


"""simple docstring"""




import os
from argparse import ArgumentParser
from typing import List

import torch.utils.data

from datasets import Dataset, IterableDataset
from datasets.distributed import split_dataset_by_node


UpperCAmelCase_				:			Union[str, Any]   =	4
UpperCAmelCase_				:			Any   =	3
class 			SCREAMING_SNAKE_CASE__  (    lowercase__      ):
      pass







def 	SCREAMING_SNAKE_CASE_						(      __A			:      Any    )     ->		List[str]:

       """simple docstring"""

       for shard in shards:
              for i in range(a__    ):
                     yield {"i": i, "shard": shard}







def 	SCREAMING_SNAKE_CASE_						(      )     ->		List[Any]:

       """simple docstring"""

       a_ :		Optional[int]							=  int(os.environ['RANK']    )
       a_ :		Optional[Any]							=  int(os.environ['WORLD_SIZE']    )

       a_ :		List[str]							=  ArgumentParser()
       parser.add_argument('--streaming'  ,   type=a__    )
       parser.add_argument('--local_rank'  ,   type=a__    )
       parser.add_argument('--num_workers'  ,   type=a__  ,   default=0    )
       a_ :		Optional[int]							=  parser.parse_args()
       a_ :		Optional[Any]							=  args.streaming
       a_ :		Tuple							=  args.num_workers

       a_ :		Optional[int]							=  {'shards': [F"""shard_{shard_idx}""" for shard_idx in range(a__    )]}
       a_ :		Tuple							=  IterableDataset.from_generator(a__  ,   gen_kwargs=a__    )
       if not streaming:
              a_ :		Any							=  Dataset.from_list(list(a__    )    )

       a_ :		Union[str, Any]							=  split_dataset_by_node(a__  ,   rank=a__  ,   world_size=a__    )
       a_ :		Optional[Any]							=  torch.utils.data.DataLoader(a__  ,   num_workers=a__    )

       a_ :		Optional[Any]							=  NUM_SHARDS * NUM_ITEMS_PER_SHARD
       a_ :		List[str]							=  full_size // world_size
       expected_local_size += int(rank < (full_size % world_size)    )

       a_ :		int							=  sum(1 for _ in dataloader    )
       if local_size != expected_local_size:
              raise FailedTestError(F"""local_size {local_size} != expected_local_size {expected_local_size}"""    )


if __name__ == "__main__":
   main()






from string import ascii_uppercase

UpperCAmelCase_				:			Dict   =	{char: i for i, char in enumerate(ascii_uppercase)}
UpperCAmelCase_				:			Optional[int]   =	dict(enumerate(ascii_uppercase))







def 	SCREAMING_SNAKE_CASE_						(      __A			:      str  ,   __A			:      str    )     ->		str:

       """simple docstring"""

       a_ :		Tuple							=  len(__A    )
       a_ :		int							=  0
       while True:
              if x == i:
                     a_ :		Tuple							=  0
              if len(__A    ) == len(__A    ):
                     break
              key += key[i]
              i += 1
       return key







def 	SCREAMING_SNAKE_CASE_						(      __A			:      str  ,   __A			:      str    )     ->		str:

       """simple docstring"""

       a_ :		Optional[int]							=  ''
       a_ :		Any							=  0
       for letter in message:
              if letter == " ":
                     cipher_text += " "
              else:
                     a_ :		Optional[Any]							=  (dicta[letter] - dicta[key_new[i]]) % 26
                     i += 1
                     cipher_text += dicta[x]
       return cipher_text







def 	SCREAMING_SNAKE_CASE_						(      __A			:      str  ,   __A			:      str    )     ->		str:

       """simple docstring"""

       a_ :		Any							=  ''
       a_ :		Optional[Any]							=  0
       for letter in cipher_text:
              if letter == " ":
                     or_txt += " "
              else:
                     a_ :		Union[str, Any]							=  (dicta[letter] + dicta[key_new[i]] + 26) % 26
                     i += 1
                     or_txt += dicta[x]
       return or_txt







def 	SCREAMING_SNAKE_CASE_						(      )     ->		None:

       """simple docstring"""

       a_ :		Tuple							=  'THE GERMAN ATTACK'
       a_ :		Dict							=  'SECRET'
       a_ :		Optional[Any]							=  generate_key(__A  ,   __A    )
       a_ :		Union[str, Any]							=  cipher_text(__A  ,   __A    )
       print(F"""Encrypted Text = {s}"""    )
       print(F"""Original Text = {original_text(__A  ,   __A    )}"""    )


if __name__ == "__main__":
   import doctest

   doctest.testmod()
   main()


