How to add a scrollbar to window made with tkinter - python

A simple quiz game
I got this code and I need scrollbars, I tried to search how to add it on stackoverflow (ScrolledWindow with tix...) but I still can't get something that works properly. Could someone help me?
from tkinter import *
from random import randint
root = Tk()
root.title("Quiz")
root.geometry("400x300")
class Window:
def __init__(self, question, answer):
self.text = [question, answer]
self.createLabel()
# self.createText()
self.createEntry()
self.createButton()
def retrieve_input(self):
# inputValue = self.textBox.get("1.0", "end-1c")
# print(inputValue)
if self.mystring.get() == self.text[1]:
print("Esatto. è " + self.text[1])
self.left['text'] = "Esatto"
def createLabel(self):
self.labelframe = LabelFrame(root, text="Domanda:")
self.labelframe.pack(fill="both", expand="yes")
self.left = Label(self.labelframe, text=self.text[0])
self.left.pack()
def createText(self):
self.textBox = Text(height=1)
self.textBox.pack()
def createEntry(self):
self.mystring = StringVar()
self.myentry = Entry(root, textvariable=self.mystring).pack()
def createButton(self):
self.but = Button(text="Click", command=self.retrieve_input)
self.but.pack()
for i in range(10):
one = randint(1, 10)
two = randint(1, 10)
Window("Quanto fa " + str(one) + "+" + str(two) + "?", str(one + two))
root.mainloop()
output

With ScrolledFrame it can look like this
I renamed Window into Question because it makes more sense
I use self.question and self.answer instead of self.text = [question, answer] to make it more readable.
I put classes and functions before root = tk.Tk() to make it more readable.
I use import tkinter as tk instead of from tkinter import * to make it more readable.
Question gets inner frame from ScrolledFrame and use as parent for LabelFrame. Other widgets use labelframe as parent.
BTW: you had entry = Entry(..).pack() which assign None to entry because pack()/grid()/place() returns None. I put pack() in next line and now I can get text directly from Entry (without StringVar)
Code
import tkinter as tk
from random import randint
# --- classes ---
class ScrolledFrame(tk.Frame):
def __init__(self, parent, vertical=True, horizontal=False):
super().__init__(parent)
# canvas for inner frame
self._canvas = tk.Canvas(self)
self._canvas.grid(row=0, column=0, sticky='news') # changed
# create right scrollbar and connect to canvas Y
self._vertical_bar = tk.Scrollbar(self, orient='vertical', command=self._canvas.yview)
if vertical:
self._vertical_bar.grid(row=0, column=1, sticky='ns')
self._canvas.configure(yscrollcommand=self._vertical_bar.set)
# create bottom scrollbar and connect to canvas X
self._horizontal_bar = tk.Scrollbar(self, orient='horizontal', command=self._canvas.xview)
if horizontal:
self._horizontal_bar.grid(row=1, column=0, sticky='we')
self._canvas.configure(xscrollcommand=self._horizontal_bar.set)
# inner frame for widgets
self.inner = tk.Frame(self._canvas, bg='red')
self._window = self._canvas.create_window((0, 0), window=self.inner, anchor='nw')
# autoresize inner frame
self.columnconfigure(0, weight=1) # changed
self.rowconfigure(0, weight=1) # changed
# resize when configure changed
self.inner.bind('<Configure>', self.resize)
self._canvas.bind('<Configure>', self.frame_width)
def frame_width(self, event):
# resize inner frame to canvas size
canvas_width = event.width
self._canvas.itemconfig(self._window, width = canvas_width)
def resize(self, event=None):
self._canvas.configure(scrollregion=self._canvas.bbox('all'))
class Question:
def __init__(self, parent, question, answer):
self.parent = parent
self.question = question
self.answer = answer
self.create_widgets()
def get_input(self):
value = self.entry.get()
print('value:', value)
if value == self.answer:
print("Esatto. è " + self.answer)
self.label['text'] = "Esatto"
def create_widgets(self):
self.labelframe = tk.LabelFrame(self.parent, text="Domanda:")
self.labelframe.pack(fill="both", expand=True)
self.label = tk.Label(self.labelframe, text=self.question)
self.label.pack(expand=True, fill='both')
self.entry = tk.Entry(self.labelframe)
self.entry.pack()
self.button = tk.Button(self.labelframe, text="Click", command=self.get_input)
self.button.pack()
# --- main ---
root = tk.Tk()
root.title("Quiz")
root.geometry("400x300")
window = ScrolledFrame(root)
window.pack(expand=True, fill='both')
for i in range(10):
one = randint(1, 10)
two = randint(1, 10)
Question(window.inner, "Quanto fa {} + {} ?".format(one, two), str(one + two))
root.mainloop()

Related

How to only allow the top frame verticaly stretch

I try to adopt Tkinter, treeview doesn't resize with window, with verry little modification.
import tkinter as tk
from tkinter import ttk
import random
class App():
def __init__(self):
self.root = tk.Tk()
self.frame = tk.Frame(self.root)
self.frame.pack(expand=True, fill=tk.BOTH)
self.tree = ttk.Treeview(self.frame, show="headings")
self.tree.pack(expand=True, )
self.frameBT = tk.LabelFrame(self.root,text='Buttons')
self.frameBT.pack(expand=True, fill=tk.X)
self.button = ttk.Button(self.frameBT, text="Fill", command=self.fill)
self.button.pack(side=tk.BOTTOM,expand=True)
self.fill()
self.root.mainloop()
def fill(self):
if self.has_data():
self.tree.delete(*self.tree.get_children())
i = random.randrange(1,10)
self.tree["columns"]=tuple([str(i) for i in range(i)])
for col in self.tree['columns']:
self.tree.heading(col, text="Column {}".format(col), anchor=tk.CENTER)
self.tree.column(col, anchor=tk.CENTER)
j = random.randrange(10)
for j in range(j):
self.tree.insert("", "end", values = tuple([k for k in range(i)]))
def has_data(self):
has_tree = self.tree.get_children()
return True if has_tree else False
App()
Currently, when I stretch the window verticaly, I got
My question is, how to keep that 'Button' at the verry bottom, while the bottom of treeview frame move up and down when I resize the main window.
You need to:
make self.tree to fill all available space by setting fill=tk.BOTH:
self.tree.pack(expand=True, fill=tk.BOTH) # added fill=tk.BOTH
disable expand of self.frameBT by removing expand=True:
self.frameBT.pack(fill=tk.X) # removed expand=True

Modules and classes in Python for a desktop application

This is to be a desktop application for opening multiple small databases and running queries on them. So far I've written some code for opening forms as necessary. Is this a good way to do it? Also - the code shown opens two copies of each form - what am I doing wrong? It's my first attempt at Python and I'm a rudimentary programmer so simple answers would be of most help please. TIA (Python 3.9.6)
link_1.py
from tkinter import Tk
import link_2
root = Tk()
class ClassLink_1:
#if another function in the class is called, the __init__ function is run at start up
def __init__(self):
print("in link_1 __init__ instruction")
#the call_function function can be called at start up, or not, and will act accordingly
def call_function(self):
print("in call_function")
#the line below is run at start up whether or not another function in the class is called
print("in link_1")
root.withdraw() #hides the blank form at start up
#if __name__ == "__main__":
#the line below shows the link_2 form, whether or not the if __name__==__main__ condition is used as its condition
link_2.ClassLink_2(root).__init__(root)
#link_3.ClassLink_3(root).__init__(root)
#the line below runs call_function on start up to print text
ClassLink_1().call_function()
root.mainloop()
link_2.py
from tkinter import Tk, Button
from tkinter import * #for Toplevel
import link_3
root = Tk()
class ClassLink_2:
def __init__(self, master):
self.openNewWindow()
def openNewWindow(self):
newWindow = Toplevel(root) #creates a top level widget with the parent root (first parameter)
newWindow.title("Title opened from link_1")
newWindow.geometry("500x500")
label = Label(newWindow, text ="Opened from link_1").grid(row=1, column=1)
self.add_button = Button(newWindow, text="in ClassLink_2", command= self.do_add)
self.add_button.grid(row=3, column=1)
def do_add(self):
print("button pressed")
link_3.ClassLink_3(root).__init__(root)
root.withdraw() #hides the blank form at start up
link_3.py
from tkinter import Tk, Button
from tkinter import * #for Toplevel
root = Tk()
class ClassLink_3:
def __init__(self, master):
self.openNewWindow()
def openNewWindow(self):
newWindow = Toplevel(root) #creates a top level widget with the parent root (first parameter)
newWindow.title("Title opened from link_2")
newWindow.geometry("500x500")
label = Label(newWindow, text ="Opened from link_2").grid(row=1, column=1)
self.add_button = Button(newWindow, text="in ClassLink_3", command= self.do_add)
self.add_button.grid(row=3, column=1)
def do_add(self):
print("button pressed")
# link_4.ClassLink_4(root).__init__(root) this file has not yet been made
root.withdraw() #hides the blank form at start up
This is a proposed solution, can be expanded as needed. Constructive suggestions for improvement of the structure or code would be appreciated. TIA. I've left in the details in case they are of use to anyone.
link_1
from tkinter import Tk
import link_2
root = Tk()
class ClassLink_1:
def __init__(self):
print("in link_1 __init__ instruction")
root.withdraw() #hides the blank form at start up
link_2.ClassLink_2(root).openNewWindow(0)
root.mainloop()
link_2
from tkinter import Tk, Button
from tkinter import *
import link_3
root = Tk()
class ClassLink_2:
root.withdraw() #hides the blank form at start up
class_var_1 = 0
inst_var_1 = 0
def __init__(self, incoming_inst_var_1):
pass
def openNewWindow(self, inst_var_1_to_open):
newWindow = Toplevel(root)
newWindow.title("Title opened from link_1")
newWindow.geometry("500x500")
label = Label(newWindow, text ="Opened from link_1").grid(row=1, column=1)
self.add_button = Button(newWindow, text="in ClassLink_2", command= self.do_add)
self.add_button.grid(row=3, column=1)
self.add_button = Button(newWindow, text="increment class_var_1", command= self.inc_class_var_1)
self.add_button.grid(row=5, column=1)
self.inst_var_1 = inst_var_1_to_open
def do_add(self):
print("button pressed")
link_3.ClassLink_3(root).openNewWindow(0)
def inc_class_var_1(self):
ClassLink_2.class_var_1 += 2
self.inst_var_1 += 1
print("self.class_var_1 = " + (str)(self.class_var_1))
print("self.inst_var_1 = " + (str)(self.inst_var_1))
link_3
from tkinter import Tk, Button
from tkinter import *
from tkinter.ttk import Combobox
import tkinter.scrolledtext as tkscrolled
# import link_4 <filename of next form>
root = Tk()
class ClassLink_3:
class_var_1 = 0
inst_var_1 = 0
# ------------------------------- START CLASS CONTROLS -----------------------------
root.withdraw()
def __init__(self, incoming_inst_var_1):
pass
def openNewWindow(self, inst_var_1_to_open):
new_window = Toplevel(root)
self.widget_factory(new_window)
self.inst_var_1 = inst_var_1_to_open
def do_add(self):
print("button pressed")
# link_4.ClassLink_4(root).openNewWindow(0) # <filename of next form>
# ---------------------------------- END CLASS CONTROLS -----------------------------
# -------------------------------------- START CALCS --------------------------------------
def inc_class_var_1(self):
ClassLink_3.class_var_1 += 2
self.inst_var_1 += 1
print("self.class_var_1 = " + (str)(self.class_var_1))
print("self.inst_var_1 = " + (str)(self.inst_var_1))
# ---------------------------------------- END CALCS --------------------------------------
# ---------------------------------------- START FACTORY SHOPS-----------------------------------------
def widget_factory(self, new_window):
self.shop_window(new_window)
self.shop_labels(new_window)
self.shop_buttons(new_window)
self.shop_menu(new_window)
self.shop_listbox(new_window)
self.shop_combobox(new_window)
self.shop_radiobuttons(new_window)
self.shop_checkbuttons(new_window)
self.shop_entries(new_window)
self.shop_canvas(new_window)
self.shop_scale(new_window)
self.shop_scrollbars(new_window)
self.shop_textbox(new_window)
self.shop_menu(new_window)
pass
# ------------------------
def shop_window(self, new_window):
new_window.title("Title opened from link_2")
new_window.geometry("800x900")
def shop_labels(self, new_window):
self.label_1 = Label(new_window, text ="Opened from link_2").grid(row=1, column=1)
def shop_buttons(self, new_window):
self.button_1 = Button(new_window, text="in ClassLink_3", command= self.do_add)
self.button_1.grid(row=3, column=1)
self.button_2 = Button(new_window, text="increment class_var_1", command= self.inc_class_var_1)
self.button_2.grid(row=5, column=1)
def shop_listbox(self, new_window):
data=("one", "two", "three", "four")
self.listbox_1 = Listbox(new_window, height=5, selectmode='multiple')
for num in data:
self.listbox_1.insert(END,num)
self.listbox_1.grid(row=7, column=1)
def shop_combobox(self, new_window):
data=("one", "two", "three", "four")
self.combobox_1 = Combobox(new_window, values=data)
self.combobox_1.grid(row=8, column=3)
def shop_radiobuttons(self, new_window):
var_1 = IntVar()
var_1.set(1)
self.rad_btn_1 = Radiobutton(new_window, text="male", variable=var_1, value=1)
self.rad_btn_2 = Radiobutton(new_window, text="female", variable=var_1, value=2)
self.rad_btn_1.grid(row=9, column=1)
self.rad_btn_2.grid(row=9, column=2)
def shop_checkbuttons(self, new_window):
var_1 = IntVar()
var_2 = IntVar()
self.checkbtn_1 = Checkbutton(new_window, text = "Cricket", variable = var_1)
self.checkbtn_2 = Checkbutton(new_window, text = "Tennis", variable = var_2)
self.checkbtn_1.grid(row=10, column=1)
self.checkbtn_2.grid(row=10, column=2)
def shop_entries(self, new_window):
self.entry_1 = Entry(new_window, width = 20)
self.entry_1.insert(0,'Username')
self.entry_1.grid(row= 11, column=2)
self.entry_2 = Entry(new_window, width = 15)
self.entry_2.insert(0,'password')
self.entry_2.grid(row= 12, column=2)
#might want to place on a frame, see example https://coderslegacy.com/python/list-of-tkinter-widgets/
def shop_canvas(self, new_window):
canvas = Canvas(new_window, bg= 'white', width = 260,height = 260) #this is the background for the figure
# left and top of figure is from [x from left, y from top] of canvas right and bottom of figure from [x from left, y from top] of canvas
coordinates = 20, 50, 210, 230
arc = canvas.create_arc(coordinates, start=0, extent=250, fill="blue") #start is from E, extent is in degrees CCW
arc = canvas.create_arc(coordinates, start=250, extent=50, fill="red")
arc = canvas.create_arc(coordinates, start=300, extent=60, fill="yellow")
canvas.grid(row=2, column=1)
def shop_scale(self, new_window):
self.scale_1 = Scale(new_window, from_=0, to=10, orient=VERTICAL)
self.scale_1.grid(row=15, column=2)
self.scale_2 = Scale(new_window, from_=0, to=10, orient = HORIZONTAL)
self.scale_2.grid(row=15, column=3)
def shop_scrollbars(self, new_window):
self.scroll_vert = Scrollbar(new_window)
self.scroll_vert.grid(row=19, column=3)
self.listbox_3 = Listbox(new_window, yscrollcommand = self.scroll_vert.set )
for line in range(1, 100):
self.listbox_3.insert(END, "Number " + str(line))
self.listbox_3.grid(row=19 , column=2)
self.scroll_vert.config(command = self.listbox_3.yview)
def shop_textbox(self, new_window):
#make a frame with parent new_window
self.frame_textbox_1 = Frame(new_window)
self.frame_textbox_1.grid(row=1, column=5)
#make the textbox with parent frame
self.textbox_1 = Text(self.frame_textbox_1)
self.textbox_1.config(wrap=NONE, width=15, height=8) #width, height are characters x rows permitted wrap values should be WORD CHAR, or NONE
#make the X scrollbar with parent frame
self.scroll_text_horiz = Scrollbar(self.frame_textbox_1, orient="horizontal")
self.scroll_text_horiz.config(command = self.textbox_1.xview)
#make the Y scrollbar with parent frame
self.scroll_text_vert = Scrollbar(self.frame_textbox_1, orient="vertical")
self.scroll_text_vert.config(command = self.textbox_1.yview)
#pack the scrollbars before the texbox to allow them to fill the frame width and height
self.scroll_text_horiz.pack(side=BOTTOM, fill=X)
self.scroll_text_vert.pack(side=RIGHT, fill=Y)
self.textbox_1.pack(fill="y")
#connect the scrollbars to the textbox
self.textbox_1["xscrollcommand"] = self.scroll_text_horiz.set
self.textbox_1["yscrollcommand"] = self.scroll_text_vert.set
message = "the quick brown fox"
self.textbox_1.insert(1.1, message)
# ----------------------------------------------
def shop_menu(self, new_window):
print("in shop menu1")
menubar = Menu(new_window)
print("in shop_menu2")
file = Menu(menubar, tearoff=0)
file.add_command(label="New")
file.add_command(label="Open")
file.add_command(label="Save")
file.add_command(label="Save as...")
file.add_command(label="Close")
file.add_separator()
file.add_command(label="Exit", command=new_window.quit)
menubar.add_cascade(label="File", menu=file)
edit = Menu(menubar, tearoff=0)
edit.add_command(label="Undo")
edit.add_separator()
edit.add_command(label="Cut")
edit.add_command(label="Copy")
edit.add_command(label="Paste")
edit.add_command(label="Delete")
edit.add_command(label="Select All")
menubar.add_cascade(label="Edit", menu=edit)
help = Menu(menubar, tearoff=0)
help.add_command(label="About")
menubar.add_cascade(label="Help", menu=help)
new_window.config(menu=menubar)
print("in shop menu3")
# --------------------------------------- END FACTORY SHOPS---------------------------------------

clearing multiple labels values

I am losing my peanuts here. I am trying to clear two label values but i get an error
AttributeError: 'Label' object has no attribute 'delete'
basically if i were to click the calculate subtotal button then click the divide total button. I get my intended values. Now if I were to click on the clear values button i get an error. Literally shaking my head as I type this. Anyone care to explain why this is the case?
try:
import Tkinter as tk
except:
import tkinter as tk
class GetInterfaceValues():
def __init__(self):
self.root = tk.Tk()
self.totalValue = tk.StringVar()
self.root.geometry('500x200')
self.calculateButton = tk.Button(self.root,
text='Calculate Subtotal',
command=self.getSubtotals)
self.divideTotalButton = tk.Button(self.root,
text='Divide total',
command=self.divide)
self.textInputBox = tk.Text(self.root, relief=tk.RIDGE, height=1, width = 6, borderwidth=2)
self.firstLabel = tk.Label(self.root, text="This is the subtotal:")
self.secondLabel = tk.Label(self.root, text="This is the Divide Total:")
self.clearTotalButton = tk.Button(self.root, text='clear the values',command = self.clear)
self.firstLabel.pack(side="bottom")
self.secondLabel.pack(side="bottom")
self.textInputBox.pack()
self.calculateButton.pack()
self.divideTotalButton.pack()
self.clearTotalButton.pack()
self.root.mainloop()
def getTextInput(self):
result = self.textInputBox.get("1.0", "end")
return result
def getSubtotals(self):
userValue = int(self.getTextInput())
self.firstLabel["text"] = self.firstLabel["text"] + str(userValue * 5)
def divide(self):
userValue = int(self.getTextInput())
self.secondLabel["text"] = self.secondLabel["text"] + str(userValue / 10)
def clear(self):
self.firstLabel["text"] = self.firstLabel.delete("1.0","end")
app = GetInterfaceValues()
try:
import Tkinter as tk
except:
import tkinter as tk
class GetInterfaceValues():
def __init__(self):
self.root = tk.Tk()
self.totalValue = tk.StringVar()
self.root.geometry('500x200')
self.calculateButton = tk.Button(self.root,
text='Calculate Subtotal',
command=self.getSubtotals)
self.divideTotalButton = tk.Button(self.root,
text='Divide total',
command=self.divide)
self.textInputBox = tk.Text(self.root, relief=tk.RIDGE, height=1, width = 6, borderwidth=2)
self.firstLabelDefault = "This is the subtotal:"
self.secondLabelDefault = "This is the Divide Total:"
self.firstLabel = tk.Label(self.root, text=self.firstLabelDefault)
self.secondLabel = tk.Label(self.root, text=self.secondLabelDefault)
self.clearTotalButton = tk.Button(self.root, text='clear the values',command = self.clear)
self.firstLabel.pack(side="bottom")
self.secondLabel.pack(side="bottom")
self.textInputBox.pack()
self.calculateButton.pack()
self.divideTotalButton.pack()
self.clearTotalButton.pack()
self.root.mainloop()
def getTextInput(self):
result = self.textInputBox.get("1.0", "end")
return result
def getSubtotals(self):
userValue = int(self.getTextInput())
self.firstLabel["text"] = self.firstLabel["text"] + str(userValue * 5)
def divide(self):
userValue = int(self.getTextInput())
self.secondLabel["text"] = self.secondLabel["text"] + str(userValue / 10)
def clear(self):
self.firstLabel["text"] = self.firstLabelDefault
self.secondLabel["text"] = self.secondLabelDefault
self.textInputBox.delete("1.0", "end")
app = GetInterfaceValues()
You may have confused the methods of tkinter.Text and tkinter.Label. The method you called was tkinter.label.delete, which is not defined (does not exist), however it does exist for the tkinter.Text. Therefore, the only way to 'reset' would be to change the text attribute of the tkinter.Labels back to a 'default' string. It would perhaps be more appropriate to use another widget instead.

Tkinter canvas not scrolling

Tkinter experts, I'm having trouble getting a Canvas to scroll. This is my second GUI, and I've done something similar before, so I don't know what I'm doing wrong. I'd appreciate any help you can offer.
Here's a minimal version of what I'm trying to do. I'm using python 3.4.3 on Windows 10.
import tkinter as tk
import tkinter.font as tk_font
import tkinter.ttk as ttk
import random
def get_string_var(parent, value=''):
var = tk.StringVar(parent)
var.set(value)
return var
class SummaryFrame(ttk.Frame):
def __init__(self, parent, **kwargs):
ttk.Frame.__init__(self, parent, **kwargs)
var_names = ['label_'+str(num) for num in range(1, 20)]
self.vars = {}
for name in var_names:
self.vars[name] = get_string_var(self)
self._add_summary_labels(self, self.vars, 1)
#staticmethod
def _add_summary_labels(frame, vars, start_row):
current_row = start_row
for name in vars:
tk.Label(frame, text=name, anchor=tk.N+tk.W).grid(row=current_row, column=0, sticky=tk.N+tk.S+tk.W+tk.E)
text_label = tk.Label(frame, wraplength=200, textvariable=vars[name], anchor=tk.N+tk.W, justify=tk.LEFT)
text_label.grid(row=current_row, column=1, sticky=tk.W)
current_row += 1
def set_summary_fields(self, info):
for name in info:
if name in self.vars:
self.vars[name].set(info[name])
class OuterFrame(ttk.Frame):
def __init__(self, parent, **kwargs):
ttk.Frame.__init__(self, parent, **kwargs)
self.canvas = tk.Canvas(self)
scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL, command=self.canvas.yview)
self.canvas.configure(yscrollcommand=scrollbar.set)
self.summary = SummaryFrame(self.canvas)
self.summary.pack(fill=tk.BOTH, expand=1)
self.canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)
scrollbar.pack(side=tk.LEFT, fill=tk.Y, expand=1)
label_text = {}
for i in range(1, 20):
label_text['label_'+str(i)] = "information " * random.randint(1, 20)
self.set_fields(label_text)
def set_fields(self, info):
self.summary.set_summary_fields(info)
self.canvas.configure(scrollregion=(1, 1, self.summary.winfo_width(), self.summary.winfo_height()))
if __name__ == "__main__":
root = tk.Tk()
frame = OuterFrame(root)
frame.pack(fill=tk.BOTH, expand=1)
root.mainloop()
The scrollbar should change when the contents of the inner SummaryFrame expands, but doesn't. It remains grayed out and inoperable. What am I doing wrong?
Short answer: you are configuring the scrollregion to be one pixel by one pixel.
You are configuring the scrollregion based on the width and height of the self.summary, but you are doing this before the window has a chance to be mapped to the screen. The width and height, therefore, are both one.
You need to wait for the window to be drawn before computing the width and height of the window.

Python widgets and button

I'm trying to add a "Done" button to my program that will print the content of both Entry widgets to a new box. I can get the button to appear, but I can't get the information to show up in a new box. What am I doing wrong?
from Tkinter import *
class Application(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.grid()
self._name = StringVar()
self._name.set("Enter name here")
self._age = IntVar()
self._age.set("Enter age here")
top = self.winfo_toplevel() # find top-level window
top.title("Entry Example")
self._createWidgets()
self._button = Button(self,
text = "Done")
self._button.grid(row = 1, column = 0, columnspan = 2)
def _createWidgets(self):
textEntry = Entry(self, takefocus=1,
textvariable = self._name, width = 40)
textEntry.grid(row=0, sticky=E+W)
ageEntry = Entry(self, takefocus=1,
textvariable = self._age, width = 20)
ageEntry.grid(row=1, sticky=W)
def _widget(self):
tkMessageBox.showinfo
# end class Application
def main():
Application().mainloop()
You need to assign an action to your button using command: option.
To get what is written in Entry you need to use get() method.
showinfo you need two arguments, one is the title, the other one is what is going to be shown.
Also you need to import tkMessageBox.
Here is a working example.
import Tkinter as tk
import tkMessageBox
class Example(tk.Frame):
def __init__(self,root):
tk.Frame.__init__(self, root)
self.txt = tk.Entry(root)
self.age = tk.Entry(root)
self.btn = tk.Button(root, text="Done", command=self.message)
self.txt.pack()
self.age.pack()
self.btn.pack()
def message(self):
ent1 = self.txt.get()
ent2 = self.age.get()
tkMessageBox.showinfo("Title","Name: %s \nAge: %s" %(ent1,ent2))
if __name__=="__main__":
root = tk.Tk()
root.title("Example")
example = Example(root)
example.mainloop()

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