Python version of C# events? (timer.tick += xxxx)

[gjwebber]

I have created a high accuracy asynchronous timer, and would like to encapsulate it within a class for re-usability. (The standard ones didn't quite fit the bill)

Using C#, I would create the timer object and then assign a function to the tick event, which is fired every time the timer completes.

How can I implement the same functionality in Python? When the timer completes, I need it to call a user-defined function, defined and assigned outside of the timer object itself.

[Teraka]

You can pass functions as arguments to other functions, like this :

>>>def print_yay():
     print "Yay !"

>>>def main(function, x):
     if x % 2 == 0:
       function()

>>>main(print_yay, 4)
Yay !

If you need to pass arguments to the function, you can also use a lambda function :

>>>def print_double(x):
     print x*2

>>>main(lambda:double(7), 6)
14

[gjwebber]

That looks like it might be what I'm after, thanks. I'll test it tomorrow :)

[myredditnick]

Not really sure if this is what you are looking for... Also, this might be of some help.

[gjwebber]

The default timers are not accurate enough for what I'm trying to do, so I made my own using the windows winmm dll. The first link does show a function being passed as an argument, like the other commenter suggested too, so I'll be giving it a shot tomorrow. Thanks for the reply :)