code: from .balanced_parentheses import balanced_parentheses
  from .stack import Stack
  def 				__lowercase	(						lowerCamelCase__					)				->int:
  
    '''simple docstring'''
  
  
  
  
    return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(lowerCamelCase__ ,				-1					)
  def 				__lowercase	(						lowerCamelCase__					)				->str:
  
    '''simple docstring'''
  
  
  
  
    if not balanced_parentheses(lowerCamelCase__					):
      raise ValueError("Mismatched parentheses"					)
    a__     		=     Stack()
    a__     		=     []
    for char in expression_str:
      if char.isalpha() or char.isdigit():
        postfix.append(lowerCamelCase__					)
      elif char == "(":
        stack.push(lowerCamelCase__					)
      elif char == ")":
        while not stack.is_empty() and stack.peek() != "(":
          postfix.append(stack.pop()					)
        stack.pop()
      else:
        while not stack.is_empty() and precedence(lowerCamelCase__					) <= precedence(stack.peek()					):
          postfix.append(stack.pop()					)
        stack.push(lowerCamelCase__					)
    while not stack.is_empty():
      postfix.append(stack.pop()					)
    return " ".join(lowerCamelCase__					)
  
  
  if __name__ == "__main__":
       from doctest import testmod
  
       testmod()
       _SCREAMING_SNAKE_CASE   						=    """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))
  
  
style_context: _SCREAMING_SNAKE_CASE   						=    [0.485, 0.456, 0.406]
  _SCREAMING_SNAKE_CASE   						=    [0.229, 0.224, 0.225]
  _SCREAMING_SNAKE_CASE   						=    [0.5, 0.5, 0.5]
  _SCREAMING_SNAKE_CASE   						=    [0.5, 0.5, 0.5]
  _SCREAMING_SNAKE_CASE   						=    [0.48145466, 0.4578275, 0.40821073]
  _SCREAMING_SNAKE_CASE   						=    [0.26862954, 0.26130258, 0.27577711]
  
  