random math quiz

himport sys
from random import randint as rd


class mathquiz:
    operations = ['+','-','x','/']

    #op: operation, se: start-end
    def __init__(self,op,se):
        self.op,self.se = op,se

    def create(self):
        res = (
                rd(int(self.se[0]),int(self.se[1])),
                rd(int(self.se[0]),int(self.se[1]))
                )
        return [res[0],self.op,res[1]]

    def losing(self,poin):
        if poin <= 1:
           return sys.exit('\n[#] Yeahhh, You lose, Trash!')

    def question(self):
        if self.op not in self.operations:
            sys.exit('operations failure')

        poin = 0
        while True:
            a,b,c = self.create()
            b="*" if b and "x" else b;q = f"{a} {b} {c}"
            answer = input('[?] '+q+' = ')
            sys.exit('\n[#] Bye Bye!') if answer == 'q' else answer

            try:
                if answer == '':
                    print('[!] Question Skipped, Poin -5')
                    poin -= 5
                    self.losing(poin)
                    continue
                elif eval(q) == int(answer):
                    poin += 10
                    print (f'[-] Benar! Poin kamu: {poin}')
                else:
                    print (f'[!] Salah, Jawaban: {eval(q)}. Poin -3')
                    poin -= 3
                    self.losing(poin)

            except ValueError:
                print('[!] Your input invalid')
                continue

if __name__=="__main__":
    run = mathquiz(sys.argv[1],sys.argv[2].split('-'))
    run.question()