Real-time Update

[ReTrY]

I'm writing a program with Tkinter GUI, When the program is running it
need to be updated every five seconds (data comes from internet). How
should I do that ? How to make a function in main loop ?

 

[Aahz]

I'm writing a program with Tkinter GUI, When the program is running it
need to be updated every five seconds (data comes from internet). How
should I do that ? How to make a function in main loop ?

See the Tkinter example from my threads tutorial on my website.

 

[Hendrik van Rooyen]

I'm writing a program with Tkinter GUI, When the program is running it
need to be updated every five seconds (data comes from internet). How
should I do that ? How to make a function in main loop ?

Short answer:

use the after method to set up a periodic scan of a queue.

In another thread, look for the new stuff, and put it on the queue when found.

there is a recipe for this sort of thing, but I keep losing links.

- Hendrik

 

[kyosohma]

I'm writing a program with Tkinter GUI, When the program is running it
need to be updated every five seconds (data comes from internet). How
should I do that ? How to make a function in main loop ?

I'm pretty sure the book "Programming Python 3rd Ed." by Lutz covers
this stuff in detail. I think it mentions using threads for this sort
of thing. The wxPython wiki has a good example that I think you could
adapt for Tkinter. Just use the threading code and wrap it in your
Tkinter code and I think you'll be good to go. Here's the link:
http://www.wxpython.org/maillist.php

Good luck,

Mike

 

[kyosohma]

See the Tkinter example from my threads tutorial on my website.

There's also a good example on the wxPython wiki dealing with threads
that you should be able to adapt to Tkinter.

http://wiki.wxpython.org/LongRunningTasks

Mike

 

[Alex Martelli]

Short answer:

use the after method to set up a periodic scan of a queue.

In another thread, look for the new stuff, and put it on the queue when found.

there is a recipe for this sort of thing, but I keep losing links.

<http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82965> .


Alex

 

[Hendrik van Rooyen]

<http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82965> .

thanks - but its probably no use - I predict I will lose this too...

: - )

- Hendrik