Python-从URL在Tkinter中打开图像-不使用PIL

Question

I need to display images within a tk window, but can only use these functions to do it;

from urllib.request import urlopen
from re import findall, MULTILINE, DOTALL
from webbrowser import open as webopen
from os import getcwd
from os.path import normpath
from tkinter import *
from sqlite3 import *
from datetime import datetime

I was thinking that there might be some way I can do this just through tkinter's standard functions, but have yet to find any possible way.

This or I could try and find a way to convert the image to a GIF. Note that no images can be stored on the system.

The images I need to display are either JPGs or PNGs, such as this one.

Any help is appreciated.

Answer 1

As is stated here :

The PhotoImage class can read GIF and PGM/PPM images from files:

 photo = PhotoImage(file="image.gif") photo = PhotoImage(file="lenna.pgm") 

The PhotoImage can also read base64-encoded GIF files from strings. You can use this to embed images in Python source code (use functions in the base64 module to convert binary data to base64-encoded strings):

And as was pointed out in the comments below and here you can also use PNG images with PhotoImage .

Images in tkinter have to be passed in as PhotoImage objects to be drawn and in order to get a PhotoImage object, the image has to be one of the above formats.

So you will need to find a way to get the images in one of those formats using the modules you have available.

Answer 2

The Tcl/Tk module Img allow you to load JPEG and PNG (among other formats) with PhotoImage. This module is included in some packaged distributions of Tcl/Tk. So it is worth checking whether it is installed on the computer you are using. To do so, try to load it with:

widget.tk.eval('package require Img')

widget can be any Tkinter widget.

If it returns a version number, then it is installed and loaded so you can use it and open JPEG images simply doing

PhotoImage(file='/my/image.jpg')