Question

Here’s my code, it’s just supposed to basically change end to start + 25 minutes.
I’m just wondering if there is a way to update datetime.datetime.now() to be the current time.
As it stands, it just stays at whatever it was when I first used the module.
So the if statement will never be true.

import datetime
start = datetime.datetime.now()
end = start + datetime.timedelta(minutes = 25)
if start == end:
    end = end + datetime.timedelta(minutes = 25)

Answer 1

As CharlesB has suggested, the start variable is not updated. You need to take the now value at the time you want to perform the test.

Rewrite the line:

if start == end:

To

if datetime.datetime.now() > end:

EDIT
After Tommo’s comment, I think another solution may be easier.

import time
while True:
    putMessageToScreen()
    time.sleep(25*60)