hold "input" for only so long

[klintkrossa]

Hello,
I would like to run a python3 program at the end I want to ask to reboot or not. If I am not around I would like it to reboot.

Code: Select all

RB = input('Reboot (Y) or N')
RB = RB.upper()
RB = RB[0]
if RB == "N":
    exit()
    pass
else:
    system('sudo reboot')
    exit()
    pass

It stops at RB = input('-->').
is there some other command that will wait for an input for 30 sec?

[asandford]

BASIC has a command called INKEY$ which scans the keyboard rather than waiting for enter to be pressed. If python has (or you can find) an equivalent command, use it in a loop that is controlled by elapsed time. Something like:

Code: Select all

duration=time(now) + 30 seconds
Print 'Reboot (Y) or N'
repeat
reply=inkey$()
until (reply<>"" or time(now)>=duration)
if (reply<>"N" or reply<>"n") then reboot

That will scan for up to 30 seconds or until a key is pressed.

If any other key than N/n is pressed then it will reboot.

[ktb]

Maybe threading.Timer could be used.

[Burngate]

I'm not an expert pythonist but isn't there a way to import a time function, then set up something like

Code: Select all

Import time
Timenow = time
...
If time > Timenow + 30
       ....

This is obviously not going to work as-is, but you get the idea ...

[klintkrossa]

Threading worked.
thanks

Code: Select all

#!/usr/bin/python3

from os import system
from threading import Timer


def hello():
    print("hello, world")
    system('sud reboot')


t = Timer(30.0, hello)

try:
    t.start()
except:
    print('did not work')

RB = input('Reboot (Y) or N')
if RB == "":
    RB = 'Y'
RB = RB.upper()
RB = RB[0]
if RB == "N":
    t.cancel()
    exit()
    pass
else:
    t.cancel()
    system('sud reboot')
    exit()
    pass

yes so I could test the sud was meant to be, so I was not rebooting until I got it right.