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Status line. Also trapping ^C
Exceptions example from a Well House Consultants training course
More on Exceptions [link]

This example is described in the following article(s):
   • Pressing ^C in a Python program. Also Progress Bar. - [link]

Source code: prog Module: Y109

# Status line. Also trapping ^C

# using "except KeyboardInterrupt"
# using \r to return carriage to left hand side but no new line
# using flush to write out buffered text straight away

import sys
import time

pausetime = 0

for k in range(1500,0,-1):
                print "\r currently at %4d" % k,
                pausetime += 1
                if pausetime < 15: break
                pausetime = 0
                print "\n Press ^C again quickly to carry on\n"

print "Program carrying on ..."

""" Sample Output

munchkin:ps grahamellis$ python prog
 currently at 1467 C
 Press ^C again quickly to carry on

 currently at 1404 C
 Press ^C again quickly to carry on

 currently at 1393 Program carrying on ...
munchkin:ps grahamellis$
munchkin:ps grahamellis$


Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Python
 * Python Programming
 * Intermediate Python
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Other Examples
This example comes from our "Exceptions" training module. You'll find a description of the topic and some other closely related examples on the "Exceptions" module index page.

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