json_kwargs.pop("lines"    ,	True if orient == "records" else False		)
          lowerCAmelCase__   :Union[str, Any]      							=				self.to_json_kwargs.pop("index"    ,	False if orient in ["split", "table"] else True		)
          lowerCAmelCase__   :Tuple      							=				self.to_json_kwargs.pop("compression"    ,	_lowerCAmelCase		)

          if compression not in [None, "infer", "gzip", "bz2", "xz"]:
              raise NotImplementedError(f'''`datasets` currently does not support {compression} compression'''		)

          if isinstance(self.path_or_buf    ,	(str, bytes, os.PathLike)		):
              with fsspec.open(self.path_or_buf    ,	"wb"    ,	compression=_lowerCAmelCase		) as buffer:
                  lowerCAmelCase__   :Any      							=				self._write(file_obj=_lowerCAmelCase    ,	orient=_lowerCAmelCase    ,	lines=_lowerCAmelCase    ,	index=_lowerCAmelCase    ,	**self.to_json_kwargs		)
          else:
              if compression:
                  raise NotImplementedError(
                      f'''The compression parameter is not supported when writing to a buffer, but compression={compression}'''
                      " was passed. Please provide a local path instead."		)
              lowerCAmelCase__   :Tuple      							=				self._write(
                  file_obj=self.path_or_buf    ,	orient=_lowerCAmelCase    ,	lines=_lowerCAmelCase    ,	index=_lowerCAmelCase    ,	**self.to_json_kwargs		)
          return written
      def 			snake_case_      (   self    ,	_lowerCAmelCase		):



          '''simple docstring'''
          lowerCAmelCase__   :str      							=				args

          lowerCAmelCase__   :List[str]      							=				query_table(
              table=self.dataset.data    ,	key=slice(_lowerCAmelCase    ,	offset + self.batch_size		)    ,	indices=self.dataset._indices    ,	)
          lowerCAmelCase__   :str      							=				batch.to_pandas().to_json(
              path_or_buf=_lowerCAmelCase    ,	orient=_lowerCAmelCase    ,	lines=_lowerCAmelCase    ,	index=_lowerCAmelCase    ,	**_lowerCAmelCase		)
          if not json_str.endswith("\n"		):
              json_str += "\n"
          return json_str.encode(self.encoding		)



      def 			snake_case_      (   self    ,	_lowerCAmelCase    ,	_lowerCAmelCase    ,	_lowerCAmelCase    ,	_lowerCAmelCase    ,	**_lowerCAmelCase    ,	):



          '''simple docstring'''
          lowerCAmelCase__   :str      							=				0

          if self.num_proc is None or self.num_proc == 1:
              for offset in logging.tqdm(
                  range(0    ,	len(self.dataset		)    ,	self.batch_size		)    ,	unit="ba"    ,	disable=not logging.is_progress_bar_enabled()    ,	desc="Creating json from Arrow format"    ,	):
                  lowerCAmelCase__   :List[Any]      							=				self._batch_json((offset, orient, lines, index, to_json_kwargs)		)
                  written += file_obj.write(_lowerCAmelCase		)
          else:
              lowerCAmelCase__   :List[str]      							=				len(self.dataset		), self.batch_size
              with multiprocessing.Pool(self.num_proc		) as pool:
                  for json_str in logging.tqdm(
                      pool.imap(
                          self._batch_json    ,	[(offset, orient, lines, index, to_json_kwargs) for offset in range(0    ,	_lowerCAmelCase    ,	_lowerCAmelCase		)]    ,	)    ,	total=(num_rows // batch_size) + 1 if num_rows % batch_size else num_rows // batch_size    ,	unit="ba"    ,	disable=not logging.is_progress_bar_enabled()    ,	desc="Creating json from Arrow format"    ,	):
                      written += file_obj.write(_lowerCAmelCase		)

          return written











from __future__ import annotations

import math
from collections.abc import Callable


def 				snake_case__							(							UpperCAmelCase							:  Callable[[int | float], int | float]    ,			UpperCAmelCase							:  int | float    ,			UpperCAmelCase							:  int | float    ,			UpperCAmelCase							:  int = 1_0_0    ,			):
    lowerCAmelCase__   :int      							=				x_start
    lowerCAmelCase__   :int      							=				fnc(UpperCAmelCase       )
    lowerCAmelCase__   :List[Any]      							=				0.0

    for _ in range(UpperCAmelCase       ):
        # Approximates curve as a sequence of linear lines and sums their length
        lowerCAmelCase__   :Dict      							=				(x_end - x_start) / steps + xa
        lowerCAmelCase__   :Optional[Any]      							=				fnc(UpperCAmelCase       )
        length += math.hypot(xa - xa    ,			fxa - fxa       )

        # Increment step
        lowerCAmelCase__   :Union[str, Any]      							=				xa
        lowerCAmelCase__   :str      							=				fxa

    return length


if __name__ == "__main__":


 def 				snake_case__							(							UpperCAmelCase							:  int       ):
     return math.sin(1_0 * x       )

 print("""f(x) = sin(10 * x)""")
 print("""The length of the curve from x = -10 to x = 10 is:""")
 _a    :   Any        =			10
 while i <= 10_0000:
  print(f"""With {i} steps: {line_length(f, -10, 10, i)}""")
  i *= 10



