Keeping a Tkinter GUI alive during a long running process
Grant Edwards
invalid at invalid.invalid
Sat Dec 29 13:47:39 EST 2012
On 2012-12-21, Kevin Walzer <kw at codebykevin.com> wrote:
> I maintain a Tkinter application that's a front-end to to a package
> manger, and I have never been able to find a way to keep the app from
> locking up at some point during the piping in of the package manager's
> build output into a text widget. At some point the buffer is overwhelmed
> and the app simply can't respond anymore, or writes data to the text
> widget after locking up for a period.
>
> I've long used the typical Tkinter design pattern of opening a pipe to
> the external command, and letting it do its thing. However, after a
> time, this locks up the app. If I try to throttle the buffer with some
> combination of "update" or "after" or "update_idletasks," that keeps the
> data flowing, but it comes in too slowly and keeps flowing in long after
> the external process has terminated.
Isn't there a way in Tkinter to have a file descriptor produce an
event whenever it becomes readble?
http://stackoverflow.com/questions/3348757/how-to-make-tkinter-repond-events-while-waiting-socket-data
--
Grant Edwards grant.b.edwards Yow! ... he dominates the
at DECADENT SUBWAY SCENE.
gmail.com
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