How to test if a module exists?

[Lawrence D'Oliveiro]

In message <mailman.843.1289438674.2218.python-list at python.org>, Tim Chase 
wrote:

> Amusingly, as others have noted, you replied with an unobfuscated
> email address.

This
<http://mail.python.org/pipermail/python-list/2010-November/1260153.html> 
would seem to be an independent, true record of what members of python-list 
would see of my posting, would it not? You would agree that it shows my e-
mail address as obfuscated, would you not? So if you claim to be seeing an 
unobfuscated e-mail address for my posting on python-list, you would be 
lying, would you not?