Behavior of your program is a bit unclear for me, but I try to help.
First solution: show tkinter askstring dialog num
times. You can break for
loop if user press Cancel
button. It's not exactly what you want, but it's very easy to implement:
from tkinter import *
import tkinter.simpledialog as simpledialog
def add_users():
n = simpledialog.askinteger('', 'How many users are you going to put in?', initialvalue=1, minvalue=1, maxvalue=10)
if not n: # 'Cancel'
return
for i in range(n):
user = simpledialog.askstring('', 'User #%s from #%s' % (i+1, n))
if user is None: # 'Cancel'
return
# Do something useful
print(user)
root = Tk()
Button(root, text='Add users', command=add_users).pack(padx=50, pady=50)
Button(root, text='Quit', command=root.destroy).pack(pady=30)
root.mainloop()
Second (if you want to put entry and all new names to window with quit
button):
from tkinter import *
import tkinter.simpledialog as simpledialog
class YourApp():
def __init__(self):
self.root = Tk()
Button(self.root, text='Quit', command=self.root.destroy).pack(pady=20)
self.ask_button = Button(self.root, text='Add users', command=self.add_users)
self.ask_button.pack(padx=50, pady=50)
self.root.mainloop()
def add_users(self):
self.users_count = 0
self.user_name = StringVar()
self.frame = Frame(self.root)
self.frame.pack()
self.users_count = simpledialog.askinteger('', 'How many users are you going to put in?', initialvalue=1, minvalue=1, maxvalue=10)
self.user_entry = Entry(self.frame, textvariable=self.user_name)
self.user_entry.pack(pady=10)
self.user_entry.bind('<Key-Return>', self.on_new_user)
self.user_entry.focus_set()
def on_new_user(self, event):
# your code
print(self.user_name.get())
Label(self.frame, text='User Inputted: %s' % self.user_name.get()).pack()
self.users_count -= 1
if not self.users_count:
self.user_entry.destroy()
self.user_name.set('')
YourApp()
There are three geometry managers in Tkinter: place (it's very similar to canvas in your case), grid and pack. Canvas usually used for drawing pictures or graphs.