I am using Windows 7 (32bit).
As a programming exercise, I have to make a reminder using tkinter.
To be more specified :
My main project is to help people who suffer from alzheimer disease.
So, one of my targets is to make a reminder for helping them do the necessary activities/things.
For example,
At 14:00 o'clock, create a messagebox (and if it possible play a sound)..saying "It's time to eat".
Then at 18:00 o'clock, create a messagebox (and if it possible play a sound)..saying "It's time for a walk".
etc...
How I can do this?
Is there a special module or some tools in python(or in tkinter) that can help me?
Before, coding in Visual Basic as remember I used something like "Timer"..But I can't remember more about this.. :P
Thanks in advance.
At first thought you can have a tk config dialog, where you can add new rules, edit messagebox strings etc. Then you will have in which you will use the time module. From there you can access the system time. 
If you want to display windows messageboxes, you can find them in the ctypes libary.
Reminder Using Tkinter