سلام من تمرین eval رو انجام دادم

طرز کار تابع myEval به این شکل است که:

input string
delete the spaces 
put members in a list and put "**" instead of "*" , "*"
make the numbers
while prant in list:
    find innest prant
    if just number in prant
        delete prants
    else
        solve the phrase with priroties
        delete prants
solve the phrase with priroties
go to input

و کد برنامه به این شکل است:

(خروجی و ورودی توابع برای مثال با کامنت مشخص شده است)

def inputting():
  inputtedString = input("Please Enter Your Math Phrase Here: ")
  if inputtedString == "":
    inputting()
  return inputtedString
def makeList(inputtedString): # like "( 2 ** 10 ) / ( 2 * 16 )"
  inputtedString = inputtedString.replace(" " , "")
  inputtedList = []
  for chr in inputtedString:
    inputtedList.append(chr)
  return inputtedList # will be ['(', '2', '*', '*', '1', '0', ')', '/', '(', '2', '*', '1', '6', ')']
def makeSign(inputtedList): # like ['(', '2', '*', '*', '1', '0', ')', '/', '(', '2', '*', '1', '6', ')'] notice the "*" , "*"
  newInputtedList = []
  lastChr = ""
  for chr in inputtedList:
    if chr == "*" and lastChr != "*":
      newInputtedList.append("*")
    elif chr == "*" and lastChr == "*": 
      newInputtedList.pop()
      newInputtedList.append("**")
    elif chr == "+" or chr == "-" or chr == "/" or chr == "(" or chr == ")" or chr.isdigit():
      newInputtedList.append(chr)
    lastChr = chr
  return newInputtedList # will be ['(', '2', '**', '1', '0', ')', '/', '(', '2', '*', '1', '6', ')'] notice the  "**"
def makeNumbers(newInputtedList): # like ['(', '2', '**', '1', '0', ')', '/', '(', '2', '*', '1', '6', ')'] notice the "1" , "0" and "1" , "6"
  classifiedList = []
  chrBefore = ""
  myNum = 0
  lenList = len(newInputtedList)
  for chr in newInputtedList:
    if chr.isdigit():
      myNum = (myNum * 10) + int(chr)
    if chr.isdigit() == False and chrBefore.isdigit():
      classifiedList.append(myNum)
      myNum = 0
    if chr == "+" or chr == "-" or chr == "/" or chr == "(" or chr == ")" or chr == "**" or chr == "*":
      classifiedList.append(chr)
    if lenList == 1 and chr.isdigit():
      classifiedList.append(myNum)
      myNum = 0
    chrBefore = chr
    lenList -= 1
  return classifiedList # will be ['(', 2, '**', 10, ')', '/', '(', 2, '*', 16, ')'] notice the 10 and 16
def solveInnest(classifiedList): # like ['(', 2, '**', 10, ')', '/', '(', 2, '*', 16, ')']
  chrCount = 0
  chr2Count = 0
  lPrant = 0
  rPrant = 0
  innestPrant = []
  classifiedList_copy = classifiedList.copy()
  classifiedList_copy.reverse()
  for chr in classifiedList:
    if chr == ")":
      rPrant = chrCount
      for chr2 in classifiedList_copy[(len(classifiedList) - rPrant - 1) : ]:
        if chr2 == "(":
          lPrant = rPrant - chr2Count
          innestPrant = classifiedList[lPrant + 1 : rPrant]
          solvedPhrase = solvePhrase(innestPrant)
          classifiedList[lPrant : rPrant + 1] = solvedPhrase #replacing
        chr2Count += 1
    if innestPrant != []:
      break  
    chrCount += 1
  return classifiedList # will be [ 1024, '/', '(', 2, '*', 16, ')'] this will again go to the solveInnest() in while loop
def solvePhrase(phrase): # like [ 2, "**", 10]
  while "**" in phrase or "*" in phrase or "/" in phrase or "+" in phrase or "-" in phrase:
    if "**" in phrase:
      solveTavans(phrase)  
    if "*" in phrase or "/" in phrase:
      solveZarbs(phrase) 
    if "+" in phrase or "-" in phrase: 
      solveJams(phrase)  
  return phrase # will be [1024]
def solvePrants(classifiedList):
  if "(" in classifiedList:
    classifiedList = solveInnest(classifiedList)
    solvePrants(classifiedList)
    solvedPhrase = solvePhrase(classifiedList)
  else:
    solvedPhrase = solvePhrase(classifiedList)
  print(f"The Result is : {solvedPhrase}")
  
  inputtedString = inputting()
  myEval(inputtedString)
def solveTavans(phrase):
  chrCount = 0
  for chr in phrase:
    if chr == "**":
      optResult = phrase[chrCount - 1] ** phrase[chrCount + 1]
      phrase[ chrCount - 1 : chrCount + 2] = [optResult] #replacing
    chrCount += 1
  solvePhrase(phrase)
def solveZarbs(phrase):
  chrCount = 0
  for chr in phrase:
    if chr == "*":
      optResult = phrase[chrCount - 1] * phrase[chrCount + 1]
      phrase[ chrCount - 1 : chrCount + 2] = [optResult]
    elif chr == "/":
      optResult = phrase[chrCount - 1] / phrase[chrCount + 1]
      phrase[ chrCount - 1 : chrCount + 2] = [optResult]
    chrCount += 1
  solvePhrase(phrase)
def solveJams(phrase):
  chrCount = 0
  for chr in phrase:
    if chr == "+":
      optResult = phrase[chrCount - 1] + phrase[chrCount + 1]
      phrase[ chrCount - 1 : chrCount + 2] = [optResult]
    elif chr == "-":
      optResult = phrase[chrCount - 1] - phrase[chrCount + 1]
      phrase[ chrCount - 1 : chrCount + 2] = [optResult]
    chrCount += 1
  solvePhrase(phrase)
def myEval(inputtedString):
  inputtedList = makeList(inputtedString)
  newInputtedList = makeSign(inputtedList)
  classifiedList = makeNumbers(newInputtedList)
  solvePrants(classifiedList)
inputtedString = inputting()
myEval(inputtedString)