Hello,
Python 2.7 & Windows and also Linux are the platforms being used. Running
the code from the command line / terminal as python except.py. Note that
it does work properly in Linux. So I'm guessing I need to test for a
different exception along with the KeyboardInterrupt??
So, the code below is my example.
When I run it, everything is fine until I attempt to test the
KeyboardInterrupt exception.
When I do this, the traceback is as follows:
Traceback (most recent call last):
File "except.py", line 71, in <module>
start_menu()
What I was expecting was the message in the exception to be displayed ("
Keyboard Interrupt - Exiting "), then for the program to exit gracefully.
I'm sure that this is a NOOB mistake, but I can't seem to figure out why
the exception isn't being trapped and handled the way I had hoped.
Can someone shed some light on this for me?
Thank you,
# import standard libraries
import os
import time
import sys
DISPLAY_TIME = 5
g_user_num_items = -1
def start_menu():
start_quit = False
os.system('cls' if os.name == 'nt' else 'clear')
print "\n\n\n\n Welcome to Test.\n"
time.sleep(DISPLAY_TIME)
try:
while not start_quit:
os.system('cls' if os.name == 'nt' else 'clear')
print "\n +++ Test Start Menu +++"
print "Enter the number of items to test,"
print "or, 0 for individual testing."
print "Then press <Enter>\n"
# wait for it...
num_items = int(raw_input(": "))
if num_items == 0: # individual testing
print "\nIndividual testing requested"
g_user_num_items = num_items
start_quit = True
elif(num_items >= 1 and num_items <= 512): # multi testing
g_user_num_items = num_items
print "\nItem count of ", g_user_num_items, ", accepted!"
start_quit = True
else: # unexpected input eg A, >, ? etc
print " Invalid number of items, please re-enter"
time.sleep(DISPLAY_TIME / 2)
##### end item count input
# detect ctrl-c
except KeyboardInterrupt:
# provides a clean exit
print "\n\n Keyboard Interrupt - Exiting \n\n"
time.sleep(5)
# trap no choice, just Enter key cases
except ValueError:
# handles non-entry selections like 'Enter'
print "Invalid selection please try again"
time.sleep(DISPLAY_TIME / 2)
start_menu()
return
##### end main menu
##############################################
# Main entry point into program
#
if __name__ == "__main__":
start_menu()
print "End of Script\n"
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