Daily Archives: July 14, 2014

Tkinter – Redirecting stdout / stderr

Redirecting stdout seems to be a pretty common request on the wxPython users group, so I decided to see how easy it would be to do it with Tkinter. The typical use case for redirecting stdout or stderr is that you are calling some other process (like ping or tracert) and you want to catch what it’s doing to put it into your UI. Usually you can just use Python’s subprocess module and call its communicate() method to access the data. Then you can just print it to stdout and it will magically appear in your UI’s widget of choice.

Our finished user interface will look something like the following:


Let’s find out how to do this with Tkinter: Continue reading Tkinter – Redirecting stdout / stderr