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Python 3 Tkinter Script to Load & Display Images in Window From FileDialog Widget GUI Desktop App
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Jun 3, 2025
Get the full source code of application here: https://codingshiksha.com/python/python-3-tkinter-script-to-load-display-images-in-window-from-filedialog-widget-gui-desktop-app/
View Video Transcript
0:00
uh hello guys welcome to this video so
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in this video I will show you a very
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important concept inside Twinter how to
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take uh the user input and display the
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images right in the window itself so we
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have the simple Python twin desktop
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application where we will allow the user
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to simply select any sort of image from
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their computer we have this button right
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here open image as soon as you click
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this button this file picker will window
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will open here you can actually select
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uh any image file that you want to
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select as soon as you select the image
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file the image will be displayed right
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in the screen itself so I will show you
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how to do this inside uh tweak framework
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inside Python it's a very important task
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because you want to accept user input so
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whenever users select any file it will
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display right in the window itself so
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it's a image previewer image loader kind
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of an
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application i will show you all the
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source code is given in the description
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of the video so first of all you need to
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import the tweer package by simply
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writing from twe import
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everything import star and then we'll be
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using this pillow
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library inside this library we have two
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methods imagek and the image class so
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just install this library by executing
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this command pip install pillow this is
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just go to the terminal and install this
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command install this library after that
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you
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simply say from trick enter we need to
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import the file dialogue
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class and then we
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simply define the window like this root
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tk and then we set the properties about
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the window which is the
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title and then we set
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the x coordinate and the y coord sorry
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width and the height which is 500 by
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500 and then we set root resizable you
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can set the width to be true you can
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resize the
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window if you don't want to allow the
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user to resize it you can put false here
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and then we can simply add a button
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inside the window which lets the user
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opens the image picker window and we can
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define this on click listener so when
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whenever you hit this button we are
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attaching this command here which is a
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function custom function which will
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execute open image and then we'll be
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adding it in a grid-like
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structure and then we start this
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application so now we just need to
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define this function open image so as
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soon as you hit this
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button so here we just need to open the
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file picker window inside this function
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so we
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simply again define another function
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here which will be open file name
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so this will
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actually open this file picker window by
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using this file dialog class it contains
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this function which is ask open file
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name we just give it a title to this
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window which will
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be so here we will be getting the file
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name and then we returning this file
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name from this function so once we get
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the file
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name then we can display this image by
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the image class of pillow we open this
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image then we resize this
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image to a fixed size
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so essentially we are resizing the image
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so that we can display properly inside
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the window
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then we use this image TK
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class contains this photo image and we
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embed this image inside this image
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widget then we display this inside the
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panel
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we add this in the grid like
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structure so this completes the
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application so if I execute this
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now click this select any image
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so in this way you can actually build
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this very simple application where we
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allow the user to simply select any
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image from their local file system and
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display this right in the window itself
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so thank you very much for watching this
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video all the source code is given in
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the description of the video and also
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check out my website freemediatools.com
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uh which
5:54
contains thousands of tools