




"""simple docstring"""

def     _A					( __lowercase    ):





       """simple docstring"""



       lowerCamelCase__          =						[]
       lowerCamelCase__          =						[]
       lowerCamelCase__          =						{
           """^""": 3,
           """*""": 2,
           """/""": 2,
           """%""": 2,
           """+""": 1,
           """-""": 1,
       }  # Priority of each operator
       lowerCamelCase__          =						len(lowercase__    ) if (len(lowercase__    ) > 7) else 7

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

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

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

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

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




def     _A					( __lowercase    ):





       """simple docstring"""



       lowerCamelCase__          =						list(infix[::-1]    )  # reverse the infix equation

       for i in range(len(lowercase__    )    ):
              if infix[i] == "(":
                     lowerCamelCase__          =						""")"""  # change "(" to ")"
              elif infix[i] == ")":
                     lowerCamelCase__          =						"""("""  # change ")" to "("

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


if __name__ == "__main__":
  __magic_name__				     =     input("""\nEnter an Infix Equation = """)  # Input an Infix equation
  __magic_name__				     =     ''.join(Infix.split())  # Remove spaces from the input
  print("""\n\t""", Infix, """(Infix) -> """, infix_2_prefix(Infix), """(Prefix)""")










"""simple docstring"""




import json
import os
import tempfile
import unittest
import unittest.mock as mock
from pathlib import Path

from requests.exceptions import HTTPError

from transformers.utils import (
    CONFIG_NAME,
    FLAX_WEIGHTS_NAME,
    TF2_WEIGHTS_NAME,
    TRANSFORMERS_CACHE,
    WEIGHTS_NAME,
    cached_file,
    get_file_from_repo,
    has_file,
)


__magic_name__						: Tuple    =				'hf-internal-testing/tiny-random-bert'
__magic_name__						: Dict    =				os.path.join(TRANSFORMERS_CACHE, 'models--hf-internal-testing--tiny-random-bert')
__magic_name__						: Optional[Any]    =				'9b8c223d42b2188cb49d29af482996f9d0f3e5a6'




class 			__snake_case   (unittest.TestCase  ):




							def   __a   (     self:    List[Any]   ):
										__lowerCamelCase          =      cached_file(A_     ,							A_   )
										# Should have downloaded the file in here
										self.assertTrue(os.path.isdir(A_   )   )
										# Cache should contain at least those three subfolders:
										for subfolder in ["blobs", "refs", "snapshots"]:
													self.assertTrue(os.path.isdir(os.path.join(A_     ,							A_   )   )   )
										with open(os.path.join(A_     ,							"""refs"""     ,							"""main"""   )   ) as f:
													__lowerCamelCase          =      f.read()
										self.assertEqual(A_     ,							os.path.join(A_     ,							"""snapshots"""     ,							A_     ,							A_   )   )
										self.assertTrue(os.path.isfile(A_   )   )

										# File is cached at the same place the second time.
										__lowerCamelCase          =      cached_file(A_     ,							A_   )
										self.assertEqual(A_     ,							A_   )

										# Using a specific revision to test the full commit hash.
										__lowerCamelCase          =      cached_file(A_     ,							A_     ,							revision="""9b8c223"""   )
										self.assertEqual(A_     ,							os.path.join(A_     ,							"""snapshots"""     ,							A_     ,							A_   )   )




							def   __a   (     self:    int   ):
										with self.assertRaisesRegex(A_     ,							"""is not a valid model identifier"""   ):
													__lowerCamelCase          =      cached_file("""tiny-random-bert"""     ,							A_   )

										with self.assertRaisesRegex(A_     ,							"""is not a valid git identifier"""   ):
													__lowerCamelCase          =      cached_file(A_     ,							A_     ,							revision="""aaaa"""   )

										with self.assertRaisesRegex(A_     ,							"""does not appear to have a file named"""   ):
													__lowerCamelCase          =      cached_file(A_     ,							"""conf"""   )




							def   __a   (     self:    Optional[int]   ):
										with self.assertRaisesRegex(A_     ,							"""does not appear to have a file named"""   ):
													__lowerCamelCase          =      cached_file(A_     ,							"""conf"""   )

										with open(os.path.join(A_     ,							"""refs"""     ,							"""main"""   )   ) as f:
													__lowerCamelCase          =      f.read()
										self.assertTrue(os.path.isfile(os.path.join(A_     ,							""".no_exist"""     ,							A_     ,							"""conf"""   )   )   )

										__lowerCamelCase          =      cached_file(A_     ,							"""conf"""     ,							_raise_exceptions_for_missing_entries=A_   )
										self.assertIsNone(A_   )

										__lowerCamelCase          =      cached_file(A_     ,							"""conf"""     ,							local_files_only=A_     ,							_raise_exceptions_for_missing_entries=A_   )
										self.assertIsNone(A_   )

										__lowerCamelCase          =      mock.Mock()
										__lowerCamelCase          =      5_00
										__lowerCamelCase          =      {}
										__lowerCamelCase          =      HTTPError
										__lowerCamelCase          =      {}

										# Under the mock environment we get a 500 error when trying to reach the tokenizer.
										with mock.patch("""requests.Session.request"""     ,							return_value=A_   ) as mock_head:
													__lowerCamelCase          =      cached_file(A_     ,							"""conf"""     ,							_raise_exceptions_for_connection_errors=A_   )
													self.assertIsNone(A_   )
													# This check we did call the fake head request
													mock_head.assert_called()




							def   __a   (     self:    str   ):
										self.assertTrue(has_file("""hf-internal-testing/tiny-bert-pt-only"""     ,							A_   )   )
										self.assertFalse(has_file("""hf-internal-testing/tiny-bert-pt-only"""     ,							A_   )   )
										self.assertFalse(has_file("""hf-internal-testing/tiny-bert-pt-only"""     ,							A_   )   )




							def   __a   (     self:    str   ):
										# `get_file_from_repo` returns None if the file does not exist
										self.assertIsNone(get_file_from_repo("""bert-base-cased"""     ,							"""ahah.txt"""   )   )

										# The function raises if the repository does not exist.
										with self.assertRaisesRegex(A_     ,							"""is not a valid model identifier"""   ):
													get_file_from_repo("""bert-base-case"""     ,							A_   )

										# The function raises if the revision does not exist.
										with self.assertRaisesRegex(A_     ,							"""is not a valid git identifier"""   ):
													get_file_from_repo("""bert-base-cased"""     ,							A_     ,							revision="""ahaha"""   )

										__lowerCamelCase          =      get_file_from_repo("""bert-base-cased"""     ,							A_   )
										# The name is the cached name which is not very easy to test, so instead we load the content.
										__lowerCamelCase          =      json.loads(open(A_     ,							"""r"""   ).read()   )
										self.assertEqual(config["""hidden_size"""]     ,							7_68   )




							def   __a   (     self:    Union[str, Any]   ):
										with tempfile.TemporaryDirectory() as tmp_dir:
													__lowerCamelCase          =      Path(A_   ) / """a.txt"""
													filename.touch()
													self.assertEqual(get_file_from_repo(A_     ,							"""a.txt"""   )     ,							str(A_   )   )

													self.assertIsNone(get_file_from_repo(A_     ,							"""b.txt"""   )   )




