



'''simple docstring'''



from .balanced_parentheses import balanced_parentheses
from .stack import Stack


def 							__UpperCAmelCase				(				UpperCamelCase__				:str			)		->						int:
				return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(UpperCamelCase__   ,				-1			)


def 							__UpperCAmelCase				(				UpperCamelCase__				:str			)		->						str:
				if not balanced_parentheses(UpperCamelCase__			):
								raise ValueError('''Mismatched parentheses'''			)
				snake_case__      :   Stack[str]      =    Stack()
				snake_case__      :   int      =    []
				for char in expression_str:
								if char.isalpha() or char.isdigit():
												postfix.append(UpperCamelCase__			)
								elif char == "(":
												stack.push(UpperCamelCase__			)
								elif char == ")":
												while not stack.is_empty() and stack.peek() != "(":
																postfix.append(stack.pop()			)
												stack.pop()
								else:
												while not stack.is_empty() and precedence(UpperCamelCase__			) <= precedence(stack.peek()			):
																postfix.append(stack.pop()			)
												stack.push(UpperCamelCase__			)
				while not stack.is_empty():
								postfix.append(stack.pop()			)
				return " ".join(UpperCamelCase__			)


if __name__ == "__main__":
				from doctest import testmod

				testmod()
				_lowercase       :						str						="a+b*(c^d-e)^(f+g*h)-i"

				print("Infix to Postfix Notation demonstration:\n")
				print("Infix notation: " + expression)
				print("Postfix notation: " + infix_to_postfix(expression))









'''simple docstring'''



import pytest

from datasets.utils.version import Version


@pytest.mark.parametrize(
    '''other, expected_equality'''   ,				[
        (Version('''1.0.0'''			), True),
        ('''1.0.0''', True),
        (Version('''2.0.0'''			), False),
        ('''2.0.0''', False),
        ('''1''', False),
        ('''a''', False),
        (1, False),
        (None, False),
    ]   ,				)
def 							__UpperCAmelCase				(				UpperCamelCase__				:Optional[int]   ,				UpperCamelCase__				:int			)		->						List[str]:
				snake_case__      :   Optional[int]      =    Version('''1.0.0'''			)
				assert (version == other) is expected_equality
				assert (version != other) is not expected_equality
				assert (hash(UpperCamelCase__			) == hash(UpperCamelCase__			)) is expected_equality




