

"""simple docstring"""




import os
import tempfile
from pathlib import Path
from unittest import TestCase

import pyarrow as pa
import pytest

from datasets.arrow_dataset import Dataset
from datasets.arrow_reader import ArrowReader, BaseReader, FileInstructions, ReadInstruction, make_file_instructions
from datasets.info import DatasetInfo
from datasets.splits import NamedSplit, Split, SplitDict, SplitInfo

from .utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases







class        __lowercase     (      __lowerCamelCase   ):

		def 				__lowercase    (					self						:     Union[str, Any]   ,A						:     Tuple   ,A						:     Optional[int]=False      ):






			'''simple docstring'''
			UpperCAmelCase__   :					Optional[int]   				=   (
			    filename_skip_take["""filename"""],
			    filename_skip_take["""skip"""] if """skip""" in filename_skip_take else None,
			    filename_skip_take["""take"""] if """take""" in filename_skip_take else None,
			)
			open(os.path.join(A      )   ,"""wb"""      ).close()
			UpperCAmelCase__   :					Optional[int]   				=   pa.Table.from_pydict({"""filename""": [Path(A      ).name] * 100}      )
			if take == -1:
				UpperCAmelCase__   :					Optional[Any]   				=   len(A      ) - skip
			if skip is not None and take is not None:
				UpperCAmelCase__   :					List[str]   				=   pa_table.slice(A   ,A      )
			return pa_table







class        __lowercase     (      __lowerCamelCase   ):

		def 				__lowercase    (					self						:     List[Any]      ):






			'''simple docstring'''
			UpperCAmelCase__   :					Optional[int]   				=   """my_name"""
			UpperCAmelCase__   :					Tuple   				=   SplitInfo(name="""train"""   ,num_examples=100      )
			UpperCAmelCase__   :					List[Any]   				=   SplitInfo(name="""test"""   ,num_examples=100      )
			UpperCAmelCase__   :					List[Any]   				=   [train_info, test_info]
			UpperCAmelCase__   :					Optional[int]   				=   SplitDict()
			split_dict.add(A      )
			split_dict.add(A      )
			UpperCAmelCase__   :					List[Any]   				=   DatasetInfo(splits=A      )

			with tempfile.TemporaryDirectory() as tmp_dir:
				UpperCAmelCase__   :					int   				=   ReaderTest(A   ,A      )

				UpperCAmelCase__   :					List[str]   				=   """test[:33%]"""
				UpperCAmelCase__   :					Union[str, Any]   				=   Dataset(**reader.read(A   ,A   ,A      )      )
				self.assertEqual(dset["""filename"""][0]   ,f"{name}-test"      )
				self.assertEqual(dset.num_rows   ,33      )
				self.assertEqual(dset.num_columns   ,1      )

				UpperCAmelCase__   :					Optional[Any]   				=   ["""train""", """test[:33%]"""]
				UpperCAmelCase__   :					Optional[Any]   				=   [Split.TRAIN, ReadInstruction.from_spec("""test[:33%]"""      )]
				for instructions in [instructionsa, instructionsa]:
					UpperCAmelCase__   :					Any   				=   [reader.read(A   ,A   ,A      ) for instr in instructions]
					UpperCAmelCase__   :					List[Any]   				=   (Dataset(**A      ) for dataset_kwargs in datasets_kwargs)
					self.assertEqual(train_dset["""filename"""][0]   ,f"{name}-train"      )
					self.assertEqual(train_dset.num_rows   ,100      )
					self.assertEqual(train_dset.num_columns   ,1      )
					self.assertIsInstance(train_dset.split   ,A      )
					self.assertEqual(str(train_dset.split      )   ,"""train"""      )
					self.assertEqual(test_dset["""filename"""][0]   ,f"{name}-test"      )
					self.assertEqual(test_dset.num_rows   ,33      )
					self.assertEqual(test_dset.num_columns   ,1      )
					self.assertIsInstance(test_dset.split   ,A      )
					self.assertEqual(str(test_dset.split      )   ,"""test[:33%]"""      )
					del train_dset, test_dset

		def 				__lowercase    (					self						:     Union[str, Any]      ):






			'''simple docstring'''
			UpperCAmelCase__   :					Any   				=   """my_name"""
			UpperCAmelCase__   :					Union[str, Any]   				=   SplitInfo(name="""train"""   ,num_examples=1_000   ,shard_lengths=[100] * 10      )
			UpperCAmelCase__   :					int   				=   [train_info]
			UpperCAmelCase__   :					List[Any]   				=   SplitDict()
			split_dict.add(A      )
			UpperCAmelCase__   :					int   				=   DatasetInfo(splits=A      )

			with tempfile.TemporaryDirectory() as tmp_dir:
				UpperCAmelCase__   :					Dict   				=   ReaderTest(A   ,A      )

				UpperCAmelCase__   :					Optional[int]   				=   """train[:33%]"""
				UpperCAmelCase__   :					Tuple   				=   Dataset(**reader.read(A   ,A   ,A      )      )
				self.assertEqual(dset["""filename"""][0]   ,f"{name}-train-00000-of-00010"      )
				self.assertEqual(dset["""filename"""][-1]   ,f"{name}-train-00003-of-00010"      )
				self.assertEqual(dset.num_rows   ,330      )
				self.assertEqual(dset.num_columns   ,1      )




		def 				__lowercase    (					self						:     List[str]      ):






			'''simple docstring'''
			UpperCAmelCase__   :					int   				=   SplitInfo(name="""train"""   ,num_examples=100      )
			UpperCAmelCase__   :					Optional[int]   				=   SplitInfo(name="""test"""   ,num_examples=100      )
			UpperCAmelCase__   :					Any   				=   SplitDict()
			split_dict.add(A      )
			split_dict.add(A      )
			UpperCAmelCase__   :					str   				=   DatasetInfo(splits=A      )

			with tempfile.TemporaryDirectory() as tmp_dir:
				UpperCAmelCase__   :					Optional[int]   				=   ReaderTest(A   ,A      )

				UpperCAmelCase__   :					List[str]   				=   [
				    {"""filename""": os.path.join(A   ,"""train"""      )},
				    {"""filename""": os.path.join(A   ,"""test"""      ), """skip""": 10, """take""": 10},
				]
				UpperCAmelCase__   :					Tuple   				=   Dataset(**reader.read_files(A   ,original_instructions="""train+test[10:20]"""      )      )
				self.assertEqual(dset.num_rows   ,110      )
				self.assertEqual(dset.num_columns   ,1      )
				del dset







@pytest.mark.parametrize("""in_memory"""							,      [False, True] )
def 					lowerCAmelCase  (   __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase ):
	'''simple docstring'''





	UpperCAmelCase__   :					Optional[int]   				=   arrow_file
	with assert_arrow_memory_increases() if in_memory else assert_arrow_memory_doesnt_increase():
		UpperCAmelCase__   :					List[str]   				=   ArrowReader.read_table(__UpperCamelCase							,      in_memory=__UpperCamelCase )
	assert table.shape == dataset.data.shape
	assert set(table.column_names ) == set(dataset.data.column_names )
	assert dict(table.to_pydict() ) == dict(dataset.data.to_pydict() )  # to_pydict returns OrderedDict
@pytest.mark.parametrize("""in_memory"""							,      [False, True] )
def 					lowerCAmelCase  (   __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase ):
	'''simple docstring'''





	UpperCAmelCase__   :					List[Any]   				=   arrow_file
	UpperCAmelCase__   :					Tuple   				=   ArrowReader(""""""							,      __UpperCamelCase )
	with assert_arrow_memory_increases() if in_memory else assert_arrow_memory_doesnt_increase():
		UpperCAmelCase__   :					Tuple   				=   reader.read_files([{"""filename""": filename}]							,      in_memory=__UpperCamelCase )
	assert dataset_kwargs.keys() == {"arrow_table", "info", "split"}
	UpperCAmelCase__   :					Optional[Any]   				=   dataset_kwargs["""arrow_table"""]
	assert table.shape == dataset.data.shape
	assert set(table.column_names ) == set(dataset.data.column_names )
	assert dict(table.to_pydict() ) == dict(dataset.data.to_pydict() )  # to_pydict returns OrderedDict
def 					lowerCAmelCase  (   ):
	'''simple docstring'''





	assert ReadInstruction("""train"""							,      to=10							,      unit="""abs""" ).to_spec() == "train[:10]"
	assert ReadInstruction("""train"""							,      from_=-80							,      to=10							,      unit="""%""" ).to_spec() == "train[-80%:10%]"

	UpperCAmelCase__   :					Union[str, Any]   				=   """train+test"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == spec_train_test

	UpperCAmelCase__   :					List[Any]   				=   """train[2:10]"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == spec_train_abs

	UpperCAmelCase__   :					int   				=   """train[15%:-20%]"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == spec_train_pct

	UpperCAmelCase__   :					Optional[int]   				=   """train[:10%](closest)"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == "train[:10%]"

	UpperCAmelCase__   :					List[str]   				=   """train[:10%](pct1_dropremainder)"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == spec_train_pct_rounding

	UpperCAmelCase__   :					Optional[int]   				=   """train[:10%](pct1_dropremainder)+test[-10%:](pct1_dropremainder)"""
	assert ReadInstruction.from_spec(__UpperCamelCase ).to_spec() == spec_train_test_pct_rounding
def 					lowerCAmelCase  (   ):
	'''simple docstring'''





	UpperCAmelCase__   :					Tuple   				=   """dummy"""
	UpperCAmelCase__   :					Optional[Any]   				=   [SplitInfo(name="""train"""							,      num_examples=100 )]
	UpperCAmelCase__   :					int   				=   """train[:33%]"""
	UpperCAmelCase__   :					Optional[Any]   				=   """arrow"""
	UpperCAmelCase__   :					Optional[int]   				=   """prefix"""

	UpperCAmelCase__   :					str   				=   make_file_instructions(__UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase )
	assert isinstance(__UpperCamelCase							,      __UpperCamelCase )
	assert file_instructions.num_examples == 33
	assert file_instructions.file_instructions == [
	    {"filename": os.path.join(__UpperCamelCase							,      F"{name}-train.arrow" ), "skip": 0, "take": 33}
	]

	UpperCAmelCase__   :					Dict   				=   [SplitInfo(name="""train"""							,      num_examples=100							,      shard_lengths=[10] * 10 )]
	UpperCAmelCase__   :					int   				=   make_file_instructions(__UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase )
	assert isinstance(__UpperCamelCase							,      __UpperCamelCase )
	assert file_instructions.num_examples == 33
	assert file_instructions.file_instructions == [
	    {"filename": os.path.join(__UpperCamelCase							,      F"{name}-train-00000-of-00010.arrow" ), "skip": 0, "take": -1},
	    {"filename": os.path.join(__UpperCamelCase							,      F"{name}-train-00001-of-00010.arrow" ), "skip": 0, "take": -1},
	    {"filename": os.path.join(__UpperCamelCase							,      F"{name}-train-00002-of-00010.arrow" ), "skip": 0, "take": -1},
	    {"filename": os.path.join(__UpperCamelCase							,      F"{name}-train-00003-of-00010.arrow" ), "skip": 0, "take": 3},
	]




@pytest.mark.parametrize("""name, expected_exception"""							,      [(None, TypeError), ("""""", ValueError)] )
def 					lowerCAmelCase  (   __UpperCamelCase							,      __UpperCamelCase ):
	'''simple docstring'''





	UpperCAmelCase__   :					Any   				=   [SplitInfo(name="""train"""							,      num_examples=100 )]
	UpperCAmelCase__   :					List[Any]   				=   """train"""
	UpperCAmelCase__   :					Tuple   				=   """arrow"""
	UpperCAmelCase__   :					Optional[Any]   				=   """prefix_path"""
	with pytest.raises(__UpperCamelCase ):
		UpperCAmelCase__   :					int   				=   make_file_instructions(__UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase							,      __UpperCamelCase )








"""simple docstring"""




def 					lowerCAmelCase  (   __UpperCamelCase ):
 '''simple docstring'''





 UpperCAmelCase__   :					Union[str, Any]   				=   1
 UpperCAmelCase__   :					Union[str, Any]   				=   0
 UpperCAmelCase__   :					List[str]   				=   1
 UpperCAmelCase__   :					Any   				=   1
 UpperCAmelCase__   :					Optional[int]   				=   3
 UpperCAmelCase__   :					Any   				=   3
 UpperCAmelCase__   :					Optional[Any]   				=   limit
 UpperCAmelCase__   :					Dict   				=   0

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

   if decimal == counter:
    break

   counter += 1
   UpperCAmelCase__   :					Union[str, Any]   				=   10 * (r - n * t)
   UpperCAmelCase__   :					int   				=   ((10 * (3 * q + r)) // t) - 10 * n
   q *= 10
   UpperCAmelCase__   :					str   				=   nr
  else:
   UpperCAmelCase__   :					List[str]   				=   (2 * q + r) * l
   UpperCAmelCase__   :					Union[str, Any]   				=   (q * (7 * k) + 2 + (r * l)) // (t * l)
   q *= k
   t *= l
   l += 2
   k += 1
   UpperCAmelCase__   :					Optional[Any]   				=   nn
   UpperCAmelCase__   :					str   				=   nr
 return result
def 					lowerCAmelCase  (   ):
 '''simple docstring'''





 print(F"{calculate_pi(50 ) = }" )
 import doctest

 doctest.testmod()


if __name__ == "__main__":
      main()





