How to test if a module exists?

[Ethan Furman]

Lawrence D'Oliveiro wrote:
> 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?

I'm using Thunderbird, and the headers, which I see very plainly while 
reading postings, says : Lawrence D'Oliveiro <ldo at geek-central.gen.nz>.

That's what I see.

~Ethan~