Python PySimpleGUI-登录身份验证器

我无法让登录验证器正常工作。除了login（）函数外，所有功能都正常工作。另外两个函数progress_bar（）和create_account（）运行时没有问题。我一直收到一条keyrerror:'-username-'消息。我什么都试过了，甚至不使用函数，但仍然。我找不到问题所在。有人吗@意大利麦加酒店

import PySimpleGUI as sg

#PROGRESS BAR
def progress_bar():
    sg.theme('LightBlue2')
    layout = [[sg.Text('Creating your account...')],
            [sg.ProgressBar(1000, orientation='h', size=(20, 20), key='progbar')],
            [sg.Cancel()]]

    window = sg.Window('Working...', layout)
    for i in range(1000):
        event, values = window.read(timeout=1)
        if event == 'Cancel' or event == sg.WIN_CLOSED:
            break
        window['progbar'].update_bar(i + 1)
    window.close()


def create_account():
    sg.theme('LightBlue2')
    layout = [[sg.Text("Sign Up", size =(15, 1), font=40, justification='c')],
             [sg.Text("E-mail", size =(15, 1),font=16), sg.InputText(key='-email-', font=16)],
             [sg.Text("Re-enter E-mail", size =(15, 1), font=16), sg.InputText(key='-remail-', font=16)],
             [sg.Text("Create Username", size =(15, 1), font=16), sg.InputText(key='-username-', font=16)],
             [sg.Text("Create Password", size =(15, 1), font=16), sg.InputText(key='-password-', font=16, password_char='*')],
             [sg.Button("Submit"), sg.Button("Cancel")]]

    window = sg.Window("Sign Up", layout)

    
    while True:
        event,values = window.read()
        if event == 'Cancel' or event == sg.WIN_CLOSED:
            break
        else:
            if event == "Submit":
                if values['-email-'] != values['-remail-']:
                    sg.popup_error("Error", font=16)
                    continue
                elif values['-email-'] == values['-remail-']:
                    progress_bar()
                    break
    window.close()
create_account()


def login():
    sg.theme("LightBlue2")
    layout = [[sg.Text("Log In", size =(15, 1), font=40)],
            [sg.Text("Username", size =(15, 1), font=16),sg.InputText(key='-usrnm-', font=16)],
            [sg.Text("Password", size =(15, 1), font=16),sg.InputText(key='-pwd-', password_char='*', font=16)],
            [sg.Button('Ok'),sg.Button('Cancel')]]

    window = sg.Window("Log In", layout)

    while True:
        event,values = window.read()
        if event == "Cancel" or event == sg.WIN_CLOSED:
            break
        else:
            if event == "Ok":
                if values['-usrnm-'] == values['-username-'] and values['-pwd-'] == values['-password-']:
                    sg.popup("Welcome!")
                    break
                elif values['-usrnm-'] != values['-username-'] and values['-pwd-'] != values['-password-']:
                    sg.popup("Invalid login. Try again")

    window.close()
login()

---

关闭windows gui后，不能使用

值['-password-']

。您必须在变量中存储用户名和密码。通过使用变量，您可以在登录函数中验证用户名和密码

试试这个：

import PySimpleGUI as sg


username = ''
password = ''
#PROGRESS BAR
def progress_bar():
    sg.theme('LightBlue2')
    layout = [[sg.Text('Creating your account...')],
            [sg.ProgressBar(1000, orientation='h', size=(20, 20), key='progbar')],
            [sg.Cancel()]]

    window = sg.Window('Working...', layout)
    for i in range(1000):
        event, values = window.read(timeout=1)
        if event == 'Cancel' or event == sg.WIN_CLOSED:
            break
        window['progbar'].update_bar(i + 1)
    window.close()


def create_account():
    global username, password
    sg.theme('LightBlue2')
    layout = [[sg.Text("Sign Up", size =(15, 1), font=40, justification='c')],
             [sg.Text("E-mail", size =(15, 1),font=16), sg.InputText(key='-email-', font=16)],
             [sg.Text("Re-enter E-mail", size =(15, 1), font=16), sg.InputText(key='-remail-', font=16)],
             [sg.Text("Create Username", size =(15, 1), font=16), sg.InputText(key='-username-', font=16)],
             [sg.Text("Create Password", size =(15, 1), font=16), sg.InputText(key='-password-', font=16, password_char='*')],
             [sg.Button("Submit"), sg.Button("Cancel")]]

    window = sg.Window("Sign Up", layout)

    while True:
        event,values = window.read()
        if event == 'Cancel' or event == sg.WIN_CLOSED:
            break
        else:
            if event == "Submit":
                password = values['-password-']
                username = values['-username-']
                if values['-email-'] != values['-remail-']:
                    sg.popup_error("Error", font=16)
                    continue
                elif values['-email-'] == values['-remail-']:
                    progress_bar()
                    break
    window.close()
create_account()


def login():
    global username,password
    sg.theme("LightBlue2")
    layout = [[sg.Text("Log In", size =(15, 1), font=40)],
            [sg.Text("Username", size =(15, 1), font=16),sg.InputText(key='-usrnm-', font=16)],
            [sg.Text("Password", size =(15, 1), font=16),sg.InputText(key='-pwd-', password_char='*', font=16)],
            [sg.Button('Ok'),sg.Button('Cancel')]]

    window = sg.Window("Log In", layout)

    while True:
        event,values = window.read()
        if event == "Cancel" or event == sg.WIN_CLOSED:
            break
        else:
            if event == "Ok":
                if values['-usrnm-'] == username and values['-pwd-'] == password:
                    sg.popup("Welcome!")
                    break
                elif values['-usrnm-'] != username or values['-pwd-'] != password:
                    sg.popup("Invalid login. Try again")

    window.close()
login()

---

我只是碰巧遇到了这个，不幸的是，帖子中的标签实际上并没有“标记”我。我现在就开始看这个…好的，您正在创建两个单独的窗口（都称为“窗口”）并从这两个窗口引用键（'-usrnm-'和'username'）。当第一个create_account（）窗口关闭时，这些键中存储的值将丢失。您收到一个KeyError，因为当login（）函数打开时，您只能访问值['-usrnm-']和值['-pwd-']。其他键、值['-username-']和值['-password-']都不见了。你知道有什么资源可以让我了解使用事件编码的细节吗？我所看到的一切只是在教如何构建GUI，但它并没有展示如何将事件和代码联系起来。太令人沮丧了@基本上，你想完成什么？我已经使用PySimpleGUI好几年了，感觉很舒服。我从PySimpleGUI文档网站和PySimpleGUI Github学到了我所知道的一切。这两种方法都是了解事件定义的好资源。只是试着学习一下。有些事情是很清楚的，但很多事情是令人困惑的，或者根本没有解释或例子。他们只是告诉你有关语句或方法的情况，但没有确切地解释如何去做。例如，现在我正试图将一个列表打印到一个多行窗口上，但没有任何解释@真是太棒了！谢谢！你知道有什么资源可以让我了解事件编码的细节吗？我所看到的一切只是在教如何构建GUI，但它并没有展示如何将事件和代码联系起来。太令人沮丧了@巴尔加夫·德赛