---------- code here ---------
def f():
if error:
raise ValueError
else:
print "I'm in f()"
def g():
print "I'm in g()"
def h():
error = True
print "error is: ", error
n = 5
while n:
print "n is: ", n
n -= 1
try:
f()
g()
except ValueError:
error = False
continue
h()
----------------------------------
The above fails because error is a local variable in h() so is not
visible
in f(). If we pass error as an argument to f it works as expected:
$ python testry.py
error is: True
n is: 5
n is: 4
I'm in f()
I'm in g()
n is: 3
I'm in f()
I'm in g()
n is: 2
I'm in f()
I'm in g()
n is: 1
I'm in f()
I'm in g()
It sounds like you are still struggling with this concept however.
Is there anything specificly that you don;t feel comfortable with?
Alan G
Author of the Learn to Program web tutor
http://www.freenetpages.co.uk/hp/alan.gauld
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
