"""simple docstring"""




import argparse
import pathlib

import fairseq
import torch
from fairseq.models.roberta import RobertaModel as FairseqRobertaModel
from fairseq.modules import TransformerSentenceEncoderLayer
from packaging import version

from transformers import RobertaConfig, RobertaForMaskedLM, RobertaForSequenceClassification
from transformers.models.bert.modeling_bert import (
    BertIntermediate,
    BertLayer,
    BertOutput,
    BertSelfAttention,
    BertSelfOutput,
)
from transformers.utils import logging


if version.parse(fairseq.__version__) < version.parse("0.9.0"):
					raise Exception("requires fairseq >= 0.9.0")


logging.set_verbosity_info()
UpperCAmelCase       :    Any									=			logging.get_logger(__name__)

UpperCAmelCase       :    Dict									=			"Hello world! cécé herlolip"



def 				__a       (			_lowercase							, _lowercase							, _lowercase						):







					"""simple docstring"""





					lowerCamelCase__		:   str  				=					FairseqRobertaModel.from_pretrained(_lowercase						)
					roberta.eval()  # disable dropout
					lowerCamelCase__		:   Any  				=					roberta.model.encoder.sentence_encoder
					lowerCamelCase__		:   Optional[Any]  				=					RobertaConfig(
					    vocab_size=roberta_sent_encoder.embed_tokens.num_embeddings							, hidden_size=roberta.args.encoder_embed_dim							, num_hidden_layers=roberta.args.encoder_layers							, num_attention_heads=roberta.args.encoder_attention_heads							, intermediate_size=roberta.args.encoder_ffn_embed_dim							, max_position_embeddings=514							, type_vocab_size=1							, layer_norm_eps=1e-5							, )
					if classification_head:
										lowerCamelCase__		:   int  				=					roberta.model.classification_heads['''mnli'''].out_proj.weight.shape[0]
					print('''Our BERT config:'''							, _lowercase						)

					lowerCamelCase__		:   Dict  				=					RobertaForSequenceClassification(_lowercase						) if classification_head else RobertaForMaskedLM(_lowercase						)
					model.eval()

					# Now let's copy all the weights.
					# Embeddings
					lowerCamelCase__		:   Tuple  				=					roberta_sent_encoder.embed_tokens.weight
					lowerCamelCase__		:   Tuple  				=					roberta_sent_encoder.embed_positions.weight
					lowerCamelCase__		:   List[Any]  				=					torch.zeros_like(
					    model.roberta.embeddings.token_type_embeddings.weight						)  # just zero them out b/c RoBERTa doesn't use them.
					lowerCamelCase__		:   int  				=					roberta_sent_encoder.emb_layer_norm.weight
					lowerCamelCase__		:   Union[str, Any]  				=					roberta_sent_encoder.emb_layer_norm.bias

					for i in range(config.num_hidden_layers						):
										# Encoder: start of layer
										lowerCamelCase__		:   BertLayer  				=					model.roberta.encoder.layer[i]
										lowerCamelCase__		:   TransformerSentenceEncoderLayer  				=					roberta_sent_encoder.layers[i]

										# self attention
										lowerCamelCase__		:   BertSelfAttention  				=					layer.attention.self
										assert (
										    roberta_layer.self_attn.k_proj.weight.data.shape
										    == roberta_layer.self_attn.q_proj.weight.data.shape
										    == roberta_layer.self_attn.v_proj.weight.data.shape
										    == torch.Size((config.hidden_size, config.hidden_size)						)
										)

										lowerCamelCase__		:   Dict  				=					roberta_layer.self_attn.q_proj.weight
										lowerCamelCase__		:   List[Any]  				=					roberta_layer.self_attn.q_proj.bias
										lowerCamelCase__		:   Any  				=					roberta_layer.self_attn.k_proj.weight
										lowerCamelCase__		:   int  				=					roberta_layer.self_attn.k_proj.bias
										lowerCamelCase__		:   Optional[int]  				=					roberta_layer.self_attn.v_proj.weight
										lowerCamelCase__		:   Optional[Any]  				=					roberta_layer.self_attn.v_proj.bias

										# self-attention output
										lowerCamelCase__		:   BertSelfOutput  				=					layer.attention.output
										assert self_output.dense.weight.shape == roberta_layer.self_attn.out_proj.weight.shape
										lowerCamelCase__		:   Optional[int]  				=					roberta_layer.self_attn.out_proj.weight
										lowerCamelCase__		:   List[Any]  				=					roberta_layer.self_attn.out_proj.bias
										lowerCamelCase__		:   List[Any]  				=					roberta_layer.self_attn_layer_norm.weight
										lowerCamelCase__		:   str  				=					roberta_layer.self_attn_layer_norm.bias

										# intermediate
										lowerCamelCase__		:   BertIntermediate  				=					layer.intermediate
										assert intermediate.dense.weight.shape == roberta_layer.fca.weight.shape
										lowerCamelCase__		:   Dict  				=					roberta_layer.fca.weight
										lowerCamelCase__		:   List[str]  				=					roberta_layer.fca.bias

										# output
										lowerCamelCase__		:   BertOutput  				=					layer.output
										assert bert_output.dense.weight.shape == roberta_layer.fca.weight.shape
										lowerCamelCase__		:   Optional[int]  				=					roberta_layer.fca.weight
										lowerCamelCase__		:   Optional[Any]  				=					roberta_layer.fca.bias
										lowerCamelCase__		:   Dict  				=					roberta_layer.final_layer_norm.weight
										lowerCamelCase__		:   Tuple  				=					roberta_layer.final_layer_norm.bias
										# end of layer

					if classification_head:
										lowerCamelCase__		:   Optional[int]  				=					roberta.model.classification_heads['''mnli'''].dense.weight
										lowerCamelCase__		:   Tuple  				=					roberta.model.classification_heads['''mnli'''].dense.bias
										lowerCamelCase__		:   Optional[Any]  				=					roberta.model.classification_heads['''mnli'''].out_proj.weight
										lowerCamelCase__		:   int  				=					roberta.model.classification_heads['''mnli'''].out_proj.bias
					else:
										# LM Head
										lowerCamelCase__		:   Optional[Any]  				=					roberta.model.encoder.lm_head.dense.weight
										lowerCamelCase__		:   Dict  				=					roberta.model.encoder.lm_head.dense.bias
										lowerCamelCase__		:   Any  				=					roberta.model.encoder.lm_head.layer_norm.weight
										lowerCamelCase__		:   List[Any]  				=					roberta.model.encoder.lm_head.layer_norm.bias
										lowerCamelCase__		:   Dict  				=					roberta.model.encoder.lm_head.weight
										lowerCamelCase__		:   Any  				=					roberta.model.encoder.lm_head.bias

					# Let's check that we get the same results.
					lowerCamelCase__		:   torch.Tensor  				=					roberta.encode(_lowercase						).unsqueeze(0						)  # batch of size 1

					lowerCamelCase__		:   str  				=					model(_lowercase						)[0]
					if classification_head:
										lowerCamelCase__		:   List[Any]  				=					roberta.model.classification_heads['''mnli'''](roberta.extract_features(_lowercase						)						)
					else:
										lowerCamelCase__		:   Union[str, Any]  				=					roberta.model(_lowercase						)[0]
					print(our_output.shape							, their_output.shape						)
					lowerCamelCase__		:   Optional[Any]  				=					torch.max(torch.abs(our_output - their_output						)						).item()
					print(f"""max_absolute_diff = {max_absolute_diff}"""						)  # ~ 1e-7
					lowerCamelCase__		:   Any  				=					torch.allclose(_lowercase							, _lowercase							, atol=1e-3						)
					print('''Do both models output the same tensors?'''							, '''🔥''' if success else '''💩'''						)
					if not success:
										raise Exception('''Something went wRoNg'''						)

					pathlib.Path(_lowercase						).mkdir(parents=_lowercase							, exist_ok=_lowercase						)
					print(f"""Saving model to {pytorch_dump_folder_path}"""						)
					model.save_pretrained(_lowercase						)


if __name__ == "__main__":
					UpperCAmelCase       :    Tuple									=			argparse.ArgumentParser()
					# Required parameters
					parser.add_argument(
					    "--roberta_checkpoint_path", default=None, type=str, required=True, help="Path the official PyTorch dump."
					)
					parser.add_argument(
					    "--pytorch_dump_folder_path", default=None, type=str, required=True, help="Path to the output PyTorch model."
					)
					parser.add_argument(
					    "--classification_head", action="store_true", help="Whether to convert a final classification head."
					)
					UpperCAmelCase       :    str									=			parser.parse_args()
					convert_roberta_checkpoint_to_pytorch(
					    args.roberta_checkpoint_path, args.pytorch_dump_folder_path, args.classification_head
					)







"""simple docstring"""




from collections.abc import Callable

UpperCAmelCase       :    Optional[int]									=			Callable[[float], float]  # type alias for a real -> real function



def 				__a       (			_lowercase							, _lowercase							, _lowercase							, ):







					"""simple docstring"""





					lowerCamelCase__		:   Tuple  				=					float(_lowercase						)
					while True:
										try:
															lowerCamelCase__		:   str  				=					prev_guess - function(_lowercase						) / derivative(_lowercase						)
										except ZeroDivisionError:
															raise ZeroDivisionError('''Could not find root'''						) from None
										if abs(prev_guess - next_guess						) < 10**-5:
															return next_guess
										lowerCamelCase__		:   List[str]  				=					next_guess



def 				__a       (			_lowercase						):







					"""simple docstring"""





					return (x**3) - (2 * x) - 5



def 				__a       (			_lowercase						):







					"""simple docstring"""





					return 3 * (x**2) - 2


if __name__ == "__main__":
					print(newton(f, fa, 3))






