[Tkinter] password with Entry widget

[TAREKYANGUI]

Hi

I tried to set a password with widget Entry,

The right password is "tarek"
Only 3 attempts are allowed

the goal is :
when i enter a wrong password this text will appear in comment area :
*before the 1er attempt no text will appear
*after the 1st wrong password entry : "Try again, remaining attempts :2"
*after the 2st wrong password entry : "Try again, remaining attempts :1"
*after the 3st wrong password entry : "Acces denied, out of try" and the program will exit

when i enter the correct password, this text will appear in comment area : "Congratulation, acces autorized" and an other file that i alled "program2.py" will automatically executed.

The issues with my code are :
-this message appears even after the 2nd or the 3rd wrong password entry : "Try again, remaining attempts :2"
-I dont know how to insert a command to exit after the 3rd wrong attempt
-I dont know how to insert a command to execute the other program "program2.py" when i enter the right password

I wonder if i have to use the "WHILE function" instead of the "if function" or to use an other widget or kind of event?

Please can you help me to correct my code .

(Sorry I couldnt use python tags )

My code is the following :



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# -*- coding: utf-8 -*-   from tkinter import ttk, Entry #import tkinter as tk from tkinter import * from tkinter import filedialog import os from PIL import Image, ImageTk import sqlite3 import getpass Profile = {1:""}   def authorization(event) :     rightpassword="tarek"     word = entrypassword.get()     nb_attempt = 1     attempt_limit = 3     attempt_authorized = True     if word != rightpassword :         nb_attempt = nb_attempt+1         if nb_attempt <= attempt_limit:             attempt_authorized = True             comments = ("Try again, remaining attempts : " + str(attempt_limit +1 - nb_attempt))             entrycomment.delete(0, END)             entrycomment.insert(0, comments)             print(entrycomment.get())         else :             attempt_authorized = False             comments = ("Access denied, out of try")             entrycomment.delete(0, END)             entrycomment.insert(0, comments)             print(entrycomment.get())             exit     else:         comments = "Congratulation Access authorized"         entrycomment.delete(0, END)         entrycomment.insert(0, comments)         print(entrycomment.get())         open("D:/program2.py")   root = Tk() root.title("Access Application") root.geometry("1400x480") #root.configure(bg = "#eaeaea")   # Add Title1 lblTitle1 = Label(root , text = "Gestion des accès" , font = ("Arial" , 21) , bg="darkblue" , fg = "white" ) lblTitle1.place(x=50 , y=0 , width=300)   # password area lbpassword = Label(root , text = "Password :"  , font = ("Arial" , 21), bg="darkblue" , fg = "white" ) lbpassword.place(x=450 , y=200 , width=300) entrypassword = Entry(root, font = ("Arial" , 21)) entrypassword.bind("<Return>" , authorization) entrypassword.place(x=780 , y=200 , width=300)   lbcomment = Label(root , text = "Comment :"  ,font = ("Arial" , 21), bg="black" , fg = "white" ) lbcomment.place(x=180 , y=250 , width=250) entrycomment = Entry(root , font = ("Arial" , 21), bg="white" , fg = "red" ) entrycomment.place(x=450 , y=250 , width=800)       root.mainloop()

[bowlofred]

The callback is called every time you hit <Return> due to the binding.

But the count isn't stored outside this function. Every time you call it, the attempt count is reset to 1 (line 16). You'd need to store the attempt count outside this function (in an enclosing class, an enclosing function, or as a global).

[TAREKYANGUI]

ok, i undestand the issue but how to solve it, can you please propose a correct code

thank you in advance

[TAREKYANGUI]

Hi

I tried to set a password with widget Entry,

The right password is "tarek"
Only 3 attempts are allowed

the goal is :
when i enter a wrong password this text will appear in comment area :
*before the 1er attempt no text will appear
*after the 1st wrong password entry : "Try again, remaining attempts :2"
*after the 2st wrong password entry : "Try again, remaining attempts :1"
*after the 3st wrong password entry : "Acces denied, out of try" and the program will exit

when i enter the correct password, this text will appear in comment area : "Congratulation, acces autorized" and an other file that i alled "program2.py" will automatically executed.

The issues with my code are :
-this message appears even after the 2nd or the 3rd wrong password entry : "Try again, remaining attempts :2"
-I dont know how to insert a command to exit after the 3rd wrong attempt
-I dont know how to insert a command to execute the other program "program2.py" when i enter the right password

I wonder if i have to use the "WHILE function" instead of the "if function" or to use an other widget or kind of event?

Please can you help me to correct my code . I am waiting your proposal



My code is the following :



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# -*- coding: utf-8 -*-    from tkinter import ttk, Entry #import tkinter as tk from tkinter import * from tkinter import filedialog import os from PIL import Image, ImageTk import sqlite3 import getpass Profile = {1:""}    def authorization(event) :     rightpassword="tarek"     word = entrypassword.get()     nb_attempt = 1     attempt_limit = 3     attempt_authorized = True     if word != rightpassword :         nb_attempt = nb_attempt+1         if nb_attempt <= attempt_limit:             attempt_authorized = True             comments = ("Try again, remaining attempts : " + str(attempt_limit +1 - nb_attempt))             entrycomment.delete(0, END)             entrycomment.insert(0, comments)             print(entrycomment.get())         else :             attempt_authorized = False             comments = ("Access denied, out of try")             entrycomment.delete(0, END)             entrycomment.insert(0, comments)             print(entrycomment.get())             exit     else:         comments = "Congratulation Access authorized"         entrycomment.delete(0, END)         entrycomment.insert(0, comments)         print(entrycomment.get())         open("D:/program2.py")    root = Tk() root.title("Access Application") root.geometry("1400x480") #root.configure(bg = "#eaeaea")    # Add Title1 lblTitle1 = Label(root , text = "Gestion des accès" , font = ("Arial" , 21) , bg="darkblue" , fg = "white" ) lblTitle1.place(x=50 , y=0 , width=300)    # password area lbpassword = Label(root , text = "Password :"  , font = ("Arial" , 21), bg="darkblue" , fg = "white" ) lbpassword.place(x=450 , y=200 , width=300) entrypassword = Entry(root, font = ("Arial" , 21)) entrypassword.bind("<Return>" , authorization) entrypassword.place(x=780 , y=200 , width=300)    lbcomment = Label(root , text = "Comment :"  ,font = ("Arial" , 21), bg="black" , fg = "white" ) lbcomment.place(x=180 , y=250 , width=250) entrycomment = Entry(root , font = ("Arial" , 21), bg="white" , fg = "red" ) entrycomment.place(x=450 , y=250 , width=800)          root.mainloop()

[micseydel]

I soft-deleted the post you made 9 minutes ago. Please don't create multiple threads with the same post.

[deanhystad]

If you don't know how to solve a problem like this you have a big hole in your understanding of Python variables and scope. You should do some reading because this same problem is going to keep reappearing in ever more devious ways until you understand what is going on. When I was first learning Python I found this useful:

https://www.geeksforgeeks.org/namespaces...in-python/

Variables defined inside a function exist in the function's scope (or namespace). These variables disappear once the function is done running. You cannot define the number of password tries inside your authorization function because each time authorization function is done running, the nb_attempt variable is forgotten (is deleted). You must define the nb_attempt variable somewhere else, in a scope/namespace that is not deleted.

[TAREKYANGUI]

I tried several times but i could not.
If you can propose an adjustment of my code, i would be graceful.
Otherwise i will make the password with the input widget(this one i could make it running correctly).
thanks for your support.

[SnowwyWolf]

I tried several times but i could not.
If you can propose an adjustment of my code, i would be graceful.
Otherwise i will make the password with the input widget(this one i could make it running correctly).
thanks for your support.

Note, I've only been learning Python for around 2 weeks total but I can help show your problem in a simple way. Generally you want to avoid making a variable global and instead change the way in which you approach the password solving (as you mentioned a while loop for example) is probably far more sensible. I also tried to make it very simple to demonostrate the difference in variable scope as oppose to tackling your exact issue.

Essentially the people before were trying to point you in the right direction and even mention the line that is the issue and an explaination on why it's an issue. If you're unable to find the cause yourself, it's pretty much certain you'll face the same issue over and over again in the future and that is what everyone is trying to help you avoid.

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def passs() :     password = "Enter"     guess = input("Enter password: ")     nbattempt = 1     attemptlimit = 3     if guess != password :         print("Try again, attempts remaining:", attemptlimit - nbattempt)         nbattempt = nbattempt + 1     return passs() passs()

If you run that your output will be the same, even if you enter the incorrect password twice.
You need to make the variables that your function is changing to be global, e.g. they will change the variable outside the scope of the function, rather than just changing the variable within the function itself.

Run both lots of code and see the difference.

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def passs(attempt, limit) :     global nbattempt     global attemptlimit     password = "Enter"     guess = input("Enter password: ")     if guess != password :         limit = attemptlimit - nbattempt         print("Try again, attempts remaining:", limit)         nbattempt = nbattempt + 1     return limit   nbattempt = 1 attemptlimit = 3 passs(nbattempt, attemptlimit) passs(nbattempt, attemptlimit)

As I say this isn't me fixing your code but trying to show you how the scope of variables work and why your variable isn't changing even with repeat incorrect password attempts.

[Yoriz]

Creating GUI code is easier if you use classes.
Here is an example of your code turned into a class.

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import tkinter as tk     class Main:     def __init__(self, root):         self.root = root         self.rightpassword = "tarek"         self.nb_attempt = 0         self.attempt_limit = 3         self.attempt_authorized = True           root.title("Access Application")         root.geometry("1400x480")         # root.configure(bg = "#eaeaea")           # Add Title1         lblTitle1 = tk.Label(root, text="Gestion des accès", font=(             "Arial", 21), bg="darkblue", fg="white")         lblTitle1.place(x=50, y=0, width=300)           # password area         lbpassword = tk.Label(root, text="Password :", font=(             "Arial", 21), bg="darkblue", fg="white")         lbpassword.place(x=450, y=200, width=300)         entrypassword = tk.Entry(root, font=("Arial", 21))         entrypassword.bind("<Return>", self.entrypassword_return_event)         entrypassword.place(x=780, y=200, width=300)         self.entrypassword = entrypassword           lbcomment = tk.Label(root, text="Comment :", font=(             "Arial", 21), bg="black", fg="white")         lbcomment.place(x=180, y=250, width=250)         entrycomment = tk.Entry(root, font=("Arial", 21), bg="white", fg="red")         entrycomment.place(x=450, y=250, width=800)         self.entrycomment = entrycomment       def entrypassword_return_event(self, event):         word = self.entrypassword.get()         if word != self.rightpassword:             self.authorization_attempt()         else:             self.update_entry_comment("Congratulation Access authorized")             self.authorized_code()       def authorization_attempt(self):         self.nb_attempt += 1         if self.nb_attempt < self.attempt_limit:             self.attempt_authorized = True             self.update_entry_comment((                 "Try again, remaining attempts : "                 f"{self.attempt_limit-self.nb_attempt}"))         else:             self.attempt_authorized = False             self.update_entry_comment("Access denied, out of trys")             self.root.after(3000, self.root.quit)       def update_entry_comment(self, comment):         self.entrycomment.delete(0, tk.END)         self.entrycomment.insert(0, comment)       def authorized_code(self):         print('add authorized code here')     root = tk.Tk() Main(root) root.mainloop()

[TAREKYANGUI]

Great, thanks for your support