



from pathlib import Path

import fire
from tqdm import tqdm



def    snake_case_				(    _SCREAMING_SNAKE_CASE="ro"  ,	_SCREAMING_SNAKE_CASE="en"  ,	_SCREAMING_SNAKE_CASE="wmt16"  ,	_SCREAMING_SNAKE_CASE=None   ):
	try:
		import datasets
	except (ModuleNotFoundError, ImportError):
		raise ImportError("run pip install datasets"   )
	__lowercase		       =			F"""{src_lang}-{tgt_lang}"""
	print(F"""Converting {dataset}-{pair}"""   )
	__lowercase		       =			datasets.load_dataset(_SCREAMING_SNAKE_CASE  ,	_SCREAMING_SNAKE_CASE   )
	if save_dir is None:
		__lowercase		       =			F"""{dataset}-{pair}"""
	__lowercase		       =			Path(_SCREAMING_SNAKE_CASE   )
	save_dir.mkdir(exist_ok=_SCREAMING_SNAKE_CASE   )

	for split in ds.keys():
		print(F"""Splitting {split} with {ds[split].num_rows} records"""   )

		# to save to val.source, val.target like summary datasets
		__lowercase		       =			"val" if split == "validation" else split
		__lowercase		       =			save_dir.joinpath(F"""{fn}.source"""   )
		__lowercase		       =			save_dir.joinpath(F"""{fn}.target"""   )
		__lowercase		       =			src_path.open("w+"   )
		__lowercase		       =			tgt_path.open("w+"   )

		# reader is the bottleneck so writing one record at a time doesn't slow things down
		for x in tqdm(ds[split]   ):
			__lowercase		       =			x["translation"]
			src_fp.write(ex[src_lang] + "\n"   )
			tgt_fp.write(ex[tgt_lang] + "\n"   )

	print(F"""Saved {dataset} dataset to {save_dir}"""   )


if __name__ == "__main__":
	fire.Fire(download_wmt_dataset)








from __future__ import annotations

from collections import namedtuple
from dataclasses import dataclass

@dataclass
class   _A   :


						'''simple docstring'''





						_snake_case			:     int
						_snake_case			:     TreeNode | None      							=      None
						_snake_case			:     TreeNode | None      							=      None

snake_case__					:     Dict    		=   namedtuple("""CoinsDistribResult""", """moves excess""")



def    snake_case_				(    _SCREAMING_SNAKE_CASE   ):

	if root is None:
		return 0

	# Validation
	def count_nodes(_SCREAMING_SNAKE_CASE   ) -> int:
		if node is None:
			return 0

		return count_nodes(node.left   ) + count_nodes(node.right   ) + 1

	def count_coins(_SCREAMING_SNAKE_CASE   ) -> int:
		if node is None:
			return 0

		return count_coins(node.left   ) + count_coins(node.right   ) + node.data

	if count_nodes(_SCREAMING_SNAKE_CASE   ) != count_coins(_SCREAMING_SNAKE_CASE   ):
		raise ValueError("The nodes number should be same as the number of coins"   )

	# Main calculation
	def get_distrib(_SCREAMING_SNAKE_CASE   ) -> CoinsDistribResult:

		if node is None:
			return CoinsDistribResult(0  ,	1   )

		__lowercase       ,    __lowercase		       =			get_distrib(node.left   )
		__lowercase       ,    __lowercase		       =			get_distrib(node.right   )

		__lowercase		       =			1 - left_distrib_excess
		__lowercase		       =			1 - right_distrib_excess

		__lowercase		       =			(
		    left_distrib_moves
		    + right_distrib_moves
		    + abs(_SCREAMING_SNAKE_CASE   )
		    + abs(_SCREAMING_SNAKE_CASE   )
		)
		__lowercase		       =			node.data - coins_to_left - coins_to_right

		return CoinsDistribResult(_SCREAMING_SNAKE_CASE  ,	_SCREAMING_SNAKE_CASE   )

	return get_distrib(_SCREAMING_SNAKE_CASE   )[0]


if __name__ == "__main__":
	import doctest

	doctest.testmod()



