

"""simple docstring"""






import itertools
from dataclasses import dataclass
from typing import Any, Callable, Dict, List, Optional, Union

import pandas as pd
import pyarrow as pa

import datasets
import datasets.config
from datasets.features.features import require_storage_cast
from datasets.table import table_cast
from datasets.utils.py_utils import Literal


snake_case_   :   List[str]        =       datasets.utils.logging.get_logger(__name__)

snake_case_   :   Dict        =       ["""names""", """prefix"""]
snake_case_   :   int        =       ["""warn_bad_lines""", """error_bad_lines""", """mangle_dupe_cols"""]
snake_case_   :   str        =       ["""encoding_errors""", """on_bad_lines"""]
snake_case_   :   int        =       ["""date_format"""]







@dataclass
class       snake_case__  ( datasets.BuilderConfig     ):
			SCREAMING_SNAKE_CASE__     				=						","
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						"infer"
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						False
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						False
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						"."
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						'"'
			SCREAMING_SNAKE_CASE__     				=						0
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						0
			SCREAMING_SNAKE_CASE__     				=						True
			SCREAMING_SNAKE_CASE__     				=						False
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						10000
			SCREAMING_SNAKE_CASE__     				=						None
			SCREAMING_SNAKE_CASE__     				=						"strict"
			SCREAMING_SNAKE_CASE__     				=						"error"
			SCREAMING_SNAKE_CASE__     				=						None







			def 			__lowerCAmelCase				(			self			: Optional[Any]  ):





								'''simple docstring'''



								if self.delimiter is not None:
													UpperCAmelCase			:   Dict      =				self.delimiter
								if self.column_names is not None:
													UpperCAmelCase			:   Dict      =				self.column_names







			@property
			def 			__lowerCAmelCase				(			self			: List[str]  ):





								'''simple docstring'''



								UpperCAmelCase			:   Optional[int]      =				{
								    "sep": self.sep,
								    "header": self.header,
								    "names": self.names,
								    "index_col": self.index_col,
								    "usecols": self.usecols,
								    "prefix": self.prefix,
								    "mangle_dupe_cols": self.mangle_dupe_cols,
								    "engine": self.engine,
								    "converters": self.converters,
								    "true_values": self.true_values,
								    "false_values": self.false_values,
								    "skipinitialspace": self.skipinitialspace,
								    "skiprows": self.skiprows,
								    "nrows": self.nrows,
								    "na_values": self.na_values,
								    "keep_default_na": self.keep_default_na,
								    "na_filter": self.na_filter,
								    "verbose": self.verbose,
								    "skip_blank_lines": self.skip_blank_lines,
								    "thousands": self.thousands,
								    "decimal": self.decimal,
								    "lineterminator": self.lineterminator,
								    "quotechar": self.quotechar,
								    "quoting": self.quoting,
								    "escapechar": self.escapechar,
								    "comment": self.comment,
								    "encoding": self.encoding,
								    "dialect": self.dialect,
								    "error_bad_lines": self.error_bad_lines,
								    "warn_bad_lines": self.warn_bad_lines,
								    "skipfooter": self.skipfooter,
								    "doublequote": self.doublequote,
								    "memory_map": self.memory_map,
								    "float_precision": self.float_precision,
								    "chunksize": self.chunksize,
								    "encoding_errors": self.encoding_errors,
								    "on_bad_lines": self.on_bad_lines,
								    "date_format": self.date_format,
								}

								# some kwargs must not be passed if they don't have a default value
								# some others are deprecated and we can also not pass them if they are the default value
								for pd_read_csv_parameter in _PANDAS_READ_CSV_NO_DEFAULT_PARAMETERS + _PANDAS_READ_CSV_DEPRECATED_PARAMETERS:
													if pd_read_csv_kwargs[pd_read_csv_parameter] == getattr(CsvConfig()			,  lowercase  ):
																		del pd_read_csv_kwargs[pd_read_csv_parameter]

        # Remove 2.0 new arguments
								if not (datasets.config.PANDAS_VERSION.major >= 2):
													for pd_read_csv_parameter in _PANDAS_READ_CSV_NEW_2_0_0_PARAMETERS:
																		del pd_read_csv_kwargs[pd_read_csv_parameter]

        # Remove 1.3 new arguments
								if not (datasets.config.PANDAS_VERSION.major >= 1 and datasets.config.PANDAS_VERSION.minor >= 3):
													for pd_read_csv_parameter in _PANDAS_READ_CSV_NEW_1_3_0_PARAMETERS:
																		del pd_read_csv_kwargs[pd_read_csv_parameter]

								return pd_read_csv_kwargs







class       snake_case__  ( datasets.ArrowBasedBuilder     ):
			SCREAMING_SNAKE_CASE__     				=						CsvConfig







			def 			__lowerCAmelCase				(			self			: Any  ):





								'''simple docstring'''



								return datasets.DatasetInfo(features=self.config.features  )







			def 			__lowerCAmelCase				(			self			: Optional[int]			,  lowercase			: Optional[Any]  ):





								'''simple docstring'''



								if not self.config.data_files:
													raise ValueError(f"""At least one data file must be specified, but got data_files={self.config.data_files}"""  )
								UpperCAmelCase			:   int      =				dl_manager.download_and_extract(self.config.data_files  )
								if isinstance(lowercase			,  (str, list, tuple)  ):
													UpperCAmelCase			:   str      =				data_files
													if isinstance(lowercase			,  lowercase  ):
																		UpperCAmelCase			:   Optional[int]      =				[files]
													UpperCAmelCase			:   Tuple      =				[dl_manager.iter_files(lowercase  ) for file in files]
													return [datasets.SplitGenerator(name=datasets.Split.TRAIN			,  gen_kwargs={"files": files}  )]
								UpperCAmelCase			:   Union[str, Any]      =				[]
								for split_name, files in data_files.items():
													if isinstance(lowercase			,  lowercase  ):
																		UpperCAmelCase			:   List[str]      =				[files]
													UpperCAmelCase			:   Tuple      =				[dl_manager.iter_files(lowercase  ) for file in files]
													splits.append(datasets.SplitGenerator(name=lowercase			,  gen_kwargs={"files": files}  )  )
								return splits







			def 			__lowerCAmelCase				(			self			: List[Any]			,  lowercase			: pa.Table  ):





								'''simple docstring'''



								if self.config.features is not None:
													UpperCAmelCase			:   int      =				self.config.features.arrow_schema
													if all(not require_storage_cast(lowercase  ) for feature in self.config.features.values()  ):
																		# cheaper cast
																		UpperCAmelCase			:   str      =				pa.Table.from_arrays([pa_table[field.name] for field in schema]			,  schema=lowercase  )
													else:
																		# more expensive cast; allows str <-> int/float or str to Audio for example
																		UpperCAmelCase			:   Tuple      =				table_cast(lowercase			,  lowercase  )
								return pa_table







			def 			__lowerCAmelCase				(			self			: str			,  lowercase			: Optional[Any]  ):





								'''simple docstring'''



								UpperCAmelCase			:   Any      =				self.config.features.arrow_schema if self.config.features else None
								# dtype allows reading an int column as str
								UpperCAmelCase			:   Tuple      =				(
								    {
								        name: dtype.to_pandas_dtype() if not require_storage_cast(lowercase  ) else object
								        for name, dtype, feature in zip(schema.names			,  schema.types			,  self.config.features.values()  )
								    }
								    if schema is not None
								    else None
								)
								for file_idx, file in enumerate(itertools.chain.from_iterable(lowercase  )  ):
													UpperCAmelCase			:   List[Any]      =				pd.read_csv(lowercase			,  iterator=lowercase			,  dtype=lowercase			,  **self.config.pd_read_csv_kwargs  )
													try:
																		for batch_idx, df in enumerate(lowercase  ):
																							UpperCAmelCase			:   Optional[int]      =				pa.Table.from_pandas(lowercase  )
																							# Uncomment for debugging (will print the Arrow table size and elements)
																							# logger.warning(f"pa_table: {pa_table} num rows: {pa_table.num_rows}")
																							# logger.warning('\n'.join(str(pa_table.slice(i, 1).to_pydict()) for i in range(pa_table.num_rows)))
																							yield (file_idx, batch_idx), self._cast_table(lowercase  )
													except ValueError as e:
																		logger.error(f"""Failed to read file '{file}' with error {type(lowercase  )}: {e}"""  )
																		raise





"""simple docstring"""






from typing import Any







class       snake_case__  :







			def __init__(			self			: Union[str, Any]			,  lowercase			: Any  ):





								'''simple docstring'''



								UpperCAmelCase			:   Dict      =				data
								UpperCAmelCase			:   Optional[Any]      =				None







			def __repr__(			self			: str  ):





								'''simple docstring'''



								return f"""Node({self.data})"""







class       snake_case__  :







			def __init__(			self			: Optional[Any]  ):





								'''simple docstring'''



								UpperCAmelCase			:   Optional[Any]      =				None







			def __iter__(			self			: Dict  ):





								'''simple docstring'''



								UpperCAmelCase			:   str      =				self.head
								while node:
													yield node.data
													UpperCAmelCase			:   Tuple      =				node.next







			def __len__(			self			: Tuple  ):





								'''simple docstring'''



								return sum(1 for _ in self  )







			def __repr__(			self			: Any  ):





								'''simple docstring'''



								return "->".join([str(lowercase  ) for item in self]  )







			def __getitem__(			self			: List[str]			,  lowercase			: int  ):





								'''simple docstring'''



								if not 0 <= index < len(self  ):
													raise ValueError("list index out of range."  )
								for i, node in enumerate(self  ):
													if i == index:
																		return node
								return None







			def __setitem__(			self			: str			,  lowercase			: int			,  lowercase			: Any  ):





								'''simple docstring'''



								if not 0 <= index < len(self  ):
													raise ValueError("list index out of range."  )
								UpperCAmelCase			:   List[str]      =				self.head
								for _ in range(lowercase  ):
													UpperCAmelCase			:   List[Any]      =				current.next
								UpperCAmelCase			:   List[str]      =				data







			def 			__lowerCAmelCase				(			self			: Optional[Any]			,  lowercase			: Any  ):





								'''simple docstring'''



								self.insert_nth(len(self  )			,  lowercase  )







			def 			__lowerCAmelCase				(			self			: List[str]			,  lowercase			: Any  ):





								'''simple docstring'''



								self.insert_nth(0			,  lowercase  )







			def 			__lowerCAmelCase				(			self			: List[str]			,  lowercase			: int			,  lowercase			: Any  ):





								'''simple docstring'''



								if not 0 <= index <= len(self  ):
													raise IndexError("list index out of range"  )
								UpperCAmelCase			:   List[Any]      =				Node(lowercase  )
								if self.head is None:
													UpperCAmelCase			:   Optional[Any]      =				new_node
								elif index == 0:
													UpperCAmelCase			:   Optional[int]      =				self.head  # link new_node to head
													UpperCAmelCase			:   Optional[Any]      =				new_node
								else:
													UpperCAmelCase			:   Optional[int]      =				self.head
													for _ in range(index - 1  ):
																		UpperCAmelCase			:   Union[str, Any]      =				temp.next
													UpperCAmelCase			:   Dict      =				temp.next
													UpperCAmelCase			:   Any      =				new_node







			def 			__lowerCAmelCase				(			self			: Dict  ):  # print every node data





								'''simple docstring'''



								print(self  )







			def 			__lowerCAmelCase				(			self			: Optional[Any]  ):





								'''simple docstring'''



								return self.delete_nth(0  )







			def 			__lowerCAmelCase				(			self			: str  ):  # delete from tail





								'''simple docstring'''



								return self.delete_nth(len(self  ) - 1  )







			def 			__lowerCAmelCase				(			self			: Optional[Any]			,  lowercase			: int = 0  ):





								'''simple docstring'''



								if not 0 <= index <= len(self  ) - 1:  # test if index is valid
													raise IndexError("List index out of range."  )
								UpperCAmelCase			:   List[str]      =				self.head  # default first node
								if index == 0:
													UpperCAmelCase			:   Tuple      =				self.head.next
								else:
													UpperCAmelCase			:   Union[str, Any]      =				self.head
													for _ in range(index - 1  ):
																		UpperCAmelCase			:   Dict      =				temp.next
													UpperCAmelCase			:   Optional[Any]      =				temp.next
													UpperCAmelCase			:   int      =				temp.next.next
								return delete_node.data







			def 			__lowerCAmelCase				(			self			: List[Any]  ):





								'''simple docstring'''



								return self.head is None







			def 			__lowerCAmelCase				(			self			: int  ):





								'''simple docstring'''



								UpperCAmelCase			:   List[Any]      =				None
								UpperCAmelCase			:   str      =				self.head

								while current:
													# Store the current node's next node.
													UpperCAmelCase			:   List[Any]      =				current.next
													# Make the current node's next point backwards
													UpperCAmelCase			:   List[str]      =				prev
													# Make the previous node be the current node
													UpperCAmelCase			:   Optional[Any]      =				current
													# Make the current node the next node (to progress iteration)
													UpperCAmelCase			:   Any      =				next_node
								# Return prev in order to put the head at the end
								UpperCAmelCase			:   List[str]      =				prev



def   lowercase_	(    ):




					'''simple docstring'''






					UpperCAmelCase			:   Optional[int]      =				LinkedList()
					assert linked_list.is_empty() is True
					assert str(_lowercase	) == ""

					try:
										linked_list.delete_head()
										raise AssertionError  # This should not happen.
					except IndexError:
										assert True  # This should happen.

					try:
										linked_list.delete_tail()
										raise AssertionError  # This should not happen.
					except IndexError:
										assert True  # This should happen.

					for i in range(10	):
										assert len(_lowercase	) == i
										linked_list.insert_nth(_lowercase							,      i + 1	)
					assert str(_lowercase	) == "->".join(str(_lowercase	) for i in range(1							,      11	)	)

					linked_list.insert_head(0	)
					linked_list.insert_tail(11	)
					assert str(_lowercase	) == "->".join(str(_lowercase	) for i in range(0							,      12	)	)

					assert linked_list.delete_head() == 0
					assert linked_list.delete_nth(9	) == 10
					assert linked_list.delete_tail() == 11
					assert len(_lowercase	) == 9
					assert str(_lowercase	) == "->".join(str(_lowercase	) for i in range(1							,      10	)	)

					assert all(linked_list[i] == i + 1 for i in range(0							,      9	)	) is True

					for i in range(0							,      9	):
										UpperCAmelCase			:   Union[str, Any]      =				-i
					assert all(linked_list[i] == -i for i in range(0							,      9	)	) is True

					linked_list.reverse()
					assert str(_lowercase	) == "->".join(str(_lowercase	) for i in range(-8							,      1	)	)



def   lowercase_	(    ):




					'''simple docstring'''






					UpperCAmelCase			:   Optional[Any]      =				[
					    -9,
					    1_00,
					    Node(77_34_51_12	),
					    "dlrow olleH",
					    7,
					    55_55,
					    0,
					    -1_9_2.5_5_5_5_5,
					    "Hello, world!",
					    7_7.9,
					    Node(10	),
					    None,
					    None,
					    1_2.2_0,
					]
					UpperCAmelCase			:   Optional[Any]      =				LinkedList()

					for i in test_input:
										linked_list.insert_tail(_lowercase	)

					# Check if it's empty or not
					assert linked_list.is_empty() is False
					assert (
					    str(_lowercase	) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
					    "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
					)

					# Delete the head
					UpperCAmelCase			:   Tuple      =				linked_list.delete_head()
					assert result == -9
					assert (
					    str(_lowercase	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
					    "Hello, world!->77.9->Node(10)->None->None->12.2"
					)

					# Delete the tail
					UpperCAmelCase			:   Any      =				linked_list.delete_tail()
					assert result == 1_2.2
					assert (
					    str(_lowercase	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
					    "Hello, world!->77.9->Node(10)->None->None"
					)

					# Delete a node in specific location in linked list
					UpperCAmelCase			:   Union[str, Any]      =				linked_list.delete_nth(10	)
					assert result is None
					assert (
					    str(_lowercase	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
					    "Hello, world!->77.9->Node(10)->None"
					)

					# Add a Node instance to its head
					linked_list.insert_head(Node("Hello again, world!"	)	)
					assert (
					    str(_lowercase	)
					    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
					    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
					)

					# Add None to its tail
					linked_list.insert_tail(_lowercase	)
					assert (
					    str(_lowercase	)
					    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
					    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
					)

					# Reverse the linked list
					linked_list.reverse()
					assert (
					    str(_lowercase	)
					    == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
					    "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
					)



def   lowercase_	(    ):




					'''simple docstring'''






					from doctest import testmod

					testmod()

					UpperCAmelCase			:   Any      =				LinkedList()
					linked_list.insert_head(input("Inserting 1st at head "	).strip()	)
					linked_list.insert_head(input("Inserting 2nd at head "	).strip()	)
					print("\nPrint list:"	)
					linked_list.print_list()
					linked_list.insert_tail(input("\nInserting 1st at tail "	).strip()	)
					linked_list.insert_tail(input("Inserting 2nd at tail "	).strip()	)
					print("\nPrint list:"	)
					linked_list.print_list()
					print("\nDelete head"	)
					linked_list.delete_head()
					print("Delete tail"	)
					linked_list.delete_tail()
					print("\nPrint list:"	)
					linked_list.print_list()
					print("\nReverse linked list"	)
					linked_list.reverse()
					print("\nPrint list:"	)
					linked_list.print_list()
					print("\nString representation of linked list:"	)
					print(_lowercase	)
					print("\nReading/changing Node data using indexing:"	)
					print(F"""Element at Position 1: {linked_list[1]}"""	)
					UpperCAmelCase			:   int      =				input("Enter New Value: "	).strip()
					print("New list:"	)
					print(_lowercase	)
					print(F"""length of linked_list is : {len(_lowercase	)}"""	)


if __name__ == "__main__":
	main()


