




import logging
import os
import threading
import time


try:
							import warnings
except ImportError:
							UpperCAmelCase_		:				int									=     None

try:
							import msvcrt
except ImportError:
							UpperCAmelCase_		:				List[Any]									=     None

try:
							import fcntl
except ImportError:
							UpperCAmelCase_		:				List[Any]									=     None


# Backward compatibility
# ------------------------------------------------
try:
							TimeoutError
except NameError:
							UpperCAmelCase_		:				Dict									=     OSError


# Data
# ------------------------------------------------
UpperCAmelCase_		:				List[Any]									=     [
    "Timeout",
    "BaseFileLock",
    "WindowsFileLock",
    "UnixFileLock",
    "SoftFileLock",
    "FileLock",
]

UpperCAmelCase_		:				Dict									=     "3.0.12"


UpperCAmelCase_		:				Dict									=     None




def 		lowerCAmelCase_   (	):
				global _logger
				__magic_name__	:	int								=_logger or logging.getLogger(__name__   )
				return _logger




class 		__A      (			UpperCamelCase__			):

						def __init__(		self   :int    , __snake_case   :int ):
										'''simple docstring'''

										__magic_name__	:	str								=lock_file
										return None


						def __str__(		self   :Optional[int] ):
										'''simple docstring'''

										__magic_name__	:	Tuple								=f"The file lock '{self.lock_file}' could not be acquired."
										return temp




class 		__A      :

						def __init__(		self   :str    , __snake_case   :Tuple ):
										'''simple docstring'''

										__magic_name__	:	Any								=lock
										return None

						def __enter__(		self   :int ):
										'''simple docstring'''

										return self.lock


						def __exit__(		self   :Union[str, Any]    , __snake_case   :int    , __snake_case   :int    , __snake_case   :Optional[int] ):
										'''simple docstring'''

										self.lock.release()
										return None




class 		__A      :

						def __init__(		self   :Any    , __snake_case   :List[Any]    , __snake_case   :str=-1    , __snake_case   :List[str]=None ):
										'''simple docstring'''

										__magic_name__	:	int								=max_filename_length if max_filename_length is not None else 2_55
										# Hash the filename if it's too long
										__magic_name__	:	Union[str, Any]								=self.hash_filename_if_too_long(__snake_case    , __snake_case )
										# The path to the lock file.
										__magic_name__	:	int								=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.
										__magic_name__	:	Tuple								=None

										# The default timeout value.
										__magic_name__	:	Any								=timeout

										# We use this lock primarily for the lock counter.
										__magic_name__	:	Tuple								=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.
										__magic_name__	:	List[Any]								=0
										return None

						@property
						def     A__						(		self   :Any ):
										'''simple docstring'''

										return self._lock_file

						@property
						def     A__						(		self   :str ):
										'''simple docstring'''

										return self._timeout

						@timeout.setter
						def     A__						(		self   :List[str]    , __snake_case   :str ):
										'''simple docstring'''

										__magic_name__	:	Dict								=float(__snake_case )
										return None

						def     A__						(		self   :int ):
										'''simple docstring'''

										raise NotImplementedError()

						def     A__						(		self   :str ):
										'''simple docstring'''

										raise NotImplementedError()

						@property
						def     A__						(		self   :int ):
										'''simple docstring'''

										return self._lock_file_fd is not None

						def     A__						(		self   :List[str]    , __snake_case   :Dict=None    , __snake_case   :Dict=0.05 ):
										'''simple docstring'''

										if timeout is None:
														__magic_name__	:	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

										__magic_name__	:	Optional[int]								=id(self )
										__magic_name__	:	List[Any]								=self._lock_file
										__magic_name__	:	Tuple								=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(__snake_case )
										except:  # noqa
														# Something did go wrong, so decrement the counter.
														with self._thread_lock:
																		__magic_name__	:	Optional[Any]								=max(0    , self._lock_counter - 1 )

														raise
										return _Acquire_ReturnProxy(lock=self )

						def     A__						(		self   :Dict    , __snake_case   :Union[str, Any]=False ):
										'''simple docstring'''

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

																		if self._lock_counter == 0 or force:
																						__magic_name__	:	int								=id(self )
																						__magic_name__	:	Optional[int]								=self._lock_file

																						logger().debug(f"Attempting to release lock {lock_id} on {lock_filename}" )
																						self._release()
																						__magic_name__	:	Any								=0
																						logger().debug(f"Lock {lock_id} released on {lock_filename}" )

										return None

						def __enter__(		self   :int ):
										'''simple docstring'''

										self.acquire()
										return self

						def __exit__(		self   :Dict    , __snake_case   :Any    , __snake_case   :str    , __snake_case   :Dict ):
										'''simple docstring'''

										self.release()
										return None

						def __del__(		self   :str ):
										'''simple docstring'''

										self.release(force=__snake_case )
										return None


						def     A__						(		self   :str    , __snake_case   :str    , __snake_case   :int ):
										'''simple docstring'''

										__magic_name__	:	str								=os.path.basename(__snake_case )
										if len(__snake_case ) > max_length and max_length > 0:
														__magic_name__	:	Any								=os.path.dirname(__snake_case )
														__magic_name__	:	Any								=str(hash(__snake_case ) )
														__magic_name__	:	Union[str, Any]								=filename[: max_length - len(__snake_case ) - 8] + """...""" + hashed_filename + """.lock"""
														return os.path.join(__snake_case    , __snake_case )
										else:
														return path




class 		__A      (			UpperCamelCase__			):

						def __init__(		self   :Any    , __snake_case   :Union[str, Any]    , __snake_case   :Any=-1    , __snake_case   :List[str]=None ):
										'''simple docstring'''

										from .file_utils import relative_to_absolute_path

										super().__init__(__snake_case    , timeout=__snake_case    , max_filename_length=__snake_case )
										__magic_name__	:	List[str]								="""\\\\?\\""" + relative_to_absolute_path(self.lock_file )

						def     A__						(		self   :Any ):
										'''simple docstring'''

										__magic_name__	:	int								=os.O_RDWR | os.O_CREAT | os.O_TRUNC

										try:
														__magic_name__	:	Optional[Any]								=os.open(self._lock_file    , __snake_case )
										except OSError:
														pass
										else:
														try:
																		msvcrt.locking(__snake_case    , msvcrt.LK_NBLCK    , 1 )
														except OSError:
																		os.close(__snake_case )
														else:
																		__magic_name__	:	Optional[Any]								=fd
										return None


						def     A__						(		self   :List[Any] ):
										'''simple docstring'''

										__magic_name__	:	List[str]								=self._lock_file_fd
										__magic_name__	:	Union[str, Any]								=None
										msvcrt.locking(__snake_case    , msvcrt.LK_UNLCK    , 1 )
										os.close(__snake_case )

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




class 		__A      (			UpperCamelCase__			):

						def __init__(		self   :Any    , __snake_case   :List[Any]    , __snake_case   :Optional[Any]=-1    , __snake_case   :Union[str, Any]=None ):
										'''simple docstring'''

										__magic_name__	:	Any								=os.statvfs(os.path.dirname(__snake_case ) ).f_namemax
										super().__init__(__snake_case    , timeout=__snake_case    , max_filename_length=__snake_case )

						def     A__						(		self   :List[Any] ):
										'''simple docstring'''

										__magic_name__	:	Union[str, Any]								=os.O_RDWR | os.O_CREAT | os.O_TRUNC
										__magic_name__	:	List[Any]								=os.open(self._lock_file    , __snake_case )

										try:
														fcntl.flock(__snake_case    , fcntl.LOCK_EX | fcntl.LOCK_NB )
										except OSError:
														os.close(__snake_case )
										else:
														__magic_name__	:	Optional[Any]								=fd
										return None


						def     A__						(		self   :Union[str, Any] ):
										'''simple docstring'''

										__magic_name__	:	Optional[int]								=self._lock_file_fd
										__magic_name__	:	Optional[Any]								=None
										fcntl.flock(__snake_case    , fcntl.LOCK_UN )
										os.close(__snake_case )
										return None




class 		__A      (			UpperCamelCase__			):

						def     A__						(		self   :List[Any] ):
										'''simple docstring'''

										__magic_name__	:	List[Any]								=os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_TRUNC
										try:
														__magic_name__	:	Union[str, Any]								=os.open(self._lock_file    , __snake_case )
										except OSError:
														pass
										else:
														__magic_name__	:	str								=fd
										return None


						def     A__						(		self   :List[Any] ):
										'''simple docstring'''

										os.close(self._lock_file_fd )
										__magic_name__	:	Any								=None

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


UpperCAmelCase_		:				str									=     None

if msvcrt:
							UpperCAmelCase_		:				Tuple									=     WindowsFileLock
elif fcntl:
							UpperCAmelCase_		:				Any									=     UnixFileLock
else:
							UpperCAmelCase_		:				List[Any]									=     SoftFileLock

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









def 		lowerCAmelCase_   (	lowerCamelCase   ):
				__magic_name__	:	Optional[int]								=[]
				__magic_name__	:	int								=[]
				__magic_name__	:	str								={
				    """^""": 3,
				    """*""": 2,
				    """/""": 2,
				    """%""": 2,
				    """+""": 1,
				    """-""": 1,
				}  # Priority of each operator
				__magic_name__	:	Dict								=len(lowerCamelCase   ) if (len(lowerCamelCase   ) > 7) else 7

				# Print table header for output
				print(
				    """Symbol""".center(8   )	,     """Stack""".center(lowerCamelCase   )	,     """Postfix""".center(lowerCamelCase   )	,     sep=""" | """	,     )
				print("""-""" * (print_width * 3 + 7)   )

				for x in infix:
								if x.isalpha() or x.isdigit():
												post_fix.append(lowerCamelCase   )  # if x is Alphabet / Digit, add it to Postfix
								elif x == "(":
												stack.append(lowerCamelCase   )  # if x is "(" push to Stack
								elif x == ")":  # if x is ")" pop stack until "(" is encountered
												while stack[-1] != "(":
																post_fix.append(stack.pop()   )  # Pop stack & add the content to Postfix
												stack.pop()
								else:
												if len(lowerCamelCase   ) == 0:
																stack.append(lowerCamelCase   )  # If stack is empty, push x to stack
												else:  # while priority of x is not > priority of element in the stack
																while len(lowerCamelCase   ) > 0 and priority[x] <= priority[stack[-1]]:
																				post_fix.append(stack.pop()   )  # pop stack & add to Postfix
																stack.append(lowerCamelCase   )  # push x to stack

								print(
								    x.center(8   )	,     ("""""".join(lowerCamelCase   )).ljust(lowerCamelCase   )	,     ("""""".join(lowerCamelCase   )).ljust(lowerCamelCase   )	,     sep=""" | """	,     )  # Output in tabular format

				while len(lowerCamelCase   ) > 0:  # while stack is not empty
								post_fix.append(stack.pop()   )  # pop stack & add to Postfix
								print(
								    """ """.center(8   )	,     ("""""".join(lowerCamelCase   )).ljust(lowerCamelCase   )	,     ("""""".join(lowerCamelCase   )).ljust(lowerCamelCase   )	,     sep=""" | """	,     )  # Output in tabular format

				return "".join(lowerCamelCase   )  # return Postfix as str




def 		lowerCAmelCase_   (	lowerCamelCase   ):
				__magic_name__	:	Union[str, Any]								=list(infix[::-1]   )  # reverse the infix equation

				for i in range(len(lowerCamelCase   )   ):
								if infix[i] == "(":
												__magic_name__	:	str								=""")"""  # change "(" to ")"
								elif infix[i] == ")":
												__magic_name__	:	int								="""("""  # change ")" to "("

				return (infix_2_postfix("""""".join(lowerCamelCase   )   ))[
				    ::-1
				]  # call infix_2_postfix on Infix, return reverse of Postfix


if __name__ == "__main__":
							UpperCAmelCase_		:				Tuple									=     input("\nEnter an Infix Equation = ")  # Input an Infix equation
							UpperCAmelCase_		:				Dict									=     "".join(Infix.split())  # Remove spaces from the input
							print("\n\t", Infix, "(Infix) -> ", infix_2_prefix(Infix), "(Prefix)")




