






import itertools
import json
import os
import unittest

from transformers import AddedToken, RobertaTokenizer, RobertaTokenizerFast
from transformers.models.roberta.tokenization_roberta import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers, slow

from ...test_tokenization_common import TokenizerTesterMixin

@require_tokenizers
class 		lowerCAmelCase     ( __a      ,       unittest.TestCase			):

					'''simple docstring'''

					_A						:			Dict									=      RobertaTokenizer
					_A						:			Dict									=      RobertaTokenizerFast
					_A						:			Optional[Any]									=      True
					_A						:			List[str]									=      {'''cls_token''': '''<s>'''}



					def       lowerCAmelCase				(  self				:	str							)			->  Dict:


												"""simple docstring"""

												super().setUp()

												# Adapted from Sennrich et al. 2015 and https://github.com/rsennrich/subword-nmt
												__lowercase      :							Union[str, Any]				=     [
												    """l""",
												    """o""",
												    """w""",
												    """e""",
												    """r""",
												    """s""",
												    """t""",
												    """i""",
												    """d""",
												    """n""",
												    """\u0120""",
												    """\u0120l""",
												    """\u0120n""",
												    """\u0120lo""",
												    """\u0120low""",
												    """er""",
												    """\u0120lowest""",
												    """\u0120newer""",
												    """\u0120wider""",
												    """<unk>""",
												]
												__lowercase      :							List[str]				=     dict(zip(__a		,     range(len(__a							)							)							)							)
												__lowercase      :							Tuple				=     ["""#version: 0.2""", """\u0120 l""", """\u0120l o""", """\u0120lo w""", """e r""", """"""]
												__lowercase      :							List[str]				=     {"""unk_token""": """<unk>"""}

												__lowercase      :							Union[str, Any]				=     os.path.join(self.tmpdirname		,     VOCAB_FILES_NAMES["""vocab_file"""]							)
												__lowercase      :							Any				=     os.path.join(self.tmpdirname		,     VOCAB_FILES_NAMES["""merges_file"""]							)
												with open(self.vocab_file		,     """w"""		,     encoding="""utf-8"""							) as fp:
																			fp.write(json.dumps(__a							) + """\n"""							)
												with open(self.merges_file		,     """w"""		,     encoding="""utf-8"""							) as fp:
																			fp.write("""\n""".join(__a							)							)



					def       lowerCAmelCase				(  self				:	Dict		,     **__a				:	Optional[int]							)			->  int:


												"""simple docstring"""

												kwargs.update(self.special_tokens_map							)
												return self.tokenizer_class.from_pretrained(self.tmpdirname		,     **__a							)



					def       lowerCAmelCase				(  self				:	str		,     **__a				:	Tuple							)			->  Any:


												"""simple docstring"""

												kwargs.update(self.special_tokens_map							)
												return RobertaTokenizerFast.from_pretrained(self.tmpdirname		,     **__a							)



					def       lowerCAmelCase				(  self				:	Union[str, Any]		,     __a				:	Any							)			->  Tuple:


												"""simple docstring"""

												__lowercase      :							Union[str, Any]				=     """lower newer"""
												__lowercase      :							Optional[Any]				=     """lower newer"""
												return input_text, output_text



					def       lowerCAmelCase				(  self				:	str							)			->  Dict:


												"""simple docstring"""

												__lowercase      :							Optional[int]				=     self.tokenizer_class(self.vocab_file		,     self.merges_file		,     **self.special_tokens_map							)
												__lowercase      :							Dict				=     """lower newer"""
												__lowercase      :							Dict				=     ["""l""", """o""", """w""", """er""", """\u0120""", """n""", """e""", """w""", """er"""]
												__lowercase      :							List[Any]				=     tokenizer.tokenize(__a							)  # , add_prefix_space=True)
												self.assertListEqual(__a		,     __a							)

												__lowercase      :							int				=     tokens + [tokenizer.unk_token]
												__lowercase      :							List[Any]				=     [0, 1, 2, 15, 10, 9, 3, 2, 15, 19]
												self.assertListEqual(tokenizer.convert_tokens_to_ids(__a							)		,     __a							)



					def       lowerCAmelCase				(  self				:	Tuple							)			->  Optional[Any]:


												"""simple docstring"""

												__lowercase      :							Dict				=     self.get_tokenizer()

												self.assertListEqual(tokenizer.encode("""Hello world!"""		,     add_special_tokens=__a							)		,     [0, 31414, 232, 328, 2]							)
												self.assertListEqual(
												    tokenizer.encode("""Hello world! cécé herlolip 418"""		,     add_special_tokens=__a							)		,     [0, 31414, 232, 328, 740, 1140, 12695, 69, 46078, 1588, 2]		,     )



					@slow
					def       lowerCAmelCase				(  self				:	Optional[Any]							)			->  List[str]:


												"""simple docstring"""

												__lowercase      :							Union[str, Any]				=     self.tokenizer_class.from_pretrained("""roberta-base"""							)

												__lowercase      :							int				=     tokenizer.encode("""sequence builders"""		,     add_special_tokens=__a							)
												__lowercase      :							Dict				=     tokenizer.encode("""multi-sequence build"""		,     add_special_tokens=__a							)

												__lowercase      :							Optional[int]				=     tokenizer.encode(
												    """sequence builders"""		,     add_special_tokens=__a		,     add_prefix_space=__a							)
												__lowercase      :							Dict				=     tokenizer.encode(
												    """sequence builders"""		,     """multi-sequence build"""		,     add_special_tokens=__a		,     add_prefix_space=__a							)

												__lowercase      :							Union[str, Any]				=     tokenizer.build_inputs_with_special_tokens(__a							)
												__lowercase      :							Dict				=     tokenizer.build_inputs_with_special_tokens(__a		,     __a							)

												assert encoded_sentence == encoded_text_from_decode
												assert encoded_pair == encoded_pair_from_decode



					def       lowerCAmelCase				(  self				:	int							)			->  str:


												"""simple docstring"""

												__lowercase      :							Dict				=     self.get_tokenizer()

												__lowercase      :							str				=     """Encode this sequence."""
												__lowercase      :							Optional[int]				=     tokenizer.byte_encoder[""" """.encode("""utf-8"""							)[0]]

												# Testing encoder arguments
												__lowercase      :							Union[str, Any]				=     tokenizer.encode(__a		,     add_special_tokens=__a		,     add_prefix_space=__a							)
												__lowercase      :							str				=     tokenizer.convert_ids_to_tokens(encoded[0]							)[0]
												self.assertNotEqual(__a		,     __a							)

												__lowercase      :							List[Any]				=     tokenizer.encode(__a		,     add_special_tokens=__a		,     add_prefix_space=__a							)
												__lowercase      :							Optional[int]				=     tokenizer.convert_ids_to_tokens(encoded[0]							)[0]
												self.assertEqual(__a		,     __a							)

												tokenizer.add_special_tokens({"""bos_token""": """<s>"""}							)
												__lowercase      :							Tuple				=     tokenizer.encode(__a		,     add_special_tokens=__a							)
												__lowercase      :							Union[str, Any]				=     tokenizer.convert_ids_to_tokens(encoded[1]							)[0]
												self.assertNotEqual(__a		,     __a							)

												# Testing spaces after special tokens
												__lowercase      :							List[str]				=     """<mask>"""
												tokenizer.add_special_tokens(
												    {"""mask_token""": AddedToken(__a		,     lstrip=__a		,     rstrip=__a							)}							)  # mask token has a left space
												__lowercase      :							Dict				=     tokenizer.convert_tokens_to_ids(__a							)

												__lowercase      :							List[Any]				=     """Encode <mask> sequence"""
												__lowercase      :							Tuple				=     """Encode <mask>sequence"""

												__lowercase      :							Optional[int]				=     tokenizer.encode(__a							)
												__lowercase      :							Union[str, Any]				=     encoded.index(__a							)
												__lowercase      :							Optional[int]				=     tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]							)[0]
												self.assertEqual(__a		,     __a							)

												__lowercase      :							List[str]				=     tokenizer.encode(__a							)
												__lowercase      :							str				=     encoded.index(__a							)
												__lowercase      :							Any				=     tokenizer.convert_ids_to_tokens(encoded[mask_loc + 1]							)[0]
												self.assertNotEqual(__a		,     __a							)



					def       lowerCAmelCase				(  self				:	str							)			->  List[str]:


												"""simple docstring"""

												pass



					def       lowerCAmelCase				(  self				:	str							)			->  Dict:


												"""simple docstring"""

												for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
																			with self.subTest(F"{tokenizer.__class__.__name__} ({pretrained_name})"							):
																										__lowercase      :							Dict				=     self.rust_tokenizer_class.from_pretrained(__a		,     **__a							)
																										__lowercase      :							List[Any]				=     self.tokenizer_class.from_pretrained(__a		,     **__a							)
																										__lowercase      :							str				=     """A, <mask> AllenNLP sentence."""
																										__lowercase      :							List[str]				=     tokenizer_r.encode_plus(__a		,     add_special_tokens=__a		,     return_token_type_ids=__a							)
																										__lowercase      :							Optional[int]				=     tokenizer_p.encode_plus(__a		,     add_special_tokens=__a		,     return_token_type_ids=__a							)

																										# token_type_ids should put 0 everywhere
																										self.assertEqual(sum(tokens_r["""token_type_ids"""]							)		,     sum(tokens_p["""token_type_ids"""]							)							)

																										# attention_mask should put 1 everywhere, so sum over length should be 1
																										self.assertEqual(
																										    sum(tokens_r["""attention_mask"""]							) / len(tokens_r["""attention_mask"""]							)		,     sum(tokens_p["""attention_mask"""]							) / len(tokens_p["""attention_mask"""]							)		,     )

																										__lowercase      :							Optional[Any]				=     tokenizer_r.convert_ids_to_tokens(tokens_r["""input_ids"""]							)
																										__lowercase      :							Union[str, Any]				=     tokenizer_p.convert_ids_to_tokens(tokens_p["""input_ids"""]							)

																										# Rust correctly handles the space before the mask while python doesnt
																										self.assertSequenceEqual(tokens_p["""input_ids"""]		,     [0, 250, 6, 50264, 3823, 487, 21992, 3645, 4, 2]							)
																										self.assertSequenceEqual(tokens_r["""input_ids"""]		,     [0, 250, 6, 50264, 3823, 487, 21992, 3645, 4, 2]							)

																										self.assertSequenceEqual(
																										    __a		,     ["""<s>""", """A""", """,""", """<mask>""", """ĠAllen""", """N""", """LP""", """Ġsentence""", """.""", """</s>"""]							)
																										self.assertSequenceEqual(
																										    __a		,     ["""<s>""", """A""", """,""", """<mask>""", """ĠAllen""", """N""", """LP""", """Ġsentence""", """.""", """</s>"""]							)



					def       lowerCAmelCase				(  self				:	Dict							)			->  Optional[Any]:


												"""simple docstring"""

												for trim_offsets, add_prefix_space in itertools.product([True, False]		,     repeat=2							):
																			__lowercase      :							Dict				=     self.rust_tokenizer_class.from_pretrained(
																			    self.tmpdirname		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)

																			__lowercase      :							List[str]				=     json.loads(tokenizer_r.backend_tokenizer.pre_tokenizer.__getstate__()							)
																			__lowercase      :							Any				=     json.loads(tokenizer_r.backend_tokenizer.post_processor.__getstate__()							)

																			self.assertEqual(pre_tokenizer_state["""add_prefix_space"""]		,     __a							)

																			self.assertEqual(post_processor_state["""add_prefix_space"""]		,     __a							)
																			self.assertEqual(post_processor_state["""trim_offsets"""]		,     __a							)



					def       lowerCAmelCase				(  self				:	Union[str, Any]							)			->  List[Any]:


												"""simple docstring"""

												for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
																			with self.subTest(F"{tokenizer.__class__.__name__} ({pretrained_name})"							):
																										__lowercase      :							int				=     """hello"""  # `hello` is a token in the vocabulary of `pretrained_name`
																										__lowercase      :							List[Any]				=     F"{text_of_1_token} {text_of_1_token}"

																										__lowercase      :							Any				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Optional[int]				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (len(__a							) + 1, len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							int				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Union[str, Any]				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (len(__a							) + 1, len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							Optional[Any]				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							int				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (len(__a							), len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							Dict				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Any				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (len(__a							), len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							Dict				=     F" {text}"

																										# tokenizer_r = self.rust_tokenizer_class.from_pretrained(
																										#     pretrained_name, use_fast=True, add_prefix_space=True, trim_offsets=True
																										# )
																										# encoding = tokenizer_r(text, return_offsets_mapping=True, add_special_tokens=False)
																										# self.assertEqual(encoding.offset_mapping[0], (1, 1 + len(text_of_1_token)))
																										# self.assertEqual(
																										#     encoding.offset_mapping[1],
																										#     (1 + len(text_of_1_token) + 1, 1 + len(text_of_1_token) + 1 + len(text_of_1_token)),
																										# )

																										__lowercase      :							Union[str, Any]				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Optional[int]				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (1, 1 + len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (1 + len(__a							) + 1, 1 + len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							int				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Optional[int]				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, 1 + len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (1 + len(__a							), 1 + len(__a							) + 1 + len(__a							))		,     )

																										__lowercase      :							Any				=     self.rust_tokenizer_class.from_pretrained(
																										    __a		,     use_fast=__a		,     add_prefix_space=__a		,     trim_offsets=__a							)
																										__lowercase      :							Union[str, Any]				=     tokenizer_r(__a		,     return_offsets_mapping=__a		,     add_special_tokens=__a							)
																										self.assertEqual(encoding.offset_mapping[0]		,     (0, 1 + len(__a							))							)
																										self.assertEqual(
																										    encoding.offset_mapping[1]		,     (1 + len(__a							), 1 + len(__a							) + 1 + len(__a							))		,     )







import logging
import os
import threading
import time


try:
	import warnings
except ImportError:
	lowerCamelCase : Any						   =       None

try:
	import msvcrt
except ImportError:
	lowerCamelCase : str						   =       None

try:
	import fcntl
except ImportError:
	lowerCamelCase : Optional[Any]						   =       None


# Backward compatibility
# ------------------------------------------------
try:
	TimeoutError
except NameError:
	lowerCamelCase : Union[str, Any]						   =       OSError


# Data
# ------------------------------------------------
lowerCamelCase : Tuple						   =       [
    '''Timeout''',
    '''BaseFileLock''',
    '''WindowsFileLock''',
    '''UnixFileLock''',
    '''SoftFileLock''',
    '''FileLock''',
]

lowerCamelCase : Tuple						   =       '''3.0.12'''


lowerCamelCase : Any						   =       None
def       snake_case_		(     ):
							global _logger
							__lowercase      :							List[str]				=     _logger or logging.getLogger(__name__      )
							return _logger

class 		lowerCAmelCase     ( __a			):

					'''simple docstring'''

					def __init__(  self				:	Any		,     __a				:	Any							)			->  List[Any]:


												"""simple docstring"""

												__lowercase      :							List[str]				=     lock_file
												return None



					def __str__(  self				:	str							)			->  Any:


												"""simple docstring"""

												__lowercase      :							Any				=     F"The file lock '{self.lock_file}' could not be acquired."
												return temp







class 		lowerCAmelCase     :

					'''simple docstring'''

					def __init__(  self				:	List[Any]		,     __a				:	Optional[int]							)			->  int:


												"""simple docstring"""

												__lowercase      :							Optional[Any]				=     lock
												return None



					def __enter__(  self				:	Dict							)			->  Dict:


												"""simple docstring"""

												return self.lock



					def __exit__(  self				:	Optional[int]		,     __a				:	Dict		,     __a				:	Any		,     __a				:	Tuple							)			->  Optional[Any]:


												"""simple docstring"""

												self.lock.release()
												return None







class 		lowerCAmelCase     :

					'''simple docstring'''

					def __init__(  self				:	Tuple		,     __a				:	Any		,     __a				:	Dict=-1		,     __a				:	Optional[Any]=None							)			->  Any:


												"""simple docstring"""

												__lowercase      :							Optional[int]				=     max_filename_length if max_filename_length is not None else 255
												# Hash the filename if it's too long
												__lowercase      :							Dict				=     self.hash_filename_if_too_long(__a		,     __a							)
												# The path to the lock file.
												__lowercase      :							Optional[Any]				=     lock_file

												# The file descriptor for the *_lock_file* as it is returned by the
												# os.open() function.
												# This file lock is only NOT None, if the object currently holds the
												# lock.
												__lowercase      :							int				=     None

												# The default timeout value.
												__lowercase      :							Optional[int]				=     timeout

												# We use this lock primarily for the lock counter.
												__lowercase      :							Optional[Any]				=     threading.Lock()

												# The lock counter is used for implementing the nested locking
												# mechanism. Whenever the lock is acquired, the counter is increased and
												# the lock is only released, when this value is 0 again.
												__lowercase      :							Union[str, Any]				=     0
												return None



					@property
					def       lowerCAmelCase				(  self				:	Optional[Any]							)			->  Optional[int]:


												"""simple docstring"""

												return self._lock_file



					@property
					def       lowerCAmelCase				(  self				:	Optional[int]							)			->  Optional[Any]:


												"""simple docstring"""

												return self._timeout



					@timeout.setter
					def       lowerCAmelCase				(  self				:	Tuple		,     __a				:	Tuple							)			->  Dict:


												"""simple docstring"""

												__lowercase      :							Tuple				=     float(__a							)
												return None



					def       lowerCAmelCase				(  self				:	Dict							)			->  Tuple:


												"""simple docstring"""

												raise NotImplementedError()



					def       lowerCAmelCase				(  self				:	Dict							)			->  Any:


												"""simple docstring"""

												raise NotImplementedError()



					@property
					def       lowerCAmelCase				(  self				:	Dict							)			->  List[Any]:


												"""simple docstring"""

												return self._lock_file_fd is not None



					def       lowerCAmelCase				(  self				:	Any		,     __a				:	Optional[Any]=None		,     __a				:	Union[str, Any]=0.05							)			->  List[str]:


												"""simple docstring"""

												if timeout is None:
																			__lowercase      :							Union[str, Any]				=     self.timeout

												# Increment the number right at the beginning.
												# We can still undo it, if something fails.
												with self._thread_lock:
																			self._lock_counter += 1

												__lowercase      :							int				=     id(self							)
												__lowercase      :							Optional[Any]				=     self._lock_file
												__lowercase      :							List[str]				=     time.time()
												try:
																			while True:
																										with self._thread_lock:
																																	if not self.is_locked:
																																								logger().debug(F"Attempting to acquire lock {lock_id} on {lock_filename}"							)
																																								self._acquire()

																										if self.is_locked:
																																	logger().debug(F"Lock {lock_id} acquired on {lock_filename}"							)
																																	break
																										elif timeout >= 0 and time.time() - start_time > timeout:
																																	logger().debug(F"Timeout on acquiring lock {lock_id} on {lock_filename}"							)
																																	raise Timeout(self._lock_file							)
																										else:
																																	logger().debug(
																																	    F"Lock {lock_id} not acquired on {lock_filename}, waiting {poll_intervall} seconds ..."							)
																																	time.sleep(__a							)
												except:  # noqa
																			# Something did go wrong, so decrement the counter.
																			with self._thread_lock:
																										__lowercase      :							Optional[int]				=     max(0		,     self._lock_counter - 1							)

																			raise
												return _Acquire_ReturnProxy(lock=self							)



					def       lowerCAmelCase				(  self				:	Union[str, Any]		,     __a				:	Optional[Any]=False							)			->  Optional[Any]:


												"""simple docstring"""

												with self._thread_lock:
																			if self.is_locked:
																										self._lock_counter -= 1

																										if self._lock_counter == 0 or force:
																																	__lowercase      :							Optional[Any]				=     id(self							)
																																	__lowercase      :							str				=     self._lock_file

																																	logger().debug(F"Attempting to release lock {lock_id} on {lock_filename}"							)
																																	self._release()
																																	__lowercase      :							List[str]				=     0
																																	logger().debug(F"Lock {lock_id} released on {lock_filename}"							)

												return None



					def __enter__(  self				:	Any							)			->  Optional[Any]:


												"""simple docstring"""

												self.acquire()
												return self



					def __exit__(  self				:	List[str]		,     __a				:	str		,     __a				:	int		,     __a				:	List[Any]							)			->  Tuple:


												"""simple docstring"""

												self.release()
												return None



					def __del__(  self				:	Optional[int]							)			->  Optional[int]:


												"""simple docstring"""

												self.release(force=__a							)
												return None



					def       lowerCAmelCase				(  self				:	Tuple		,     __a				:	str		,     __a				:	int							)			->  str:


												"""simple docstring"""

												__lowercase      :							List[Any]				=     os.path.basename(__a							)
												if len(__a							) > max_length and max_length > 0:
																			__lowercase      :							int				=     os.path.dirname(__a							)
																			__lowercase      :							List[str]				=     str(hash(__a							)							)
																			__lowercase      :							Optional[Any]				=     filename[: max_length - len(__a							) - 8] + """...""" + hashed_filename + """.lock"""
																			return os.path.join(__a		,     __a							)
												else:
																			return path







class 		lowerCAmelCase     ( __a			):

					'''simple docstring'''

					def __init__(  self				:	Union[str, Any]		,     __a				:	List[Any]		,     __a				:	Optional[int]=-1		,     __a				:	Tuple=None							)			->  List[Any]:


												"""simple docstring"""

												from .file_utils import relative_to_absolute_path

												super().__init__(__a		,     timeout=__a		,     max_filename_length=__a							)
												__lowercase      :							Tuple				=     """\\\\?\\""" + relative_to_absolute_path(self.lock_file							)



					def       lowerCAmelCase				(  self				:	Dict							)			->  Union[str, Any]:


												"""simple docstring"""

												__lowercase      :							List[str]				=     os.O_RDWR | os.O_CREAT | os.O_TRUNC

												try:
																			__lowercase      :							Tuple				=     os.open(self._lock_file		,     __a							)
												except OSError:
																			pass
												else:
																			try:
																										msvcrt.locking(__a		,     msvcrt.LK_NBLCK		,     1							)
																			except OSError:
																										os.close(__a							)
																			else:
																										__lowercase      :							Union[str, Any]				=     fd
												return None



					def       lowerCAmelCase				(  self				:	Any							)			->  List[Any]:


												"""simple docstring"""

												__lowercase      :							Optional[Any]				=     self._lock_file_fd
												__lowercase      :							int				=     None
												msvcrt.locking(__a		,     msvcrt.LK_UNLCK		,     1							)
												os.close(__a							)

												try:
																			os.remove(self._lock_file							)
												# Probably another instance of the application
												# that acquired the file lock.
												except OSError:
																			pass
												return None







class 		lowerCAmelCase     ( __a			):

					'''simple docstring'''

					def __init__(  self				:	List[str]		,     __a				:	Optional[Any]		,     __a				:	str=-1		,     __a				:	List[str]=None							)			->  Any:


												"""simple docstring"""

												__lowercase      :							Dict				=     os.statvfs(os.path.dirname(__a							)							).f_namemax
												super().__init__(__a		,     timeout=__a		,     max_filename_length=__a							)



					def       lowerCAmelCase				(  self				:	Optional[Any]							)			->  Dict:


												"""simple docstring"""

												__lowercase      :							List[Any]				=     os.O_RDWR | os.O_CREAT | os.O_TRUNC
												__lowercase      :							List[str]				=     os.open(self._lock_file		,     __a							)

												try:
																			fcntl.flock(__a		,     fcntl.LOCK_EX | fcntl.LOCK_NB							)
												except OSError:
																			os.close(__a							)
												else:
																			__lowercase      :							str				=     fd
												return None



					def       lowerCAmelCase				(  self				:	List[Any]							)			->  Optional[int]:


												"""simple docstring"""

												__lowercase      :							Any				=     self._lock_file_fd
												__lowercase      :							List[str]				=     None
												fcntl.flock(__a		,     fcntl.LOCK_UN							)
												os.close(__a							)
												return None







class 		lowerCAmelCase     ( __a			):

					'''simple docstring'''

					def       lowerCAmelCase				(  self				:	List[str]							)			->  Union[str, Any]:


												"""simple docstring"""

												__lowercase      :							Tuple				=     os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_TRUNC
												try:
																			__lowercase      :							Union[str, Any]				=     os.open(self._lock_file		,     __a							)
												except OSError:
																			pass
												else:
																			__lowercase      :							Optional[int]				=     fd
												return None



					def       lowerCAmelCase				(  self				:	List[str]							)			->  Tuple:


												"""simple docstring"""

												os.close(self._lock_file_fd							)
												__lowercase      :							int				=     None

												try:
																			os.remove(self._lock_file							)
												# The file is already deleted and that's what we want.
												except OSError:
																			pass
												return None







lowerCamelCase : Optional[Any]						   =       None

if msvcrt:
	lowerCamelCase : List[Any]						   =       WindowsFileLock
elif fcntl:
	lowerCamelCase : List[Any]						   =       UnixFileLock
else:
	lowerCamelCase : Union[str, Any]						   =       SoftFileLock

	if warnings is not None:
		warnings.warn('''only soft file lock is available''')