Men siz matnli matnni hisoblash uchun kalkulyator dasturini yangilashni xohlayotganingizni tushunaman. Kalkulyatorning o'zgartirilgan versiyasi quyidagicha: `` python import re class Kalkulyator: __ definit__: self.operations = { '+': self.add, '-': self.subtract, '*': self.multiply, '/': self.divide, } def addself, a, b): return a + b def subtract (((self, a, b): return a - b def def multiply ((self, a, b): return a * b def def def def def divide, a return b): a / b def def evaluate expression = expression.expression.expression = expression.replace '(' '), '{'} = {'} = {'} = {'} = {'}
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