__name__ =='__main__'时如何使用：

Question

每当我导入此脚本时，它都会在不被调用的情况下运行，并且为了避免需要使用 if __name__ =='__main __'：，我很困惑如何在此代码中使用它 如果有人可以帮助我，那就太好了

import pyperclip

passwords = {'Facebook': 'xxxx', 'Instagram': 'xxxxxx', 'Youtube': 'xxxxxxx'}

tries = 0
tries_remaining = 3
pass_len = len(passwords)


def ask():
    mast_pass = 'HailHydra'
    ask_mast_pass = input('Please enter the master password: ')
    if ask_mast_pass == mast_pass:
        print(f"{pass_len} found.")
        for x in passwords.keys():
            print(x)

        which_pass = input('Type the name of the password title you are 
looking for: ')
        paswd = passwords[which_pass]
        pyperclip.copy(paswd)
        print('Password Copied to clipboard.')

        exit()
    else:
        print('Incorrect Password, Please Try again')


while tries < tries_remaining:
    tries += 1
    ask()
    print(f"{3 - tries} tries remaining")


print('***Do not try to breach the system***')

Answer 1

将while循环置于__name__检查下。这就是导入该脚本时将运行的内容。

import pyperclip

passwords = {'Facebook': 'xxxx', 'Instagram': 'xxxxxx', 'Youtube': 'xxxxxxx'}

tries = 0
tries_remaining = 3
pass_len = len(passwords)


def ask():
    mast_pass = 'HailHydra'
    ask_mast_pass = input('Please enter the master password: ')
    if ask_mast_pass == mast_pass:
        print(f"{pass_len} found.")
        for x in passwords.keys():
            print(x)

        which_pass = input('Type the name of the password title you are 
looking for: ')
        paswd = passwords[which_pass]
        pyperclip.copy(paswd)
        print('Password Copied to clipboard.')

        exit()
    else:
        print('Incorrect Password, Please Try again')

if __name__ == '__main__':
    while tries < tries_remaining:
        tries += 1
        ask()
        print(f"{3 - tries} tries remaining")

    print('***Do not try to breach the system***')