


"""simple docstring"""

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
)
UpperCAmelCase__					=logging.getLogger(__name__)


def lowerCAmelCase_   (					UpperCamelCase__						:			Optional[int]					, UpperCamelCase__						:			int			):






 """simple docstring"""







 __lowercase						=						np.argmax(UpperCamelCase__					, axis=1			)
 return np.sum(outputs == labels			)


def lowerCAmelCase_   (					UpperCamelCase__						:			Union[str, Any]			):






 """simple docstring"""







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


def lowerCAmelCase_   (					UpperCamelCase__						:			Optional[int]					, UpperCamelCase__						:			Union[str, Any]					, UpperCamelCase__						:			List[Any]					, UpperCamelCase__						:			Any					, UpperCamelCase__						:			Optional[int]					, UpperCamelCase__						:			Dict			):






 """simple docstring"""







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


def lowerCAmelCase_   (					):






 """simple docstring"""







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

 parser.add_argument("""--server_ip"""					, type=UpperCamelCase__					, default=""""""					, help="""Can be used for distant debugging."""			)
 parser.add_argument("""--server_port"""					, type=UpperCamelCase__					, default=""""""					, help="""Can be used for distant debugging."""			)
 __lowercase						=						parser.parse_args()
 print(UpperCamelCase__			)

 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=UpperCamelCase__			)
  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			)

 __lowercase						=						torch.device("""cuda""" if torch.cuda.is_available() else """cpu"""			)
 __lowercase						=						torch.cuda.device_count()
 logger.info("""device: {}, n_gpu {}""".format(UpperCamelCase__					, UpperCamelCase__			)			)

 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
 __lowercase						=						["""_start_""", """_delimiter_""", """_classify_"""]
 __lowercase						=						OpenAIGPTTokenizer.from_pretrained(args.model_name			)
 tokenizer.add_tokens(UpperCamelCase__			)
 __lowercase						=						tokenizer.convert_tokens_to_ids(UpperCamelCase__			)
 __lowercase						=						OpenAIGPTDoubleHeadsModel.from_pretrained(args.model_name			)
 model.resize_token_embeddings(len(UpperCamelCase__			)			)
 model.to(UpperCamelCase__			)

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

 logger.info("""Encoding dataset..."""			)
 __lowercase						=						load_rocstories_dataset(args.train_dataset			)
 __lowercase						=						load_rocstories_dataset(args.eval_dataset			)
 __lowercase						=						(train_dataset, eval_dataset)
 __lowercase						=						tokenize_and_encode(UpperCamelCase__			)

 # Compute the max input length for the Transformer
 __lowercase						=						model.config.n_positions // 2 - 2
 __lowercase						=						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			)
 __lowercase						=						min(UpperCamelCase__					, model.config.n_positions			)  # Max size of input for the pre-trained model

 # Prepare inputs tensors and dataloaders
 __lowercase						=						pre_process_datasets(UpperCamelCase__					, UpperCamelCase__					, UpperCamelCase__					, *UpperCamelCase__			)
 __lowercase				,		__lowercase						=						tensor_datasets[0], tensor_datasets[1]

 __lowercase						=						TensorDataset(*UpperCamelCase__			)
 __lowercase						=						RandomSampler(UpperCamelCase__			)
 __lowercase						=						DataLoader(UpperCamelCase__					, sampler=UpperCamelCase__					, batch_size=args.train_batch_size			)

 __lowercase						=						TensorDataset(*UpperCamelCase__			)
 __lowercase						=						SequentialSampler(UpperCamelCase__			)
 __lowercase						=						DataLoader(UpperCamelCase__					, sampler=UpperCamelCase__					, batch_size=args.eval_batch_size			)

 # Prepare optimizer
 if args.do_train:
  if args.max_steps > 0:
   __lowercase						=						args.max_steps
   __lowercase						=						args.max_steps // (len(UpperCamelCase__			) // args.gradient_accumulation_steps) + 1
  else:
   __lowercase						=						len(UpperCamelCase__			) // args.gradient_accumulation_steps * args.num_train_epochs

  __lowercase						=						list(model.named_parameters()			)
  __lowercase						=						["""bias""", """LayerNorm.bias""", """LayerNorm.weight"""]
  __lowercase						=						[
      {
          """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},
  ]
  __lowercase						=						AdamW(UpperCamelCase__					, lr=args.learning_rate					, eps=args.adam_epsilon			)
  __lowercase						=						get_linear_schedule_with_warmup(
      UpperCamelCase__					, num_warmup_steps=args.warmup_steps					, num_training_steps=UpperCamelCase__			)

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

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

  # If we save using the predefined names, we can load using `from_pretrained`
  __lowercase						=						os.path.join(args.output_dir					, UpperCamelCase__			)
  __lowercase						=						os.path.join(args.output_dir					, UpperCamelCase__			)

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

  # Load a trained model and vocabulary that you have fine-tuned
  __lowercase						=						OpenAIGPTDoubleHeadsModel.from_pretrained(args.output_dir			)
  __lowercase						=						OpenAIGPTTokenizer.from_pretrained(args.output_dir			)
  model.to(UpperCamelCase__			)

 if args.do_eval:
  model.eval()
  __lowercase				,		__lowercase						=						0, 0
  __lowercase				,		__lowercase						=						0, 0
  for batch in tqdm(UpperCamelCase__					, desc="""Evaluating"""			):
   __lowercase						=						tuple(t.to(UpperCamelCase__			) for t in batch			)
   __lowercase				,		__lowercase				,		__lowercase				,		__lowercase						=						batch
   with torch.no_grad():
    __lowercase				,		__lowercase				,		__lowercase				,		__lowercase						=						model(
        UpperCamelCase__					, mc_token_ids=UpperCamelCase__					, lm_labels=UpperCamelCase__					, mc_labels=UpperCamelCase__			)

   __lowercase						=						mc_logits.detach().cpu().numpy()
   __lowercase						=						mc_labels.to("""cpu"""			).numpy()
   __lowercase						=						accuracy(UpperCamelCase__					, UpperCamelCase__			)

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

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

  __lowercase						=						eval_loss / nb_eval_steps
  __lowercase						=						eval_accuracy / nb_eval_examples
  __lowercase						=						tr_loss / nb_tr_steps if args.do_train else None
  __lowercase						=						{"""eval_loss""": eval_loss, """eval_accuracy""": eval_accuracy, """train_loss""": train_loss}

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


if __name__ == "__main__":
       main()




"""simple docstring"""

from pathlib import Path

import cva
import numpy as np
from matplotlib import pyplot as plt


def lowerCAmelCase_   (					UpperCamelCase__						:			np.ndarray					, UpperCamelCase__						:			np.ndarray					, UpperCamelCase__						:			np.ndarray					, UpperCamelCase__						:			int					, UpperCamelCase__						:			int			):






 """simple docstring"""







 __lowercase						=						cva.getAffineTransform(UpperCamelCase__					, UpperCamelCase__			)
 return cva.warpAffine(UpperCamelCase__					, UpperCamelCase__					, (rows, cols)			)


if __name__ == "__main__":
       # read original image
       UpperCAmelCase__					=cva.imread(
           str(Path(__file__).resolve().parent.parent / "image_data" / "lena.jpg")
       )
       # turn image in gray scale value
       UpperCAmelCase__					=cva.cvtColor(image, cva.COLOR_BGR2GRAY)
       # get image shape
       UpperCAmelCase__				,   UpperCAmelCase__					=gray_img.shape

       # set different points to rotate image
       UpperCAmelCase__					=np.array([[50, 50], [200, 50], [50, 200]], np.floataa)
       UpperCAmelCase__					=np.array([[10, 100], [200, 50], [100, 250]], np.floataa)
       UpperCAmelCase__					=np.array([[50, 50], [150, 50], [120, 200]], np.floataa)
       UpperCAmelCase__					=np.array([[10, 100], [80, 50], [180, 250]], np.floataa)

       # add all rotated images in a list
       UpperCAmelCase__					=[
           gray_img,
           get_rotation(gray_img, ptsa, ptsa, img_rows, img_cols),
           get_rotation(gray_img, ptsa, ptsa, img_rows, img_cols),
           get_rotation(gray_img, ptsa, ptsa, img_rows, img_cols),
       ]

       # plot different image rotations
       UpperCAmelCase__					=plt.figure(1)
       UpperCAmelCase__					=["Original", "Rotation 1", "Rotation 2", "Rotation 3"]
       for i, image in enumerate(images):
              plt.subplot(2, 2, i + 1), plt.imshow(image, "gray")
              plt.title(titles[i])
              plt.axis("off")
              plt.subplots_adjust(left=0.0, bottom=0.05, right=1.0, top=0.95)
       plt.show()
