Why does this not add? - python

I've looked other questions and have tried to fix this but I am really struggling with having my code print back the answer.
from tkinter import *
root = Tk()
label1 = Label(root, text="Number 1")
label2 = Label(root, text="Number 2")
labelplus = Label(root, text="+")
label1.grid(row=0, sticky=E)
label2.grid(row=3, sticky=E)
labelplus.grid(row=2, column=1)
entry1_var= StringVar()
entry2_var= StringVar()
entry1 = Entry(root, textvariable= entry1_var)
entry2 = Entry(root, textvariable= entry2_var)
entry1.grid(row=0, column=1)
entry2.grid(row=3, column=1)
first = (entry1_var.get()
second =(entry2_var.get()
def additionStuff(event):
totalNumbers = (first + second)
print(totalNumbers)
button1 = Button(root, text="Add Numbers")
button1.bind("<Button-1>", additionStuff)
button1.grid(row=4, column=1)
root.mainloop()
Why does my function now print back the answer?

You need to call StringVar.get inside of additionStuff:
def additionStuff(event):
first = entry1_var.get()
second = entry2_var.get()
totalNumbers = (float(first) + float(second))
print(totalNumbers)
Otherwise you're getting the value of first and second before the user has had opportunity to enter anything.

Related

Tkinter Mainloop Unreachable

I made wordle, but I want to make it look more like the official wordle so my final goal is to make 5 tkinter entries on every row, and have them linked to each other. When I run this code, mainloop at the bottom is greyed out and no window appears.
root = Tk()
root.geometry('400x400')
def testlen():
global textinentry1
textinentry1= entry1.get()
if len(textinentry1) >1 :
entry1.delete(0,END)
entry1.insert(0,textinentry1[0])
entry2.delete(0, END)
entry2.insert(0,textinentry1[1] )
entry1 = Entry(root,width=5, font = ('Georgia 18'), justify=CENTER)
entry1.grid(row=0, column=0)
entry2 = Entry(root, width=5, font = ('Georgia 18'), justify=CENTER)
entry2.grid(row=0, column=1)
entry3 = Entry(root, width = 5,font = ('Georgia 18'), justify=CENTER)
entry3.grid(row=0, column=2)
while True:
testlen()
root.mainloop()
What did I do wrong?
The mainloop is executed after while loop end Which is never end this is because you are not seeing the window here.
If you want to run this code then you can use the root.after() method to create a loop.
from tkinter import *
root = Tk()
root.geometry('400x400')
def testlen():
global textinentry1
textinentry1= entry1.get()
if len(textinentry1) >1 :
entry2.delete(0, END)
entry2.insert(0,textinentry1[1] )
entry1 = Entry(root,width=22, font = ('Georgia 18'), justify=CENTER)
entry1.grid(row=0, column=0)
entry2 = Entry(root, width=22, font = ('Georgia 18'), justify=CENTER)
entry1button = Button(root, text="Enter", command = lambda :testlen())
entry1button.grid(row=1, column=0)
entry2.grid(row=2, column=0)
entry3 = Entry(root, width = 22,font = ('Georgia 18'), justify=CENTER)
entry3.grid(row=4, column=0)
def loop():
testlen()
root.after(1,loop) # 1 is 1 millisecond. Here root.after method call the loop function after 1 millisecond without crashing your code.
loop()
root.mainloop()

If-Else not working in Tkinter under functions please solve this question :

from tkinter import *
import tkinter.messagebox as tmsg
root = Tk()
def myaccount():
Label(root, text="\n\nEnter Your Account Number : ").pack(anchor="nw")
global en
en = Entry(font=" helectiva 11")
en.pack(anchor="nw")
def detail():
if en=="91xxxxxxxx":
Label(text="Hello").pack()
b = Button(root, text="View my Account Details",borderwidth=10,command=detail)
b.pack(anchor="nw")
txt = StringVar()
txt.set("——Welcome To Banking System Application——")
txt1 = StringVar()
txt1.set("*****************************************************")
txt2 = StringVar()
txt2.set("\n\nChoose from the Options :")
txt3 = StringVar()
txt3.set("—————————————————————————————")
Label(root, textvariable = txt).pack()
Label(root, textvariable = txt1).pack()
Label(root, textvariable = txt2).pack()
Label(root, textvariable= txt3).pack()
Button(root, text="View My Account",borderwidth=10,command=myaccount).pack(anchor="nw",ipadx=32)
Button(root, text="New Account",borderwidth=10).pack(anchor="nw",ipadx=72)
Button(root, text="Make a Transactiom",borderwidth=10).pack(anchor="nw")
Button(root, text="Exit",borderwidth=10,command=quit).pack(anchor="nw",ipadx=170)
root.mainloop()
Please help me with this. The if clause in my detail function is not working. I tried to solve it for 5 hours straight but couldn't find the correct reason. But if you find the reason please give the answer, I will be very thankful to that person.
An entry object cannot be a string. Instead, you must get the text inside the entry object:
if en.get() == '91xxxxxxxx'
Label(text="Hello").pack()
Final code:
from tkinter import *
import tkinter.messagebox as tmsg
root = Tk()
def myaccount():
Label(root, text="\n\nEnter Your Account Number : ").pack(anchor="nw")
global en
en = Entry(font=" helectiva 11")
en.pack(anchor="nw")
def detail():
if en.get() == '91xxxxxxxx'
Label(text="Hello").pack()
b = Button(root, text="View my Account Details",borderwidth=10,command=detail)
b.pack(anchor="nw")
txt = StringVar()
txt.set("——Welcome To Banking System Application——")
txt1 = StringVar()
txt1.set("*****************************************************")
txt2 = StringVar()
txt2.set("\n\nChoose from the Options :")
txt3 = StringVar()
txt3.set("—————————————————————————————")
Label(root, textvariable = txt).pack()
Label(root, textvariable = txt1).pack()
Label(root, textvariable = txt2).pack()
Label(root, textvariable= txt3).pack()
Button(root, text="View My Account",borderwidth=10,command=myaccount).pack(anchor="nw",ipadx=32)
Button(root, text="New Account",borderwidth=10).pack(anchor="nw",ipadx=72)
Button(root, text="Make a Transactiom",borderwidth=10).pack(anchor="nw")
Button(root, text="Exit",borderwidth=10,command=quit).pack(anchor="nw",ipadx=170)
root.mainloop()

I want to take user input and output it inside GUI

I want to take user input and output it inside GUI ...
my code
from tkinter import *
root = Tk()
root.geometry("644x344")
def printSomething():
label = Label(root, text="???")
label.grid(row=1, column=2)
ok=Label(root, text="Type your name").grid(row=2,column=1)
entryvalue = StringVar()
entry= Entry(root, textvariable=entryvalue)
entry.grid(row=2, column=2)
button = Button(root, text="Print Me", command=printSomething)
button.grid(row=3, column=2)
root.mainloop()
To get the text from an input box, use inputbox.get(). Also, don't set the ok variable to Label(root, text="Type your name").grid(row=2,column=1). This will be set as NoneType, so do
ok = Label(root, text="Type your name").grid(row=2,column=1)
ok.grid(row=2, column=1)
Here is your code:
from tkinter import *
root = Tk()
root.geometry("644x344")
def printSomething():
label = Label(root, text=entry.get())
label.grid(row=1, column=2)
ok=Label(root, text="Type your name")
ok.grid(row=2,column=1)
entryvalue = StringVar()
entry= Entry(root, textvariable=entryvalue)
entry.grid(row=2, column=2)
button = Button(root, text="Print Me", command=printSomething)
button.grid(row=3, column=2)
root.mainloop()
First thing, In order to accept and display the output on the screen you have to use either Label widget or Canvas Text. Since your code is not updating the Label widget thus I am here doing what you want to do.
First, create a Label widget in the main window,
Get the user input by using.get() method,
print and display the user input.
from tkinter import *
root = Tk()
root.geometry("644x344")
def printSomething():
label.config(text=entry.get())
ok=Label(root, text="Type your name")
ok.grid(row=2,column=1)
entryvalue = StringVar()
entry= Entry(root, textvariable=entryvalue)
entry.grid(row=2, column=2)
button = Button(root, text="Print Me", command=printSomething)
button.grid(row=3, column=2)
#Create a Label to print the Name
label= Label(root, text="", font= ('Helvetica 14 bold'), foreground= "red3")
label.grid(row=1, column=2)
root.mainloop()

How do I print the random outcome of an entry input in a list?

Code
list = [ee1.get(), ee2.get(), ee3.get(), ee4.get(), ee5.get(), ee6.get(), ee7.get(), ee8.get(), ee9.get(), ee10.get()]
context = "What does", random.choice(list),"mean?"
labelquestion = Label(window, text = context, font = "Serif 10 bold")
Question
When I run this, it outputs "{What does} {} mean?"
How can I fix this so that it outputs "What does"-random entry from list-"this mean?"
(The things in the list are entries)
Below is an example based on your code and information in the comment:
import tkinter as tk
import random
window = tk.Tk()
ee1 = tk.Entry(window)
ee1.grid(row=0, column=0)
ee2 = tk.Entry(window)
ee2.grid(row=0, column=1)
ee3 = tk.Entry(window)
ee3.grid(row=0, column=2)
ee4 = tk.Entry(window)
ee4.grid(row=0, column=3)
ee5 = tk.Entry(window)
ee5.grid(row=0, column=4)
ee6 = tk.Entry(window)
ee6.grid(row=1, column=0)
ee7 = tk.Entry(window)
ee7.grid(row=1, column=1)
ee8 = tk.Entry(window)
ee8.grid(row=1, column=2)
ee9 = tk.Entry(window)
ee9.grid(row=1, column=3)
ee10 = tk.Entry(window)
ee10.grid(row=1, column=4)
def submit():
words = [ee1.get(), ee2.get(), ee3.get(), ee4.get(), ee5.get(),
ee6.get(), ee7.get(), ee8.get(), ee9.get(), ee10.get()]
context = f"What does '{random.choice(words)}' mean?"
labelquestion.config(text=context)
tk.Button(window, text="Submit", command=submit).grid(row=2, column=0, sticky='w')
labelquestion = tk.Label(window, font="Serif 10 bold")
labelquestion.grid(row=2, column=1, columnspan=4)
window.mainloop()

Using StringVar data as a list

I've been following this website for a while. It is really helpful. So, thanks for all the useful tips.
I've been searching for this answer for the past two weeks without any success, so now I'm compelled to ask out of total frustration with my current obstacle.
How do you use StringVar as a list?
Basically, I was coding the following program for my wife. The code is pretty messy as it is my first program I've tried to code.
The idea was that I would take 3 variables; password, secret number and website and then do some work on them using if statements and lists to create a unique password.
First problem was that I couldn't restrict the character length of the entry widgets but in the end i solved that but i still want to limit the characters that can be input.
for instance in the website entry box, i want to allow only letters.
If I could convert StringVar to a list, I could do some work with messy if statements to allow only certain characters in each index but everythime i try it says that stringvars cant be used as a list.
I need them as a list to limit the type of characters that can be entered and also so that i can do work on the variables to get the final output.
CODE:
from Tkinter import *
import Tkinter
from PIL import Image, ImageTk
import os
Title= ("Helvetica", 20, "bold", "underline")
Heading= ("Courier", 20, "bold")
Body= ("Courier", 15)
Body1= ("Courier", 15, "bold")
notice= ("Courier", 10)
Body2= ("Courier", 15, "bold", "underline")
root = Tk()
root.title("Koala Series: Encrypter")
root.configure(background="#ffefd5")
root.geometry('{}x{}'.format(510, 600))
root.columnconfigure(0, weight=1)
root.rowconfigure(0, weight=1) # not needed, this is the default behavior
root.rowconfigure(1, weight=1)
root.rowconfigure(2, weight=1)
website = StringVar()
Titlemsg = Label(root, text="Koala Encrypter", font=Title, bg="#00FA9A", relief=RAISED,)
Titlemsg.grid( row=7, pady=25, sticky=N+S+E+W)
img1 = ImageTk.PhotoImage(Image.open("koala.jpeg"))
startpic = Label(root, image = img1, relief=RIDGE )
startpic.grid( row=10,pady=25, )
Head = Label(root,anchor=CENTER,text="Welcome to the Koala Encrypter \n\n A Koala series tool that allows you\n\n to Encrypt your passwords \n\n Click \'Start Encrypting\' to continue \n\n", font=Body, bg="#ffefd5", relief=RAISED,)
Head.grid( row=14, pady=25, columnspan=2, sticky=N+S+E+W)
web = Label(root, text="WEBSITE: ", font=Body, bg="#ffefd5", justify=CENTER,)
#website.set("Enter your website here")
entry = Entry(root,textvariable=website , justify=CENTER,relief=SUNKEN,cursor="pencil", takefocus=True )
Notice1 = Label( text="Please only insert the first 5 letters of the website!!",font=notice, bg="#ffefd5", fg="#0000ff",)
passw = Label(root, text="PASSWORD: ", font=Body, bg="#ffefd5", justify=CENTER)
passwordvar= StringVar()
entry1 = Entry(root, textvariable= passwordvar, justify=CENTER,relief=SUNKEN, cursor="pencil", takefocus=True )
Notice= Label(root, text="Your password must only be 5 characters long!!", font=notice, bg="#ffefd5", fg="#0000ff", justify=CENTER)
def callback(event):
if "<0>":
top = Toplevel(bg="#ffefd5")
top.title("Koala Encrypter")
popuptitle = Label(top, text="Your secret number must be between 1 and 9:", font=Body1, fg="red", bg="#ffefd5")
popuptitle.grid(row = 2,column=0, padx=5, pady = 50,sticky=N+S+E+W)
secret = Label(root, text="SECRET NUMBER: ", font=Body, bg="#ffefd5" , justify=CENTER,)
numbervar = StringVar()
entry2 = Entry(root, textvariable=numbervar , justify=CENTER,relief=SUNKEN,cursor="pencil", takefocus=True)
entry2.bind("<0>", callback)
Notice2 = Label(root, text="your secret number must be between 1 and 9!!!", font=notice, bg="#ffefd5", fg="#0000ff", justify=CENTER)
img = ImageTk.PhotoImage(Image.open("Koalalogo.jpg"))
panel = Label(root, image = img, relief=SUNKEN)
correct= Label(root, text="Check the below details \n\n Click \'yes\' if they are correct \n\n Click \'No\' to go back \n\n", font=Body1, bg="#ffefd5")
yourwebsite = Label(root, text="The Website is :", font=Body, bg="#ffefd5")#
website1 = Label(root, font=Body2, bg="#ffefd5",fg= "#00009C", textvariable = website)#
yourpassword = Label(root, text="Your Password is:", font=Body, bg="#ffefd5")
yournumber1= Label(root, font=Body2, bg="#ffefd5",textvariable = numbervar , fg= "#00009C", )
yourpassword1 = Label(root, font=Body2, bg="#ffefd5",textvariable = passwordvar , fg= "#00009C", )
yournumber= Label(root, text="Your Secret Number is:", font=Body, bg="#ffefd5")
def restart():
Titlemsg.grid_forget()
correct.grid_forget()
yourwebsite.grid_forget()
website1.grid_forget()
yourpassword.grid_forget()
yourpassword1.grid_forget()
yournumber.grid_forget()
yournumber1.grid_forget()
panel.grid_forget()
toolbar.grid_forget()
yes.grid_forget()
no.grid_forget()
entry.delete(0,END)
entry1.delete(0,END)
entry2.delete(0,END)
Titlemsg.grid( row=7, pady=25, sticky=N+S+E+W)
startpic.grid( row=10,pady=25, )
Head.grid( row=14, pady=25, columnspan=2, sticky=N+S+E+W)
toolbar.grid( row=21, )
end.grid(column =3, row=1, sticky=N+S+E+W)
begin.grid(column =2, row=1, sticky=N+S+E+W)
def start():
#entry.destroy()
#entry1.destroy()
#entry2.destroy()
toolbar.grid_forget()
Titlemsg.grid_forget()
begin.grid_forget()
Head.grid_forget()
startpic.grid_forget()
web.grid(row=3, column=0, sticky= W+E)
entry.grid( row=3, column=1, padx=50)
passw.grid(row=10, column=0)
Notice1.grid(row=4, sticky=N+S+E+W, columnspan=2)
entry1.grid(row=10, column=1)
Notice.grid(row=11,column=0, columnspan=2,)
secret.grid(row=13, column=0)
entry2.grid( row=13, column=1)
Notice2.grid( row=14,column=0, columnspan=2,)
panel.grid(row=20,columnspan=2, pady=70)
confirm.grid(column =1, row=1)
reset.grid(column =2, row=1)
end.grid(column =3, row=1)
toolbar.grid(row=21, column=0, columnspan=2)
Titlemsg.grid(row=0, column=0, columnspan=2, sticky=E+W)
def Reset():
entry.delete(0,END)
entry1.delete(0,END)
entry2.delete(0,END)
def clear_text():
#entry.destroy()
#entry1.destroy()
#entry2.destroy()
panel.grid_forget()
entry.grid_forget()
entry1.grid_forget()
entry2.grid_forget()
web.grid_forget()
Notice.grid_forget()
passw.grid_forget()
secret.grid_forget()
Notice1.grid_forget()
Notice2.grid_forget()
confirm.grid_forget()
reset.grid_forget()
toolbar.grid_forget()
Titlemsg.grid_forget()
Titlemsg.grid(row=0, column=0, columnspan=2, sticky=E+W)
correct.grid(row=1, column=0, columnspan=2, sticky=E+W)
yourwebsite.grid(row=2,column=0,sticky=E+W, pady=5)
website1.grid(row=2, column=1, padx=65,sticky=E+W, pady=5)
yourpassword.grid(row=4, column=0,sticky=E+W, pady=5)
yourpassword1.grid(row=4, column=1, padx=65,sticky=E+W, pady=5)
yournumber.grid(row=6, column=0,sticky=E+W, pady=5)
yournumber1.grid(row=6, column=1, padx=65,sticky=E+W, pady=5)
panel.grid(row=8, column=0, columnspan=2, pady=50)
toolbar.grid(row=10, column=0, columnspan=2)
yes.grid(column =1, row=1)
no.grid(column =2, row=1)
def popup():
top = Toplevel(bg="#ffefd5")
top.title("Koala Encrypter")
popuptitle = Label(top, text="Your password is:", font=Body1, fg="red", bg="#ffefd5")
popuptitle.grid(row = 2,column=0, padx=5, pady = 50,sticky=N+S+E+W)
pwd= Label(top, font=Body2, text="password", bg="#ffefd5", fg= "#00009C", ) #textvariable = newpassword ,
pwd.grid(row= 2, column=1,sticky=E+W,padx=15)
button = Button(top, text="OK", command=top.destroy, relief=RAISED )
button.grid(column =0,columnspan=2, row=4, sticky=N+S+E+W)
def helpmsg():
top = Toplevel(bg="#ffefd5")
top.title("Koala Encrypter")
popuptitle = Label(top, text="Koala series 1.0 - Koala Encrypter", font=Title, bg="#00FA9A", relief=RAISED,)
popuptitle.grid(row = 2,column=0, padx=5, pady = 50,sticky=N+S+E+W)
pwd= Label(top, font=Body, text="Free software to help you keep your acounts safe", bg="#ffefd5")
pwd.grid(row= 1,sticky=E+W,)
Titlems = Label(top, text="Koala Encrypter", font=Title, bg="#00FA9A", relief=RAISED,)
Titlems.grid( row=0, pady=25, sticky=N+S+E+W)
button = Button(top, text="OK", command=top.destroy, relief=RAISED )
button.grid(column =0,columnspan=2, row=4, sticky=N+S+E+W)
max_len = 5
def on_write(*args):
s = website.get()
if len(s) > max_len:
website.set(s[:max_len])
website.trace_variable("w", on_write)
max_len1 = 5
def on_write(*args):
s = passwordvar.get()
if len(s) > max_len1:
passwordvar.set(s[:max_len1])
passwordvar.trace_variable("w", on_write)
max_len2 = 1
def on_write(*args):
s = numbervar.get()
if len(s) > max_len2:
numbervar.set(s[:max_len2])
numbervar.trace_variable("w", on_write)
toolbar = Frame(root)
reset = Button(toolbar, text="Reset", width=6, command=Reset, cursor="cross", relief=RAISED, takefocus=True )
end = Button(toolbar, text="Quit" ,command=root.destroy, relief=RAISED, cursor="X_cursor", takefocus=True)
end.grid(column =3, row=1, sticky=N+S+E+W)
begin = Button(toolbar, text="Start Encrypting", command=start, relief=RAISED, cursor="star",takefocus=True )
begin.grid(column =2, row=1, sticky=N+S+E+W)
confirm = Button(toolbar, text="Next", command =clear_text, cursor="star", relief=RAISED,takefocus=True )
yes = Button(toolbar, text="Yes", command =popup, cursor="star", relief=RAISED,takefocus=True )
no = Button(toolbar, text="No", command =restart, cursor="pirate", relief=RAISED, takefocus=True )
toolbar.grid( row=21, )
menu = Menu(root)
root.config(menu=menu)
filemenu = Menu(menu)
menu.add_cascade(label="File", menu=filemenu)
filemenu.add_command(label="Restart", command=restart)
filemenu.add_separator()
filemenu.add_command(label="Exit", command=root.destroy)
helpmenu = Menu(menu)
menu.add_cascade(label="Help", menu=helpmenu, )
helpmenu.add_command(label="About...", command=helpmsg)
app = root
root.mainloop()
# add functionality, fix validation
To restrict the type/number of characters that can be typed into an entry widget, you can use the entry validatecommand. Here is an example to allow only letters and another one to restrict the entry to 4 digits:
from tkinter import Tk, Entry, Label
def only_letters(action, char):
if action == "1":
# a character is inserted (deletion is 0) allow the insertion
# only if the inserted character char is a letter
return char.isalpha()
else:
# allow deletion
return True
def only_numbers_max_4(action, new_text):
if action == "1":
return new_text.isdigit() and len(new_text) <= 4
else:
return True
root = Tk()
# register validate commands
validate_letter = root.register(only_letters)
validate_nb = root.register(only_numbers_max_4)
Label(root, text="Only letters: ").grid(row=0, column=0)
e1 = Entry(root, validate="key", validatecommand=(validate_letter, '%d', '%S'))
# %d is the action code and %S the inserted/deleted character
e1.grid(row=0, column=1)
Label(root, text="Only numbers, at most 4: ").grid(row=1, column=0)
e2 = Entry(root, validate="key", validatecommand=(validate_nb, '%d', '%P'))
# %P is the new content of the entry after the modification
e2.grid(row=1, column=1)
root.mainloop()
For more details on entry validation, see http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/entry-validation.html

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