python for else statements

The "else" block will be normally executed at the end of the for loop or the break is called or list is empty.

lst = [1,2,0,3,4]
for x in lst:
    print "-----for-----",x
else:
    print "----else----", x

Output
====
-----for----- 1
-----for----- 2
-----for----- 0
-----for----- 3
-----for----- 4
----else---- 4

=============

lst = []
for x in lst:
    print "-----for-----",x
else:
    print "----else----", x

Output
====
----else----
Traceback (most recent call last):
 File "del me.py", line 8, in 
   print "----else----", x
NameError: name 'x' is not defined