





'''simple docstring'''






import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer






def      __A						(							a_						:  List[Any]      ,a_						:  str      ,a_						:  List[Any]      ,a_						:  Optional[int]=1_0_2_4	):
  lowerCAmelCase	,		lowerCAmelCase     :    Tuple						=   [], []

  lowerCAmelCase     :    Tuple						=   list(zip(__snake_case      ,__snake_case	)	)
  lowerCAmelCase	,		lowerCAmelCase     :    Optional[Any]						=   sorted_examples[0]

  def is_too_big(a_						:  int	):
    return tok(__snake_case      ,return_tensors="pt"	).input_ids.shape[1] > max_tokens

  for src, tgt in tqdm(sorted_examples[1:]	):
    lowerCAmelCase     :    Union[str, Any]						=   new_src + " " + src
    lowerCAmelCase     :    Optional[int]						=   new_tgt + " " + tgt
    if is_too_big(__snake_case	) or is_too_big(__snake_case	):  # cant fit, finalize example
      finished_src.append(__snake_case	)
      finished_tgt.append(__snake_case	)
      lowerCAmelCase	,		lowerCAmelCase     :    str						=   src, tgt
    else:  # can fit, keep adding
      lowerCAmelCase	,		lowerCAmelCase     :    List[Any]						=   cand_src, cand_tgt

    # cleanup
  if new_src:
    assert new_tgt
    finished_src.append(__snake_case	)
    finished_tgt.append(__snake_case	)
  return finished_src, finished_tgt






def      __A						(							a_						:  str      ,a_						:  Optional[Any]      ,a_						:  Optional[Any]      ,a_						:  List[str]	):
  lowerCAmelCase     :    Tuple						=   Path(__snake_case	)
  save_path.mkdir(exist_ok=__snake_case	)
  for split in ["train"]:
    lowerCAmelCase	,		lowerCAmelCase     :    Optional[int]						=   data_dir / f'''{split}.source''', data_dir / f'''{split}.target'''
    lowerCAmelCase     :    List[str]						=   [x.rstrip() for x in Path(__snake_case	).open().readlines()]
    lowerCAmelCase     :    int						=   [x.rstrip() for x in Path(__snake_case	).open().readlines()]
    lowerCAmelCase	,		lowerCAmelCase     :    Optional[Any]						=   pack_examples(__snake_case      ,__snake_case      ,__snake_case      ,__snake_case	)
    print(f'''packed {split} split from {len(__snake_case	)} examples -> {len(__snake_case	)}.'''	)
    Path(save_path / f'''{split}.source'''	).open("w"	).write("\n".join(__snake_case	)	)
    Path(save_path / f'''{split}.target'''	).open("w"	).write("\n".join(__snake_case	)	)
  for split in ["val", "test"]:
    lowerCAmelCase	,		lowerCAmelCase     :    Dict						=   data_dir / f'''{split}.source''', data_dir / f'''{split}.target'''
    shutil.copyfile(__snake_case      ,save_path / f'''{split}.source'''	)
    shutil.copyfile(__snake_case      ,save_path / f'''{split}.target'''	)






def      __A						(							):
  lowerCAmelCase     :    List[Any]						=   argparse.ArgumentParser()
  parser.add_argument("--tok_name"      ,type=__snake_case      ,help="like facebook/bart-large-cnn,t5-base, etc."	)
  parser.add_argument("--max_seq_len"      ,type=__snake_case      ,default=1_2_8	)
  parser.add_argument("--data_dir"      ,type=__snake_case	)
  parser.add_argument("--save_path"      ,type=__snake_case	)
  lowerCAmelCase     :    str						=   parser.parse_args()
  lowerCAmelCase     :    Dict						=   AutoTokenizer.from_pretrained(args.tok_name	)
  return pack_data_dir(__snake_case      ,Path(args.data_dir	)      ,args.max_seq_len      ,args.save_path	)


if __name__ == "__main__":
     packer_cli()










'''simple docstring'''






def      __A						(							a_						:  int      ,a_						:  int	):
		return abs(a_	) if a == 0 else greatest_common_divisor(b % a      ,a_	)






def      __A						(							a_						:  int      ,a_						:  int	):
		while y:  # --> when y=0 then loop will terminate and return x as final GCD.
				lowerCAmelCase	,		lowerCAmelCase     :    Tuple						=   y, x % y
		return abs(a_	)






def      __A						(							):
		try:
				lowerCAmelCase     :    Tuple						=   input("Enter two integers separated by comma (,): "	).split(","	)
				lowerCAmelCase     :    Tuple						=   int(nums[0]	)
				lowerCAmelCase     :    Tuple						=   int(nums[1]	)
				print(
				    f'''greatest_common_divisor({num_a}, {num_a}) = '''
				    f'''{greatest_common_divisor(a_      ,a_	)}'''	)
				print(f'''By iterative gcd({num_a}, {num_a}) = {gcd_by_iterative(a_      ,a_	)}'''	)
		except (IndexError, UnboundLocalError, ValueError):
				print("Wrong input"	)


if __name__ == "__main__":
					main()



