




def      UpperCAmelCase_   (     __UpperCamelCase     ):
    SCREAMING_SNAKE_CASE__       =1
    SCREAMING_SNAKE_CASE__       =0
    SCREAMING_SNAKE_CASE__       =1
    SCREAMING_SNAKE_CASE__       =1
    SCREAMING_SNAKE_CASE__       =3
    SCREAMING_SNAKE_CASE__       =3
    SCREAMING_SNAKE_CASE__       =limit
    SCREAMING_SNAKE_CASE__       =0

    SCREAMING_SNAKE_CASE__       =""""""
    while counter != decimal + 1:
        if 4 * q + r - t < n * t:
            result += str(__UpperCamelCase     )
            if counter == 0:
                result += "."

            if decimal == counter:
                break

            counter += 1
            SCREAMING_SNAKE_CASE__       =10 * (r - n * t)
            SCREAMING_SNAKE_CASE__       =((10 * (3 * q + r)) // t) - 10 * n
            q *= 10
            SCREAMING_SNAKE_CASE__       =nr
        else:
            SCREAMING_SNAKE_CASE__       =(2 * q + r) * l
            SCREAMING_SNAKE_CASE__       =(q * (7 * k) + 2 + (r * l)) // (t * l)
            q *= k
            t *= l
            l += 2
            k += 1
            SCREAMING_SNAKE_CASE__       =nn
            SCREAMING_SNAKE_CASE__       =nr
    return result



def      UpperCAmelCase_   (     ):
    print(f"""{calculate_pi(50     ) = }"""     )
    import doctest

    doctest.testmod()


if __name__ == "__main__":
    main()












import logging
from pathlib import Path

import numpy as np
import pytorch_lightning as pl
import torch
from pytorch_lightning.callbacks import EarlyStopping, ModelCheckpoint
from pytorch_lightning.utilities import rank_zero_only

from utils import save_json



def      UpperCAmelCase_   (     __UpperCamelCase     ):
    SCREAMING_SNAKE_CASE__       =filter(lambda __UpperCamelCase     : p.requires_grad,    model.parameters()     )
    SCREAMING_SNAKE_CASE__       =sum([np.prod(p.size()     ) for p in model_parameters]     )
    return params


lowerCamelCase_  						=       logging.getLogger(__name__)
class 				__a (			pl.Callback					):


     """simple docstring"""


     def   __A    (     self      :			Optional[int]    ,_UpperCamelCase      :			Optional[Any]    ,_UpperCamelCase      :			Any						)		->       int:


         '''simple docstring'''





         SCREAMING_SNAKE_CASE__       ={f"""lr_group_{i}""": param["""lr"""] for i, param in enumerate(pl_module.trainer.optimizers[0].param_groups						)}
         pl_module.logger.log_metrics(_UpperCamelCase						)




     @rank_zero_only
     def   __A    (     self      :			Optional[int]    ,_UpperCamelCase      :			pl.Trainer    ,_UpperCamelCase      :			pl.LightningModule    ,_UpperCamelCase      :			str    ,_UpperCamelCase      :			Tuple=True						)		->       None:


         '''simple docstring'''





         logger.info(f"""***** {type_path} results at step {trainer.global_step:05d} *****"""						)
         SCREAMING_SNAKE_CASE__       =trainer.callback_metrics
         trainer.logger.log_metrics({k: v for k, v in metrics.items() if k not in ["""log""", """progress_bar""", """preds"""]}						)
         # Log results
         SCREAMING_SNAKE_CASE__       =Path(pl_module.hparams.output_dir						)
         if type_path == "test":
             SCREAMING_SNAKE_CASE__       =od / """test_results.txt"""
             SCREAMING_SNAKE_CASE__       =od / """test_generations.txt"""
         else:
             # this never gets hit. I prefer not to save intermediate generations, and results are in metrics.json
             # If people want this it will be easy enough to add back.
             SCREAMING_SNAKE_CASE__       =od / f"""{type_path}_results/{trainer.global_step:05d}.txt"""
             SCREAMING_SNAKE_CASE__       =od / f"""{type_path}_generations/{trainer.global_step:05d}.txt"""
             results_file.parent.mkdir(exist_ok=_UpperCamelCase						)
             generations_file.parent.mkdir(exist_ok=_UpperCamelCase						)
         with open(_UpperCamelCase    ,"""a+"""						) as writer:
             for key in sorted(_UpperCamelCase						):
                 if key in ["log", "progress_bar", "preds"]:
                     continue
                 SCREAMING_SNAKE_CASE__       =metrics[key]
                 if isinstance(_UpperCamelCase    ,torch.Tensor						):
                     SCREAMING_SNAKE_CASE__       =val.item()
                 SCREAMING_SNAKE_CASE__       =f"""{key}: {val:.6f}\n"""
                 writer.write(_UpperCamelCase						)

         if not save_generations:
             return

         if "preds" in metrics:
             SCREAMING_SNAKE_CASE__       ="""\n""".join(metrics["""preds"""]						)
             generations_file.open("""w+"""						).write(_UpperCamelCase						)




     @rank_zero_only
     def   __A    (     self      :			Tuple    ,_UpperCamelCase      :			int    ,_UpperCamelCase      :			Dict						)		->       Dict:


         '''simple docstring'''





         try:
             SCREAMING_SNAKE_CASE__       =pl_module.model.model.num_parameters()
         except AttributeError:
             SCREAMING_SNAKE_CASE__       =pl_module.model.num_parameters()

         SCREAMING_SNAKE_CASE__       =count_trainable_parameters(_UpperCamelCase						)
         # mp stands for million parameters
         trainer.logger.log_metrics({"""n_params""": npars, """mp""": npars / 1e6, """grad_mp""": n_trainable_pars / 1e6}						)




     @rank_zero_only
     def   __A    (     self      :			Optional[Any]    ,_UpperCamelCase      :			pl.Trainer    ,_UpperCamelCase      :			pl.LightningModule						)		->       Any:


         '''simple docstring'''





         save_json(pl_module.metrics    ,pl_module.metrics_save_path						)
         return self._write_logs(_UpperCamelCase    ,_UpperCamelCase    ,"""test"""						)




     @rank_zero_only
     def   __A    (     self      :			Optional[Any]    ,_UpperCamelCase      :			pl.Trainer    ,_UpperCamelCase      :			List[Any]						)		->       Dict:


         '''simple docstring'''





         save_json(pl_module.metrics    ,pl_module.metrics_save_path						)
         # Uncommenting this will save val generations
         # return self._write_logs(trainer, pl_module, "valid")






def      UpperCAmelCase_   (     __UpperCamelCase,    __UpperCamelCase,    __UpperCamelCase=1,    __UpperCamelCase=False     ):
    if metric == "rouge2":
        SCREAMING_SNAKE_CASE__       ="""{val_avg_rouge2:.4f}-{step_count}"""
    elif metric == "bleu":
        SCREAMING_SNAKE_CASE__       ="""{val_avg_bleu:.4f}-{step_count}"""
    elif metric == "loss":
        SCREAMING_SNAKE_CASE__       ="""{val_avg_loss:.4f}-{step_count}"""
    else:
        raise NotImplementedError(
            f"""seq2seq callbacks only support rouge2, bleu and loss, got {metric}, You can make your own by adding to"""
            """ this function."""     )

    SCREAMING_SNAKE_CASE__       =ModelCheckpoint(
        dirpath=__UpperCamelCase,    filename=__UpperCamelCase,    monitor=f"""val_{metric}""",    mode="""min""" if """loss""" in metric else """max""",    save_top_k=__UpperCamelCase,    )
    return checkpoint_callback




def      UpperCAmelCase_   (     __UpperCamelCase,    __UpperCamelCase     ):
    return EarlyStopping(
        monitor=f"""val_{metric}""",    mode="""min""" if """loss""" in metric else """max""",    patience=__UpperCamelCase,    verbose=__UpperCamelCase,    )






