Python--github Brush problem

Question No. 0001: As an independent developer of the Apple Store App, do you want to make a limited-time promotion, generate an activation code (or coupon) for your app, and use Python to generate 200 activation codes (or coupons)?

import randomdef gen_activate_code(length=8):    activate_code_list = []    for i in range(10):        activate_code_list.append(str(i))        for i in range(65,91):        activate_code_list.append(chr(i))            for i in range(97,123):        activate_code_list.append(chr(i))        activate_code = ''.join(random.sample(activate_code_list,length))        return activate_codeprint(gen_activate_code())

Python--github Brush problem