



import logging
import os
import sys
from dataclasses import dataclass, field
from typing import Optional

import transformers
from transformers import (
    AutoConfig,
    AutoModelForQuestionAnswering,
    AutoTokenizer,
    DataCollatorWithPadding,
    HfArgumentParser,
    SquadDataset,
    Trainer,
    TrainingArguments,
)
from transformers import SquadDataTrainingArguments as DataTrainingArguments
from transformers.trainer_utils import is_main_process


__lowerCamelCase							= logging.getLogger(__name__)






@dataclass
class 						UpperCAmelCase	:
   A__      :	str		  =  field(
       metadata={"help": "Path to pretrained model or model identifier from huggingface.co/models"}				)
   A__      :	Optional[str]		  =  field(
       default=A_ ,metadata={"help": "Pretrained config name or path if not the same as model_name"}				)
   A__      :	Optional[str]		  =  field(
       default=A_ ,metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}				)
   A__      :	bool		  =  field(default=A_ ,metadata={"help": "Set this flag to use fast tokenization."}				)
   # If you want to tweak more attributes on your tokenizer, you should do it in a distinct script,
   # or just modify its tokenizer_config.json.
   A__      :	Optional[str]		  =  field(
       default=A_ ,metadata={"help": "Where do you want to store the pretrained models downloaded from huggingface.co"} ,)



def     UpperCamelCase      (					):
       # See all possible arguments in src/transformers/training_args.py
       # or by passing the --help flag to this script.
       # We now keep distinct sets of args, for a cleaner separation of concerns.

       snake_case :     List[str]           =   HfArgumentParser((ModelArguments, DataTrainingArguments, TrainingArguments)					)

       if len(sys.argv					) == 2 and sys.argv[1].endswith(".json"					):
              # If we pass only one argument to the script and it's the path to a json file,
              # let's parse it to get our arguments.
              snake_case :     List[Any]           =   parser.parse_json_file(json_file=os.path.abspath(sys.argv[1]					)					)
       else:
              snake_case :     int           =   parser.parse_args_into_dataclasses()

       if (
           os.path.exists(training_args.output_dir					)
           and os.listdir(training_args.output_dir					)
           and training_args.do_train
           and not training_args.overwrite_output_dir
       ):
              raise ValueError(
                  f"""Output directory ({training_args.output_dir}) already exists and is not empty. Use"""
                  " --overwrite_output_dir to overcome."					)

       # Setup logging
       logging.basicConfig(
           format="%(asctime)s - %(levelname)s - %(name)s - %(message)s"       ,      datefmt="%m/%d/%Y %H:%M:%S"       ,      level=logging.INFO if training_args.local_rank in [-1, 0] else logging.WARN       ,      )
       logger.warning(
           "Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s"       ,      training_args.local_rank       ,      training_args.device       ,      training_args.n_gpu       ,      bool(training_args.local_rank != -1					)       ,      training_args.fpaa       ,      )
       # Set the verbosity to info of the Transformers logger (on main process only):
       if is_main_process(training_args.local_rank					):
              transformers.utils.logging.set_verbosity_info()
              transformers.utils.logging.enable_default_handler()
              transformers.utils.logging.enable_explicit_format()
       logger.info("Training/evaluation parameters %s"       ,      __lowerCamelCase					)

       # Prepare Question-Answering task
       # Load pretrained model and tokenizer
       #
       # Distributed training:
       # The .from_pretrained methods guarantee that only one local process can concurrently
       # download model & vocab.

       snake_case :     Tuple           =   AutoConfig.from_pretrained(
           model_args.config_name if model_args.config_name else model_args.model_name_or_path       ,      cache_dir=model_args.cache_dir       ,      )
       snake_case :     Dict           =   AutoTokenizer.from_pretrained(
           model_args.tokenizer_name if model_args.tokenizer_name else model_args.model_name_or_path       ,      cache_dir=model_args.cache_dir       ,      use_fast=__lowerCamelCase       ,      )
       snake_case :     Dict           =   AutoModelForQuestionAnswering.from_pretrained(
           model_args.model_name_or_path       ,      from_tf=bool(".ckpt" in model_args.model_name_or_path					)       ,      config=__lowerCamelCase       ,      cache_dir=model_args.cache_dir       ,      )

       # Get datasets
       snake_case :     List[str]           =   hasattr(model.config       ,      "lang2id"					)
       snake_case :     Optional[Any]           =   (
           SquadDataset(
               __lowerCamelCase       ,      tokenizer=__lowerCamelCase       ,      is_language_sensitive=__lowerCamelCase       ,      cache_dir=model_args.cache_dir					)
           if training_args.do_train
           else None
       )
       snake_case :     List[str]           =   (
           SquadDataset(
               __lowerCamelCase       ,      tokenizer=__lowerCamelCase       ,      mode="dev"       ,      is_language_sensitive=__lowerCamelCase       ,      cache_dir=model_args.cache_dir       ,      )
           if training_args.do_eval
           else None
       )

       # Data collator
       snake_case :     List[Any]           =   DataCollatorWithPadding(__lowerCamelCase       ,      pad_to_multiple_of=8					) if training_args.fpaa else None

       # Initialize our Trainer
       snake_case :     List[str]           =   Trainer(
           model=__lowerCamelCase       ,      args=__lowerCamelCase       ,      train_dataset=__lowerCamelCase       ,      eval_dataset=__lowerCamelCase       ,      data_collator=__lowerCamelCase       ,      )

       # Training
       if training_args.do_train:
              trainer.train(
                  model_path=model_args.model_name_or_path if os.path.isdir(model_args.model_name_or_path					) else None					)
              trainer.save_model()
              # For convenience, we also re-save the tokenizer to the same directory,
              # so that you can share your model easily on huggingface.co/models =)
              if trainer.is_world_master():
                     tokenizer.save_pretrained(training_args.output_dir					)


def     UpperCamelCase      (					__lowerCamelCase  :				Any					):
       # For xla_spawn (TPUs)
       main()


if __name__ == "__main__":
   main()







import concurrent.futures
import json
import os
import shutil
import tempfile
import unittest

from transformers import AutoTokenizer, PreTrainedTokenizerFast
from transformers.testing_utils import require_tokenizers

from ..test_tokenization_common import TokenizerTesterMixin






@require_tokenizers
class 						UpperCAmelCase	(		A_ ,unittest.TestCase				):
   A__      :	Dict		  =  PreTrainedTokenizerFast
   A__      :	str		  =  False
   A__      :	List[Any]		  =  True
   A__      :	List[str]		  =  "tokenizer_file"



   def        _SCREAMING_SNAKE_CASE     (self	:      Dict				)	->			Union[str, Any]:


          '''simple docstring'''


          snake_case :     Union[str, Any]           =   False  # because we don't have pretrained_vocab_files_map
          super().setUp()
          snake_case :     Optional[int]           =   True

          snake_case :     List[str]           =   ["robot-test/dummy-tokenizer-fast", "robot-test/dummy-tokenizer-wordlevel"]
          snake_case :     Optional[Any]           =   "SaulLu/dummy-tokenizer-bytelevel-bpe"

          # Inclusion of 2 tokenizers to test different types of models (Unigram and WordLevel for the moment)
          snake_case :     int           =   [(PreTrainedTokenizerFast, model_path, {}) for model_path in model_paths]

          snake_case :     List[Any]           =   PreTrainedTokenizerFast.from_pretrained(model_paths[0]				)
          tokenizer.save_pretrained(self.tmpdirname				)



   def        _SCREAMING_SNAKE_CASE     (self	:      Dict				)	->			int:


          '''simple docstring'''


          pass



   def        _SCREAMING_SNAKE_CASE     (self	:      Any				)	->			int:


          '''simple docstring'''


          pass



   def        _SCREAMING_SNAKE_CASE     (self	:      Any				)	->			Union[str, Any]:


          '''simple docstring'''


          pass



   def        _SCREAMING_SNAKE_CASE     (self	:      Tuple				)	->			List[str]:


          '''simple docstring'''


          pass



   def        _SCREAMING_SNAKE_CASE     (self	:      Optional[int]				)	->			List[str]:


          '''simple docstring'''


          snake_case :     Optional[int]           =   self.tmpdirname
          # Here we want to test the 2 available tokenizers that use 2 different types of models: Unigram and WordLevel.
          for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
                 with self.subTest(f"""{tokenizer.__class__.__name__} ({pretrained_name})"""				):
                        try:
                               snake_case :     Any           =   tempfile.mkdtemp()
                               snake_case :     int           =   self.rust_tokenizer_class.from_pretrained(snake_case__					,		**snake_case__				)

                               tokenizer.save_pretrained(self.tmpdirname				)
                               super().test_training_new_tokenizer()
                        finally:
                               # Even if the test fails, we must be sure that the folder is deleted and that the default tokenizer
                               # is restored
                               shutil.rmtree(self.tmpdirname				)
                               snake_case :     int           =   tmpdirname_orig



   def        _SCREAMING_SNAKE_CASE     (self	:      Tuple				)	->			Dict:


          '''simple docstring'''


          snake_case :     Optional[int]           =   self.tmpdirname
          # Here we want to test the 2 available tokenizers that use 2 different types of models: Unigram and WordLevel.
          for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
                 with self.subTest(f"""{tokenizer.__class__.__name__} ({pretrained_name})"""				):
                        try:
                               snake_case :     Union[str, Any]           =   tempfile.mkdtemp()
                               snake_case :     str           =   self.rust_tokenizer_class.from_pretrained(snake_case__					,		**snake_case__				)

                               tokenizer.save_pretrained(self.tmpdirname				)
                               super().test_training_new_tokenizer_with_special_tokens_change()
                        finally:
                               # Even if the test fails, we must be sure that the folder is deleted and that the default tokenizer
                               # is restored
                               shutil.rmtree(self.tmpdirname				)
                               snake_case :     Dict           =   tmpdirname_orig



   def        _SCREAMING_SNAKE_CASE     (self	:      int				)	->			Union[str, Any]:


          '''simple docstring'''


          snake_case :     int           =   self.rust_tokenizer_class.from_pretrained(self.bytelevel_bpe_model_name				)

          snake_case :     int           =   ("a" for _ in range(10_00				))
          snake_case :     Optional[int]           =   tokenizer.train_new_from_iterator(text_iterator=snake_case__					,		length=10_00					,		vocab_size=50				)

          snake_case :     str           =   new_tokenizer.encode("a🤗"				)
          self.assertEqual(snake_case__					,		[64, 1_72, 2_53, 97, 2_45]				)






@require_tokenizers
class 						UpperCAmelCase	(		unittest.TestCase				):



   def        _SCREAMING_SNAKE_CASE     (self	:      Union[str, Any]				)	->			List[str]:


          '''simple docstring'''


          snake_case :     List[str]           =   AutoTokenizer.from_pretrained("bert-base-cased"				)
          snake_case :     Union[str, Any]           =   json.loads(tokenizer._tokenizer.to_str()				)
          snake_case :     Tuple           =   len(snake_case__				)

          with tempfile.TemporaryDirectory() as tmp_dir:
                 # Hack to save this in the tokenizer_config.json
                 snake_case :     List[str]           =   ["tokenizer.4.0.0.json"]
                 tokenizer.save_pretrained(snake_case__				)
                 json.dump(snake_case__					,		open(os.path.join(snake_case__					,		"tokenizer.4.0.0.json"				)					,		"w"				)				)

                 # This should pick the new tokenizer file as the version of Transformers is > 4.0.0
                 snake_case :     Optional[Any]           =   AutoTokenizer.from_pretrained(snake_case__				)
                 self.assertEqual(len(snake_case__				)					,		len(snake_case__				) + 1				)
                 snake_case :     Union[str, Any]           =   json.loads(new_tokenizer._tokenizer.to_str()				)
                 self.assertIn("huggingface"					,		json_tokenizer["model"]["vocab"]				)

                 # Will need to be adjusted if we reach v42 and this test is still here.
                 # Should pick the old tokenizer file as the version of Transformers is < 4.0.0
                 shutil.move(os.path.join(snake_case__					,		"tokenizer.4.0.0.json"				)					,		os.path.join(snake_case__					,		"tokenizer.42.0.0.json"				)				)
                 snake_case :     Optional[Any]           =   ["tokenizer.42.0.0.json"]
                 tokenizer.save_pretrained(snake_case__				)
                 snake_case :     Dict           =   AutoTokenizer.from_pretrained(snake_case__				)
                 self.assertEqual(len(snake_case__				)					,		len(snake_case__				)				)
                 snake_case :     Optional[int]           =   json.loads(new_tokenizer._tokenizer.to_str()				)
                 self.assertNotIn("huggingface"					,		json_tokenizer["model"]["vocab"]				)



   def        _SCREAMING_SNAKE_CASE     (self	:      Optional[int]				)	->			List[str]:


          '''simple docstring'''


          snake_case :     int           =   "hf-internal-testing/test-two-tokenizers"

          # This should pick the new tokenizer file as the version of Transformers is > 4.0.0
          snake_case :     int           =   AutoTokenizer.from_pretrained(snake_case__				)
          self.assertEqual(len(snake_case__				)					,		2_89_97				)
          snake_case :     Optional[int]           =   json.loads(tokenizer._tokenizer.to_str()				)
          self.assertIn("huggingface"					,		json_tokenizer["model"]["vocab"]				)

          # Testing an older version by monkey-patching the version in the module it's used.
          import transformers as old_transformers

          snake_case :     Dict           =   "3.0.0"
          snake_case :     Union[str, Any]           =   old_transformers.models.auto.AutoTokenizer.from_pretrained(snake_case__				)
          self.assertEqual(len(snake_case__				)					,		2_89_96				)
          snake_case :     Optional[Any]           =   json.loads(old_tokenizer._tokenizer.to_str()				)
          self.assertNotIn("huggingface"					,		json_tokenizer["model"]["vocab"]				)






@require_tokenizers
class 						UpperCAmelCase	(		unittest.TestCase				):



   def        _SCREAMING_SNAKE_CASE     (self	:      Optional[int]				)	->			List[Any]:


          '''simple docstring'''


          snake_case :     Tuple           =   PreTrainedTokenizerFast.from_pretrained("robot-test/dummy-tokenizer-wordlevel"				)
          snake_case :     List[Any]           =   "The Matrix is a 1999 science fiction action film."

          with concurrent.futures.ThreadPoolExecutor() as executor:
                 snake_case :     Union[str, Any]           =   [executor.submit(self.fetch					,		snake_case__					,		snake_case__				) for i in range(10				)]
                 snake_case :     Optional[Any]           =   [future.result() for future in futures]
                 self.assertEqual(snake_case__					,		[[1, 10, 0, 8, 0, 18, 0, 0, 0, 2] for i in range(10				)]				)



   def        _SCREAMING_SNAKE_CASE     (self	:      str					,		snake_case__	:      List[str]					,		snake_case__	:      str				)	->			List[str]:


          '''simple docstring'''


          return tokenizer.encode(snake_case__					,		truncation="longest_first"					,		padding="longest"				)





