|   | 1 |  initial version  | 
This is something you can pretty much try for yourself.
$ cat test.sage 
A = matrix([[1,2,3],[4,5,6]])
print A
reset()
print A
$ sage test.sage 
[1 2 3]
[4 5 6]
Traceback (most recent call last):
  File "test.py", line 7, in <module>
    print A
NameError: name 'A' is not defined
So I guess it works.
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.