PySimpleGUI-登录身份验证器

如何解决PySimpleGUI-登录身份验证器

我无法使登录身份验证器正常工作。除了login（）函数，其他所有东西都可以正常工作。另外两个函数progress_bar（）和create_account（）可以正常运行。我不断收到 KeyError：'-username-'消息。我已经尝试了一切，甚至没有使用函数。我找不到问题。任何人？ @MacItaly

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",font=16),sg.InputText(key='-email-',font=16)],[sg.Text("Re-enter E-mail",sg.InputText(key='-remail-',[sg.Text("Create Username",sg.InputText(key='-username-',[sg.Text("Create Password",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",font=40)],[sg.Text("Username",sg.InputText(key='-usrnm-',[sg.Text("Password",sg.InputText(key='-pwd-',password_char='*',[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()

解决方法

关闭Windows gui后不能使用values['-password-']。您必须将用户名和密码存储在变量中。通过使用变量，您可以在登录功能时验证用户名和密码。

尝试一下：

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",font=16),sg.InputText(key='-email-',font=16)],[sg.Text("Re-enter E-mail",sg.InputText(key='-remail-',[sg.Text("Create Username",sg.InputText(key='-username-',[sg.Text("Create Password",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",font=40)],[sg.Text("Username",sg.InputText(key='-usrnm-',[sg.Text("Password",sg.InputText(key='-pwd-',password_char='*',[sg.Button('Ok'),sg.Button('Cancel')]]

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