RRRR FFFF RRRR | Python Fiddle

def stringtonumber(guess):

# Converts input by user from a string to an integer

answer = 0
    
    for i in guess[1]:
        if i =="R":
            answer += 10
        elif i == 'F':
            answer += 1

guess[1] = answer

# replaces the string with said integer in index 1 of guess

return (guess)

#------------------------------------------------------

def compare (guess1,guess2):

# compares each element in a string within a guess to each element in a string within another guess and returns an answercode
    
    F=0
    R=0
    for i in range(0,4):
        for j in range(0,4):
            if guess2[0][i]==guess1[0][j]:
                if i==j:
                    R=R+10
                else:
                    F=F+1
    return (F+R)

#--------------------------------------------------------

def printResult (numberOfGuesses):
    if numberOfGuesses == 1:
         print ( 'One guess was all it took, I win!')
    elif numberOfGuesses == 2:
        print ( 'Two guesses was all it took, I am good at this!')
    elif numberOfGuesses == 3:
        print ( 'Three guesses was all it took, I am pretty good at this!')
    else:
        print ( numberOfGuesses + ' guesses was all it took, I can do better!')
    return ":)"

#--------------------------------------------------------

# Creates a list of every possible guess from 1023 to 10k and removes all numbers where one element occurs more than once
number_list = []

for i in range(1023,10000):
   number_list.append(str(i))

# Creates a temporary list that contains the index of every number that's supposed to be removed from number_list
temp_list=[]
for i in range(0,len(number_list)):
    for ii in range(0,4):
        forekomst=0
        for iii in range(0,4):
            if number_list[i][ii] == number_list[i][iii]:
                forekomst=forekomst+1
        if forekomst > 1:
            temp_list.append(i)
            break

# reverses the list of indices and removes the numbers in a backwards order (to avoid any problems with changing of index)
temp_list.reverse()

for i in range(0,len(temp_list)):
    tabort=temp_list[i]
    number_list.pop(tabort)

#----------------------------------------------------------------------------------------------

#sparar alla gamla gissningar i en lista 
oldguesses = []
stopPlaying = False

guess1 = [number_list[0], input('I will guess ' + number_list[0] + ' and your answer is: ')]

#första gissningen är alltid densamma (alltså första värdet i number_list som är 1023)

stringtonumber(guess1)

oldguesses.append(guess1)

#ska loopa igenom nummerlistan och leta efter rimliga gissningar

if guess1[1] == 40:
    print ('One guess was all it took, I win!')
else:
    while not stopPlaying:
        for i in range(0,len(number_list)):
            for j in range(0,len(oldguesses)):
                if number_list[i] > oldguesses[j][0] and not stopPlaying:
                    newguess = [number_list[i]]
                    if compare(oldguesses[j], newguess)== oldguesses[j][1]:
                        newguess.append(input('I will guess ' + number_list[i] + ' and your answer is: '))
                        stringtonumber(newguess)
                        oldguesses.append(newguess)
                        print(newguess)
                        if newguess[1]== 40:
                            printResult(len(oldguesses))
                            stopPlaying = True
                            break
                    else:
                        break
                else:
                    break

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