为什么我在查看文件时出现值错误？

Question

我正在尝试在 Python 中创建密码管理器，但出现值错误。下面是我为密码管理器编写的代码。它使用密码输入。



def view():
    with open("passwords.txt", "r") as f:
        for line in f.readline():
            data = (line.rstrip())
            user, passw = data.split("|")
            print("User: ", user, "password", passw)

def add():
    name = input("Account Name: ")
    pwd = input("Password:" )
    with open("passwords.txt", "a") as f:
        f.write(name + "|" + pwd + "\n")

while True:
    mode = input ("Would you like to add a new password or view existing ones (view, add). Press q to quit").lower()
    if mode == "q":
        quit()
    if mode == "view":
        view()
    elif mode == "add":
        add()
    else:
        print("You have entered an invalid mode")
        continue

这是我在运行和输入输入时遇到的错误：

  File "C:\Users\user\Documents\Python\exercises\passwordmanag.py", line 22, in <module>
    view()
  File "C:\Users\user\Documents\Python\exercises\passwordmanag.py", line 8, in view
    user, passw = data.split("|")
ValueError: not enough values to unpack (expected 2, got 1)

有人可以帮我解决这个错误吗？

谢谢。

Answer 1

def view():
    with open("passwords.txt", "r") as f:
        for line in f:
            data = (line.rstrip())
            user, passw = data.split("|")
            print("User: ", user, "password", passw)

def add():
    name = input("Account Name: ")
    pwd = input("Password:" )
    with open("passwords.txt", "a") as f:
        f.write(name + "|" + pwd + "\n")

while True:
    mode = input ("Would you like to add a new password or view existing ones (view, add). Press q to quit").lower()
    if mode == "q":
        quit()
    if mode == "view":
        view()
    elif mode == "add":
        add()
    else:
        print("You have entered an invalid mode")
        continue

上下文：您试图读取行中的每个字符而不是读取每一行，因此在尝试拆分时给您一个错误。

为什么我在查看文件时出现值错误？

Why am I getting value error in viewing a file?

python

file

valueerror