Asynchronous programming

Thu Aug 25 18:16:52 EDT 2016

On 8/11/2016 11:55 PM, Lawrence D’Oliveiro wrote:
> On Friday, August 12, 2016 at 2:25:05 AM UTC+12, Terry Reedy wrote:
>>> When I read something like "Python finally acquired an event loop in
>> 3.4" I wonder where people have been. The tk event loop has been in
>> Python perhaps for 2 decades...
>> As was pointed out to me just a few days ago, that’s Tcl, not Python.

Tk is part of Tcl/Tk. Tk's mainloop() calls level tcl loop functions.
The tkinter and _tkinter modules are Python stdlib modules. For 
timer-based callbacks, there is little difference between using tkinter 
and async modules. The fact that async uses a Python-coded event loop 
while tkinter uses a Tcl-coded loop is nearly invisible. Several other 
stdlib modules wrap 'foreign' code too.
-- 
Terry Jan Reedy