


"""simple docstring"""




from __future__ import annotations


def     lowercase			(SCREAMING_SNAKE_CASE_		:				str ,			SCREAMING_SNAKE_CASE_		:				list[str] | None = None ,			SCREAMING_SNAKE_CASE_		:				dict[str, float] | None = None ,			SCREAMING_SNAKE_CASE_		:				bool = False ,			)   ->						tuple[int, float, str]:
						SCREAMING_SNAKE_CASE													=					cipher_alphabet or [chr(_snake_case  ) for i in range(97 ,			1_23  )]

						# If the argument is None or the user provided an empty dictionary
						if not frequencies_dict:
												# Frequencies of letters in the english language (how much they show up)
												SCREAMING_SNAKE_CASE													=					{
												    "a": 0.0_84_97,
												    "b": 0.0_14_92,
												    "c": 0.0_22_02,
												    "d": 0.0_42_53,
												    "e": 0.1_11_62,
												    "f": 0.0_22_28,
												    "g": 0.0_20_15,
												    "h": 0.0_60_94,
												    "i": 0.0_75_46,
												    "j": 0.0_01_53,
												    "k": 0.0_12_92,
												    "l": 0.0_40_25,
												    "m": 0.0_24_06,
												    "n": 0.0_67_49,
												    "o": 0.0_75_07,
												    "p": 0.0_19_29,
												    "q": 0.0_00_95,
												    "r": 0.0_75_87,
												    "s": 0.0_63_27,
												    "t": 0.0_93_56,
												    "u": 0.0_27_58,
												    "v": 0.0_09_78,
												    "w": 0.0_25_60,
												    "x": 0.0_01_50,
												    "y": 0.0_19_94,
												    "z": 0.0_00_77,
												}
						else:
												# Custom frequencies dictionary
												SCREAMING_SNAKE_CASE													=					frequencies_dict

						if not case_sensitive:
												SCREAMING_SNAKE_CASE													=					ciphertext.lower()

						# Chi squared statistic values
						SCREAMING_SNAKE_CASE													=					{}

						# cycle through all of the shifts
						for shift in range(len(_snake_case  )  ):
												SCREAMING_SNAKE_CASE													=					""

												# decrypt the message with the shift
												for letter in ciphertext:
																		try:
																								# Try to index the letter in the alphabet
																								SCREAMING_SNAKE_CASE													=					(alphabet_letters.index(letter.lower()  ) - shift) % len(
																								    _snake_case  )
																								decrypted_with_shift += (
																								    alphabet_letters[new_key].upper()
																								    if case_sensitive and letter.isupper()
																								    else alphabet_letters[new_key]
																								)
																		except ValueError:
																								# Append the character if it isn't in the alphabet
																								decrypted_with_shift += letter

												SCREAMING_SNAKE_CASE													=					0.0

												# Loop through each letter in the decoded message with the shift
												for letter in decrypted_with_shift:
																		if case_sensitive:
																								SCREAMING_SNAKE_CASE													=					letter.lower()
																								if letter in frequencies:
																														# Get the amount of times the letter occurs in the message
																														SCREAMING_SNAKE_CASE													=					decrypted_with_shift.lower().count(_snake_case  )

																														# Get the excepcted amount of times the letter should appear based
																														# on letter frequencies
																														SCREAMING_SNAKE_CASE													=					frequencies[letter] * occurrences

																														# Complete the chi squared statistic formula
																														SCREAMING_SNAKE_CASE													=					((occurrences - expected) ** 2) / expected

																														# Add the margin of error to the total chi squared statistic
																														chi_squared_statistic += chi_letter_value
																		else:
																								if letter.lower() in frequencies:
																														# Get the amount of times the letter occurs in the message
																														SCREAMING_SNAKE_CASE													=					decrypted_with_shift.count(_snake_case  )

																														# Get the excepcted amount of times the letter should appear based
																														# on letter frequencies
																														SCREAMING_SNAKE_CASE													=					frequencies[letter] * occurrences

																														# Complete the chi squared statistic formula
																														SCREAMING_SNAKE_CASE													=					((occurrences - expected) ** 2) / expected

																														# Add the margin of error to the total chi squared statistic
																														chi_squared_statistic += chi_letter_value

        # Add the data to the chi_squared_statistic_values dictionary
												SCREAMING_SNAKE_CASE													=					(
												    chi_squared_statistic,
												    decrypted_with_shift,
												)

						# Get the most likely cipher by finding the cipher with the smallest chi squared
						# statistic
						def chi_squared_statistic_values_sorting_key(SCREAMING_SNAKE_CASE_		:				int  ) -> tuple[float, str]:
												return chi_squared_statistic_values[key]

						SCREAMING_SNAKE_CASE													=					min(
						    _snake_case ,			key=_snake_case ,			)

						# Get all the data from the most likely cipher (key, decoded message)
						(
						    SCREAMING_SNAKE_CASE    
						)													=					chi_squared_statistic_values[most_likely_cipher]

						# Return the data on the most likely shift
						return (
						    most_likely_cipher,
						    most_likely_cipher_chi_squared_value,
						    decoded_most_likely_cipher,
						)




import argparse
import csv
import logging
import os
import random

import numpy as np
import torch
from torch.utils.data import DataLoader, RandomSampler, SequentialSampler, TensorDataset
from tqdm import tqdm, trange

from transformers import (
    CONFIG_NAME,
    WEIGHTS_NAME,
    AdamW,
    OpenAIGPTDoubleHeadsModel,
    OpenAIGPTTokenizer,
    get_linear_schedule_with_warmup,
)


logging.basicConfig(
    format="%(asctime)s - %(levelname)s - %(name)s - %(message)s", datefmt="%m/%d/%Y %H:%M:%S", level=logging.INFO
)
snake_case :		Optional[int]							      =  logging.getLogger(__name__)






def   lowerCAmelCase_						(					_snake_case      :  Dict      ,   _snake_case      :  Union[str, Any]   )				->		Tuple:







	'''simple docstring'''


	__magic_name__		:		List[str]	   =     np.argmax(_snake_case      ,   axis=1   )
	return np.sum(outputs == labels   )






def   lowerCAmelCase_						(					_snake_case      :  Optional[Any]   )				->		Dict:







	'''simple docstring'''


	with open(_snake_case      ,   encoding="utf_8"   ) as f:
		__magic_name__		:		List[str]	   =     csv.reader(_snake_case   )
		__magic_name__		:		List[Any]	   =     []
		next(_snake_case   )  # skip the first line
		for line in tqdm(_snake_case   ):
			output.append((" ".join(line[1:5]   ), line[5], line[6], int(line[-1]   ) - 1)   )
	return output






def   lowerCAmelCase_						(					_snake_case      :  str      ,   _snake_case      :  Tuple      ,   _snake_case      :  Union[str, Any]      ,   _snake_case      :  List[Any]      ,   _snake_case      :  Tuple      ,   _snake_case      :  Optional[int]   )				->		int:







	'''simple docstring'''


	__magic_name__		:		Optional[int]	   =     []
	for dataset in encoded_datasets:
		__magic_name__		:		Union[str, Any]	   =     len(_snake_case   )
		__magic_name__		:		Dict	   =     np.zeros((n_batch, 2, input_len)      ,   dtype=np.intaa   )
		__magic_name__		:		List[str]	   =     np.zeros((n_batch, 2)      ,   dtype=np.intaa   )
		__magic_name__		:		Optional[int]	   =     np.full((n_batch, 2, input_len)      ,   fill_value=-100      ,   dtype=np.intaa   )
		__magic_name__		:		int	   =     np.zeros((n_batch,)      ,   dtype=np.intaa   )
		for (
		    i,
		    (story, conta, conta, mc_label),
		) in enumerate(_snake_case   ):
			__magic_name__		:		Dict	   =     [start_token] + story[:cap_length] + [delimiter_token] + conta[:cap_length] + [clf_token]
			__magic_name__		:		Dict	   =     [start_token] + story[:cap_length] + [delimiter_token] + conta[:cap_length] + [clf_token]
			__magic_name__		:		str	   =     with_conta
			__magic_name__		:		Tuple	   =     with_conta
			__magic_name__		:		Union[str, Any]	   =     len(_snake_case   ) - 1
			__magic_name__		:		int	   =     len(_snake_case   ) - 1
			__magic_name__		:		Optional[Any]	   =     with_conta
			__magic_name__		:		Optional[Any]	   =     with_conta
			__magic_name__		:		Optional[int]	   =     mc_label
		__magic_name__		:		str	   =     (input_ids, mc_token_ids, lm_labels, mc_labels)
		tensor_datasets.append(tuple(torch.tensor(_snake_case   ) for t in all_inputs   )   )
	return tensor_datasets






def   lowerCAmelCase_						(					)				->		List[Any]:







	'''simple docstring'''


	__magic_name__		:		Any	   =     argparse.ArgumentParser()
	parser.add_argument("--model_name"      ,   type=_snake_case      ,   default="openai-gpt"      ,   help="pretrained model name"   )
	parser.add_argument("--do_train"      ,   action="store_true"      ,   help="Whether to run training."   )
	parser.add_argument("--do_eval"      ,   action="store_true"      ,   help="Whether to run eval on the dev set."   )
	parser.add_argument(
	    "--output_dir"      ,   default=_snake_case      ,   type=_snake_case      ,   required=_snake_case      ,   help="The output directory where the model predictions and checkpoints will be written."      ,   )
	parser.add_argument("--train_dataset"      ,   type=_snake_case      ,   default=""   )
	parser.add_argument("--eval_dataset"      ,   type=_snake_case      ,   default=""   )
	parser.add_argument("--seed"      ,   type=_snake_case      ,   default=42   )
	parser.add_argument("--num_train_epochs"      ,   type=_snake_case      ,   default=3   )
	parser.add_argument("--train_batch_size"      ,   type=_snake_case      ,   default=8   )
	parser.add_argument("--eval_batch_size"      ,   type=_snake_case      ,   default=16   )
	parser.add_argument("--adam_epsilon"      ,   default=1E-8      ,   type=_snake_case      ,   help="Epsilon for Adam optimizer."   )
	parser.add_argument("--max_grad_norm"      ,   type=_snake_case      ,   default=1   )
	parser.add_argument(
	    "--max_steps"      ,   default=-1      ,   type=_snake_case      ,   help=(
	        "If > 0: set total number of training                         steps to perform. Override num_train_epochs."
	    )      ,   )
	parser.add_argument(
	    "--gradient_accumulation_steps"      ,   type=_snake_case      ,   default=1      ,   help="Number of updates steps to accumulate before                        performing a backward/update pass."      ,   )
	parser.add_argument("--learning_rate"      ,   type=_snake_case      ,   default=6.25E-5   )
	parser.add_argument("--warmup_steps"      ,   default=0      ,   type=_snake_case      ,   help="Linear warmup over warmup_steps."   )
	parser.add_argument("--lr_schedule"      ,   type=_snake_case      ,   default="warmup_linear"   )
	parser.add_argument("--weight_decay"      ,   type=_snake_case      ,   default=0.01   )
	parser.add_argument("--lm_coef"      ,   type=_snake_case      ,   default=0.9   )
	parser.add_argument("--n_valid"      ,   type=_snake_case      ,   default=374   )

	parser.add_argument("--server_ip"      ,   type=_snake_case      ,   default=""      ,   help="Can be used for distant debugging."   )
	parser.add_argument("--server_port"      ,   type=_snake_case      ,   default=""      ,   help="Can be used for distant debugging."   )
	__magic_name__		:		List[Any]	   =     parser.parse_args()
	print(_snake_case   )

	if args.server_ip and args.server_port:
		# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
		import ptvsd

		print("Waiting for debugger attach"   )
		ptvsd.enable_attach(address=(args.server_ip, args.server_port)      ,   redirect_output=_snake_case   )
		ptvsd.wait_for_attach()

	random.seed(args.seed   )
	np.random.seed(args.seed   )
	torch.manual_seed(args.seed   )
	torch.cuda.manual_seed_all(args.seed   )

	__magic_name__		:		Dict	   =     torch.device("cuda" if torch.cuda.is_available() else "cpu"   )
	__magic_name__		:		Optional[int]	   =     torch.cuda.device_count()
	logger.info("device: {}, n_gpu {}".format(_snake_case      ,   _snake_case   )   )

	if not args.do_train and not args.do_eval:
		raise ValueError("At least one of `do_train` or `do_eval` must be True."   )

	if not os.path.exists(args.output_dir   ):
		os.makedirs(args.output_dir   )

	# Load tokenizer and model
	# This loading functions also add new tokens and embeddings called `special tokens`
	# These new embeddings will be fine-tuned on the RocStories dataset
	__magic_name__		:		List[Any]	   =     ["_start_", "_delimiter_", "_classify_"]
	__magic_name__		:		Optional[int]	   =     OpenAIGPTTokenizer.from_pretrained(args.model_name   )
	tokenizer.add_tokens(_snake_case   )
	__magic_name__		:		Optional[Any]	   =     tokenizer.convert_tokens_to_ids(_snake_case   )
	__magic_name__		:		List[str]	   =     OpenAIGPTDoubleHeadsModel.from_pretrained(args.model_name   )
	model.resize_token_embeddings(len(_snake_case   )   )
	model.to(_snake_case   )

	# Load and encode the datasets
	def tokenize_and_encode(_snake_case      :  str   ):
		if isinstance(_snake_case      ,   _snake_case   ):
			return tokenizer.convert_tokens_to_ids(tokenizer.tokenize(_snake_case   )   )
		elif isinstance(_snake_case      ,   _snake_case   ):
			return obj
		return [tokenize_and_encode(_snake_case   ) for o in obj]

	logger.info("Encoding dataset..."   )
	__magic_name__		:		Optional[int]	   =     load_rocstories_dataset(args.train_dataset   )
	__magic_name__		:		str	   =     load_rocstories_dataset(args.eval_dataset   )
	__magic_name__		:		int	   =     (train_dataset, eval_dataset)
	__magic_name__		:		List[str]	   =     tokenize_and_encode(_snake_case   )

	# Compute the max input length for the Transformer
	__magic_name__		:		Optional[Any]	   =     model.config.n_positions // 2 - 2
	__magic_name__		:		Optional[int]	   =     max(
	    len(story[:max_length]   ) + max(len(conta[:max_length]   )      ,   len(conta[:max_length]   )   ) + 3
	    for dataset in encoded_datasets
	    for story, conta, conta, _ in dataset   )
	__magic_name__		:		List[str]	   =     min(_snake_case      ,   model.config.n_positions   )  # Max size of input for the pre-trained model

	# Prepare inputs tensors and dataloaders
	__magic_name__		:		List[Any]	   =     pre_process_datasets(_snake_case      ,   _snake_case      ,   _snake_case      ,   *_snake_case   )
	__magic_name__   ,    __magic_name__		:		Optional[int]	   =     tensor_datasets[0], tensor_datasets[1]

	__magic_name__		:		Tuple	   =     TensorDataset(*_snake_case   )
	__magic_name__		:		Union[str, Any]	   =     RandomSampler(_snake_case   )
	__magic_name__		:		Dict	   =     DataLoader(_snake_case      ,   sampler=_snake_case      ,   batch_size=args.train_batch_size   )

	__magic_name__		:		Any	   =     TensorDataset(*_snake_case   )
	__magic_name__		:		Optional[Any]	   =     SequentialSampler(_snake_case   )
	__magic_name__		:		int	   =     DataLoader(_snake_case      ,   sampler=_snake_case      ,   batch_size=args.eval_batch_size   )

	# Prepare optimizer
	if args.do_train:
		if args.max_steps > 0:
			__magic_name__		:		Tuple	   =     args.max_steps
			__magic_name__		:		List[str]	   =     args.max_steps // (len(_snake_case   ) // args.gradient_accumulation_steps) + 1
		else:
			__magic_name__		:		List[str]	   =     len(_snake_case   ) // args.gradient_accumulation_steps * args.num_train_epochs

		__magic_name__		:		str	   =     list(model.named_parameters()   )
		__magic_name__		:		Dict	   =     ["bias", "LayerNorm.bias", "LayerNorm.weight"]
		__magic_name__		:		str	   =     [
		    {
		        "params": [p for n, p in param_optimizer if not any(nd in n for nd in no_decay   )],
		        "weight_decay": args.weight_decay,
		    },
		    {"params": [p for n, p in param_optimizer if any(nd in n for nd in no_decay   )], "weight_decay": 0.0},
		]
		__magic_name__		:		str	   =     AdamW(_snake_case      ,   lr=args.learning_rate      ,   eps=args.adam_epsilon   )
		__magic_name__		:		List[str]	   =     get_linear_schedule_with_warmup(
		    _snake_case      ,   num_warmup_steps=args.warmup_steps      ,   num_training_steps=_snake_case   )

	if args.do_train:
		__magic_name__   ,    __magic_name__   ,    __magic_name__		:		Union[str, Any]	   =     0, 0, None
		model.train()
		for _ in trange(int(args.num_train_epochs   )      ,   desc="Epoch"   ):
			__magic_name__		:		List[str]	   =     0
			__magic_name__		:		Tuple	   =     0
			__magic_name__		:		Dict	   =     tqdm(_snake_case      ,   desc="Training"   )
			for step, batch in enumerate(_snake_case   ):
				__magic_name__		:		Optional[Any]	   =     tuple(t.to(_snake_case   ) for t in batch   )
				__magic_name__   ,    __magic_name__   ,    __magic_name__   ,    __magic_name__		:		Dict	   =     batch
				__magic_name__		:		Optional[Any]	   =     model(_snake_case      ,   mc_token_ids=_snake_case      ,   lm_labels=_snake_case      ,   mc_labels=_snake_case   )
				__magic_name__		:		Optional[Any]	   =     args.lm_coef * losses[0] + losses[1]
				loss.backward()
				optimizer.step()
				scheduler.step()
				optimizer.zero_grad()
				tr_loss += loss.item()
				__magic_name__		:		List[str]	   =     (
				    loss.item() if exp_average_loss is None else 0.7 * exp_average_loss + 0.3 * loss.item()
				)
				nb_tr_steps += 1
				__magic_name__		:		int	   =     "Training loss: {:.2e} lr: {:.2e}".format(_snake_case      ,   scheduler.get_lr()[0]   )

    # Save a trained model
	if args.do_train:
		# Save a trained model, configuration and tokenizer
		__magic_name__		:		Dict	   =     model.module if hasattr(_snake_case      ,   "module"   ) else model  # Only save the model itself

		# If we save using the predefined names, we can load using `from_pretrained`
		__magic_name__		:		List[Any]	   =     os.path.join(args.output_dir      ,   _snake_case   )
		__magic_name__		:		Dict	   =     os.path.join(args.output_dir      ,   _snake_case   )

		torch.save(model_to_save.state_dict()      ,   _snake_case   )
		model_to_save.config.to_json_file(_snake_case   )
		tokenizer.save_vocabulary(args.output_dir   )

		# Load a trained model and vocabulary that you have fine-tuned
		__magic_name__		:		Dict	   =     OpenAIGPTDoubleHeadsModel.from_pretrained(args.output_dir   )
		__magic_name__		:		Optional[int]	   =     OpenAIGPTTokenizer.from_pretrained(args.output_dir   )
		model.to(_snake_case   )

	if args.do_eval:
		model.eval()
		__magic_name__   ,    __magic_name__		:		Any	   =     0, 0
		__magic_name__   ,    __magic_name__		:		Union[str, Any]	   =     0, 0
		for batch in tqdm(_snake_case      ,   desc="Evaluating"   ):
			__magic_name__		:		int	   =     tuple(t.to(_snake_case   ) for t in batch   )
			__magic_name__   ,    __magic_name__   ,    __magic_name__   ,    __magic_name__		:		Union[str, Any]	   =     batch
			with torch.no_grad():
				__magic_name__   ,    __magic_name__   ,    __magic_name__   ,    __magic_name__		:		Dict	   =     model(
				    _snake_case      ,   mc_token_ids=_snake_case      ,   lm_labels=_snake_case      ,   mc_labels=_snake_case   )

			__magic_name__		:		Tuple	   =     mc_logits.detach().cpu().numpy()
			__magic_name__		:		Any	   =     mc_labels.to("cpu"   ).numpy()
			__magic_name__		:		str	   =     accuracy(_snake_case      ,   _snake_case   )

			eval_loss += mc_loss.mean().item()
			eval_accuracy += tmp_eval_accuracy

			nb_eval_examples += input_ids.size(0   )
			nb_eval_steps += 1

		__magic_name__		:		Tuple	   =     eval_loss / nb_eval_steps
		__magic_name__		:		List[Any]	   =     eval_accuracy / nb_eval_examples
		__magic_name__		:		int	   =     tr_loss / nb_tr_steps if args.do_train else None
		__magic_name__		:		Any	   =     {"eval_loss": eval_loss, "eval_accuracy": eval_accuracy, "train_loss": train_loss}

		__magic_name__		:		int	   =     os.path.join(args.output_dir      ,   "eval_results.txt"   )
		with open(_snake_case      ,   "w"   ) as writer:
			logger.info("***** Eval results *****"   )
			for key in sorted(result.keys()   ):
				logger.info("  %s = %s"      ,   _snake_case      ,   str(result[key]   )   )
				writer.write("%s = %s\n" % (key, str(result[key]   ))   )


if __name__ == "__main__":
				main()
