Where to locate existing standard encodings in python

[Tim Chase]

> You haven't explained why you think that you *need* a list of all
> encodings that exist at a point in time. What are you going to do with
> the list?

Just because I ran into this recently, the Dilbert.com site 
returns a bogus Content-type header with

   Content-Type: text/html; charset=utf-8lias

For Python to parse this, I had to use Python's list of known 
encodings in order to determine whether I could even parse the 
site (for passing it to a string's .encode() method).  (Aside: 
stupid dilbert.com site developers...what sorta rubbish is 
"utf-8lias"?!  It's not like it's something that would appear 
accidentally.  And there were bogus characters in the document to 
boot)

-tkc