Login Button Function

I am experimenting with tkinter in python.

At the moment I have created a script which creates a login window which has no function what so ever. I have tried playing around with the def callback(): and command=callback. So I tried making it so that when you press the "Login" button, you can do something (e.g. show loading... and clear text boxes.)

Here is the code:

import tkinter



window = tkinter.Tk()

window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()



def callback():

    button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000")

    button.pack()

    label = tkinter.Label(window, text="Loading...", bg="#FFFFFF", command=callback)



window.mainloop()

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

So the question is - how to make a button?Also, please format the code with the code markdown

– Urosh T.
Nov 25 '18 at 17:03

Move this .Label(..., command=callback to the .Button(..., command=callback and add a ` print('Hello World)'` to your def callback():.

– stovfl
Nov 25 '18 at 18:20

I tried to clarify the code but I'm not 100% I got the indentation right.

– not2qubit
Nov 25 '18 at 22:26

add a comment |

I am experimenting with tkinter in python.

Here is the code:

import tkinter



window = tkinter.Tk()

window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()



def callback():

    button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000")

    button.pack()

    label = tkinter.Label(window, text="Loading...", bg="#FFFFFF", command=callback)



window.mainloop()

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

So the question is - how to make a button?Also, please format the code with the code markdown

– Urosh T.
Nov 25 '18 at 17:03

Move this .Label(..., command=callback to the .Button(..., command=callback and add a ` print('Hello World)'` to your def callback():.

– stovfl
Nov 25 '18 at 18:20

I tried to clarify the code but I'm not 100% I got the indentation right.

– not2qubit
Nov 25 '18 at 22:26

add a comment |

I am experimenting with tkinter in python.

Here is the code:

import tkinter



window = tkinter.Tk()

window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()



def callback():

    button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000")

    button.pack()

    label = tkinter.Label(window, text="Loading...", bg="#FFFFFF", command=callback)



window.mainloop()

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

I am experimenting with tkinter in python.

Here is the code:

import tkinter



window = tkinter.Tk()

window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry = tkinter.Entry(window)

entry.pack()



def callback():

    button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000")

    button.pack()

    label = tkinter.Label(window, text="Loading...", bg="#FFFFFF", command=callback)



window.mainloop()

python tkinter raspberry-pi3

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

edited Nov 25 '18 at 22:24

not2qubit

4,45014065

asked Nov 25 '18 at 16:26

Deon Leggett

asked Nov 25 '18 at 16:26

Deon Leggett

asked Nov 25 '18 at 16:26

Deon Leggett

So the question is - how to make a button?Also, please format the code with the code markdown

– Urosh T.
Nov 25 '18 at 17:03

Move this .Label(..., command=callback to the .Button(..., command=callback and add a ` print('Hello World)'` to your def callback():.

– stovfl
Nov 25 '18 at 18:20

I tried to clarify the code but I'm not 100% I got the indentation right.

– not2qubit
Nov 25 '18 at 22:26

add a comment |

So the question is - how to make a button?Also, please format the code with the code markdown

– Urosh T.
Nov 25 '18 at 17:03

Move this .Label(..., command=callback to the .Button(..., command=callback and add a ` print('Hello World)'` to your def callback():.

– stovfl
Nov 25 '18 at 18:20

I tried to clarify the code but I'm not 100% I got the indentation right.

– not2qubit
Nov 25 '18 at 22:26

So the question is - how to make a button?Also, please format the code with the code markdown

– Urosh T.
Nov 25 '18 at 17:03

Move this .Label(..., command=callback to the .Button(..., command=callback and add a ` print('Hello World)'` to your def callback():.

– stovfl
Nov 25 '18 at 18:20

I tried to clarify the code but I'm not 100% I got the indentation right.

– not2qubit
Nov 25 '18 at 22:26

add a comment |

1 Answer
1

active

oldest

votes

1) The callback function needs to be assigned to the command option on the Button widget.

2) The two entry widgets need different variable names for access in the callback

3) The callback function needs a body of code that does something.

import tkinter



window = tkinter.Tk()



window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry0 = tkinter.Entry(window) # Renamed entry0 to find in callback

entry0.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry1 = tkinter.Entry(window) # Renamed entry1 to differentiate from entry0

entry1.pack()



def callback():

    """ Callback to process a button click. This will be called whenever the button is clicked.

        As a simple example it simply prints username and password.

    """

    print("Username: ", entry0.get(), "    Password: ", entry1.get())



button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000", command=callback)

button.pack()



window.mainloop()

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

add a comment |

Your Answer

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53469505%2flogin-button-function%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

import tkinter



window = tkinter.Tk()



window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry0 = tkinter.Entry(window) # Renamed entry0 to find in callback

entry0.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry1 = tkinter.Entry(window) # Renamed entry1 to differentiate from entry0

entry1.pack()



def callback():

    """ Callback to process a button click. This will be called whenever the button is clicked.

        As a simple example it simply prints username and password.

    """

    print("Username: ", entry0.get(), "    Password: ", entry1.get())



button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000", command=callback)

button.pack()



window.mainloop()

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

add a comment |

import tkinter



window = tkinter.Tk()



window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry0 = tkinter.Entry(window) # Renamed entry0 to find in callback

entry0.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry1 = tkinter.Entry(window) # Renamed entry1 to differentiate from entry0

entry1.pack()



def callback():

    """ Callback to process a button click. This will be called whenever the button is clicked.

        As a simple example it simply prints username and password.

    """

    print("Username: ", entry0.get(), "    Password: ", entry1.get())



button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000", command=callback)

button.pack()



window.mainloop()

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

add a comment |

import tkinter



window = tkinter.Tk()



window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry0 = tkinter.Entry(window) # Renamed entry0 to find in callback

entry0.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry1 = tkinter.Entry(window) # Renamed entry1 to differentiate from entry0

entry1.pack()



def callback():

    """ Callback to process a button click. This will be called whenever the button is clicked.

        As a simple example it simply prints username and password.

    """

    print("Username: ", entry0.get(), "    Password: ", entry1.get())



button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000", command=callback)

button.pack()



window.mainloop()

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

import tkinter



window = tkinter.Tk()



window.title("Login")

window.geometry("250x150")

window.configure(background="#FFFFFF")



label = tkinter.Label(window, text="Please Login to continue:", bg="#FFFFFF", font=("PibotoLt", 16))

label.pack()

label = tkinter.Label(window, text="username:", bg="#FFFFFF")

label.pack()

entry0 = tkinter.Entry(window) # Renamed entry0 to find in callback

entry0.pack()

label = tkinter.Label(window, text="password:", bg="#FFFFFF")

label.pack()

entry1 = tkinter.Entry(window) # Renamed entry1 to differentiate from entry0

entry1.pack()



def callback():

    """ Callback to process a button click. This will be called whenever the button is clicked.

        As a simple example it simply prints username and password.

    """

    print("Username: ", entry0.get(), "    Password: ", entry1.get())



button = tkinter.Button(window, text="Login", fg="#FFFFFF", bg="#000000", command=callback)

button.pack()



window.mainloop()

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

edited Nov 25 '18 at 21:45

answered Nov 25 '18 at 18:36

Tls Chris

47338

answered Nov 25 '18 at 18:36

Tls Chris

47338

answered Nov 25 '18 at 18:36

Tls Chris

47338

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

add a comment |

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

Thanks Chris for the help. I see what I had done wrong now. Deon Leggett

– Deon Leggett
Nov 30 '18 at 16:02

add a comment |

draft saved

draft discarded

Thanks for contributing an answer to Stack Overflow!

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

搜尋此網誌

Ytukyg