[Tutor] Tkinter and after() method

[Phil]

On 27/1/23 20:17, Alan Gauld via Tutor wrote:
> If thats the case calling after inside a for loop is
> extremely bad practice and quite likely to cause your
> GUI to freeze which is a very bad user experience.

Thank you Alan for your reply and example code.

The GUI did freeze, however, at the time of posting my question I 
couldn't think of a better method. I posted a second message about half 
an hour latter after I discovered a syntax error which solved the 
recursion error (that was only test code and nothing to do with my 
project) but not the freezing GUI. The answer came to me at around 3:00 
AM and I have now removed the for-loop so the problem has been solved.

I must resist the urge to post a plea for help whenever a problem 
frustrates me.


>> To try to get some understanding of what's required I tried this:
>>
>> self.r = 31
>>
>> self.abc()
>> self.print_count()
>> self.after(1000, self.print_count()
>>
>> def abc(self):
>>       self.r += 1
>>       print(self.r)
>>
>> def print_count(self)
>>       self.abc()
>>       self.after(1000, self.print_count()
> That makes no sense whatsoever.

I can see why my test example code caused you to think that. As I said 
in my second posting after I removed "self.print_count()" and corrected 
self.after(1000, self.print_count()) to self.after(1000, 
self.print_count) the test worked.

Anyway, thank you again for taking the trouble to reply to my confusing 
question.

-- 

Regards,
Phil