Python GUI Tk : ListBox

 Insert image to a List box

import os
import Tkinter

root = Tkinter.Tk()
L = Tkinter.Listbox(selectmode=Tkinter.SINGLE)
gifsdict = {}

dirpath = '.\'
for gifname in os.listdir(dirpath):
    if not gifname[0].isdigit(): 
       continue
    gifpath = os.path.join(dirpath, gifname)
    gif = Tkinter.PhotoImage(file=gifpath)
    gifsdict[gifname] = gif
    L.insert(Tkinter.END, gifname)

L.pack()
img = Tkinter.Label()
img.pack()
def list_entry_clicked(*ignore):
    imgname = L.get(L.curselection()[0])
img.config(image=gifsdict[imgname])
L.bind('<ButtonRelease-1>', list_entry_clicked)
root.mainloop()


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From Kevin Routley (kbroutley at gmail.com)

I have tested with Python 2.7 and 3.5 using Windows 7. There were two bugs in the sample code as presented:
1. The dirpath = '.\' would not work. It needs to be './' or '.\\'
2. The line which starts "img.config" (third from the bottom) needs a leading tab.

The description of the sample is misleading. It reads "Insert image to a list box": this implies images are being put in the list box. Tkinter does not support using images inside a list box. The description might be changed to: "View image by selecting name from list." [I was trying the sample because I was seeking to use images in a list box. Research indicates a different widget set will be necessary, e.g. tix or BWidgets.]


import os

try:
  import Tkinter
except ImportError:
  import tkinter as Tkinter

root = Tkinter.Tk()
L = Tkinter.Listbox(selectmode=Tkinter.SINGLE)
gifsdict = {}

dirpath = '.\\'
for gifname in os.listdir(dirpath):
    if not gifname[0].isdigit(): 
       continue
    gifpath = os.path.join(dirpath, gifname)
    gif = Tkinter.PhotoImage(file=gifpath)
    gifsdict[gifname] = gif
    L.insert(Tkinter.END, gifname)

L.pack()
img = Tkinter.Label()
img.pack()

def list_entry_clicked(*ignore):
    imgname = L.get(L.curselection()[0])
    img.config(image=gifsdict[imgname])

L.bind('<ButtonRelease-1>', list_entry_clicked)

root.mainloop()

ListBox with scrollBar

import Tkinter

s = Tkinter.Scrollbar()
L = Tkinter.Listbox()

s.pack(side=Tkinter.RIGHT, fill=Tkinter.Y)
L.pack(side=Tkinter.LEFT, fill=Tkinter.Y)

s.config(command=L.yview)
L.config(yscrollcommand=s.set)

for i in range(30): 
   L.insert(Tkinter.END, str(i)*3)

Tkinter.mainloop()

Get selected value from Listbox

import Tkinter

F1 = Tkinter.Frame()
s = Tkinter.Scrollbar(F1)
L = Tkinter.Listbox(F1)

s.pack(side=Tkinter.RIGHT, fill=Tkinter.Y)
L.pack(side=Tkinter.LEFT, fill=Tkinter.Y)

s['command'] = L.yview
L['yscrollcommand'] = s.set

for i in range(30): 
   L.insert(Tkinter.END, str(i))

F1.pack(side=Tkinter.TOP)

F2 = Tkinter.Frame()
lab = Tkinter.Label(F2)

def poll():
    lab.after(200, poll)
    sel = L.curselection()
    lab.config(text=str(sel))

lab.pack()
F2.pack(side=Tkinter.TOP)

poll()
Tkinter.mainloop()

List Box: insert items

from Tkinter import *

root = Tk()
root.title('Listbox')
list = Listbox(root, width=15)
list.pack()

for item in range(10):
    list.insert(END, item)

root.mainloop()

List box demo

from Tkinter import *

class AllTkinterWidgets:
    def __init__(self, master):
        frame = Frame(master, width=500, height=400, bd=1)
        frame.pack()


        iframe3 = Frame(frame, bd=2, relief=GROOVE)
        listbox = Listbox(iframe3, height=4)
        for line in ['Listbox Entry One','Entry Two','Entry Three','Entry Four']:
            listbox.insert(END, line)
        listbox.pack(fill=X, padx=5)
        iframe3.pack(expand=1, fill=X, pady=10, padx=5)
        
        iframe4 = Frame(frame, bd=2, relief=SUNKEN)
        text=Text(iframe4, height=10, width =65)
        fd = open('test.py')
        lines = fd.read()
        fd.close()
        text.insert(END, lines)
        text.pack(side=LEFT, fill=X, padx=5)
        sb = Scrollbar(iframe4, orient=VERTICAL, command=text.yview)
        sb.pack(side=RIGHT, fill=Y)
  text.configure(yscrollcommand=sb.set)


    
root = Tk()
all = AllTkinterWidgets(root)
root.title('Tkinter Widgets')
root.mainloop()

ScrollBar for List box

from Tkinter import *

root = Tk()
root.title('Scrollbar')

list = Listbox(root, height=6, width=15)
scroll = Scrollbar(root, command=list.yview)

list.configure(yscrollcommand=scroll.set)
list.pack(side=LEFT)
scroll.pack(side=RIGHT, fill=Y)

for item in range(30):
    list.insert(END, item)
root.mainloop()

Scrolled List

from Tkinter import * 

class ScrolledList(Frame):
    def __init__(self, options, parent=None):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)                  
        self.makeWidgets(options)
        
    def handleList(self, event):
        index = self.listbox.curselection()            
        label = self.listbox.get(index)                
        self.runCommand(label)                         

    def makeWidgets(self, options):                    
        sbar = Scrollbar(self)
        list = Listbox(self, relief=SUNKEN)
        sbar.config(command=list.yview)                
        list.config(yscrollcommand=sbar.set)              
        sbar.pack(side=RIGHT, fill=Y)                     
        list.pack(side=LEFT, expand=YES, fill=BOTH)    
        pos = 0
        for label in options:                          
            list.insert(pos, label)                    
            pos = pos + 1

        list.bind('<Double-1>', self.handleList)       
        self.listbox = list
    def runCommand(self, selection):                   
        print 'You selected:', selection

if __name__ == '__main__':
    options = map((lambda x: 'Lumberjack-' + str(x)), range(20))
    ScrolledList(options).mainloop()