





import itertools
from dataclasses import dataclass
from typing import Optional

import pyarrow as pa

import datasets
from datasets.table import table_cast


__lowerCAmelCase     =			datasets.utils.logging.get_logger(__name__)




@dataclass
class   _UpperCAmelCase	(   datasets.BuilderConfig					):
					__A          =   None




class   _UpperCAmelCase	(   datasets.ArrowBasedBuilder					):
					__A          =   ArrowConfig




					def 	snake_case_		(						self       )						->  Union[str, Any]:
							return datasets.DatasetInfo(features=self.config.features       )




					def 	snake_case_		(						self    ,      __lowerCAmelCase       )						->  Dict:
							if not self.config.data_files:
									raise ValueError(F"""At least one data file must be specified, but got data_files={self.config.data_files}"""       )
							UpperCamelCase__         =	dl_manager.download_and_extract(self.config.data_files       )
							if isinstance(__lowerCAmelCase    ,      (str, list, tuple)       ):
									UpperCamelCase__         =	data_files
									if isinstance(__lowerCAmelCase    ,      __lowerCAmelCase       ):
											UpperCamelCase__         =	[files]
									# Use `dl_manager.iter_files` to skip hidden files in an extracted archive
									UpperCamelCase__         =	[dl_manager.iter_files(__lowerCAmelCase       ) for file in files]
									return [datasets.SplitGenerator(name=datasets.Split.TRAIN    ,      gen_kwargs={"""files""": files}       )]
							UpperCamelCase__         =	[]
							for split_name, files in data_files.items():
									if isinstance(__lowerCAmelCase    ,      __lowerCAmelCase       ):
											UpperCamelCase__         =	[files]
									# Use `dl_manager.iter_files` to skip hidden files in an extracted archive
									UpperCamelCase__         =	[dl_manager.iter_files(__lowerCAmelCase       ) for file in files]
									# Infer features is they are stoed in the arrow schema
									if self.info.features is None:
											for file in itertools.chain.from_iterable(__lowerCAmelCase       ):
													with open(__lowerCAmelCase    ,      """rb"""       ) as f:
															UpperCamelCase__         =	datasets.Features.from_arrow_schema(pa.ipc.open_stream(__lowerCAmelCase       ).schema       )
													break
									splits.append(datasets.SplitGenerator(name=__lowerCAmelCase    ,      gen_kwargs={"""files""": files}       )       )
							return splits




					def 	snake_case_		(						self    ,      __lowerCAmelCase       )						->  pa.Table:
							if self.info.features is not None:
									# more expensive cast to support nested features with keys in a different order
									# allows str <-> int/float or str to Audio for example
									UpperCamelCase__         =	table_cast(__lowerCAmelCase    ,      self.info.features.arrow_schema       )
							return pa_table




					def 	snake_case_		(						self    ,      __lowerCAmelCase       )						->  List[Any]:
							for file_idx, file in enumerate(itertools.chain.from_iterable(__lowerCAmelCase       )       ):
									with open(__lowerCAmelCase    ,      """rb"""       ) as f:
											try:
													for batch_idx, record_batch in enumerate(pa.ipc.open_stream(__lowerCAmelCase       )       ):
															UpperCamelCase__         =	pa.Table.from_batches([record_batch]       )
															# Uncomment for debugging (will print the Arrow table size and elements)
															# logger.warning(f"pa_table: {pa_table} num rows: {pa_table.num_rows}")
															# logger.warning('\n'.join(str(pa_table.slice(i, 1).to_pydict()) for i in range(pa_table.num_rows)))
															yield F"""{file_idx}_{batch_idx}""", self._cast_table(__lowerCAmelCase       )
											except ValueError as e:
													logger.error(F"""Failed to read file '{file}' with error {type(__lowerCAmelCase       )}: {e}"""       )
													raise












def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 9 / 5) + 3_2 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(float(_lowercase       ) + 273.15 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 9 / 5) + 491.67 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) - 3_2) * 5 / 9 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(((float(_lowercase       ) - 3_2) * 5 / 9) + 273.15 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(float(_lowercase       ) + 459.67 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(float(_lowercase       ) - 273.15 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(((float(_lowercase       ) - 273.15) * 9 / 5) + 3_2 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 9 / 5) ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) - 491.67) * 5 / 9 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round(float(_lowercase       ) - 459.67 ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 5 / 9) ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 1.25 + 273.15) ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 2.25 + 3_2) ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 1.25) ,						_lowercase       )

def     a						(      _lowercase   :     float ,						_lowercase   :     int = 2       )     ->float:
		return round((float(_lowercase       ) * 2.25 + 3_2 + 459.67) ,						_lowercase       )


if __name__ == "__main__":
				import doctest

				doctest.testmod()





