How can I detect 64 bit versions of Python?

This is a reworded re-post of a question which I just placed to the
IronPython list.  I repeat it here, because I hope to get a general answer
which will work on CPython, too, since the database driver I support works
on both implementations.  [Note: this applies to Windows only, *nix users
can stop reading now. (Lucky dogs.)]

I am testing adodbapi using my new laptop which I have set up as an
everything in 64-bit test bed.

My default test database is an .mdb (so-called ACCESS database) file.
Microsoft has decided that the JET engine, which has historically been used
to read and write that format is to be deprecated, so there is no 64 bit
version of it.  It is replaced by the Access Database Engine 2010
redistributable.<http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=13255>Of
course, the new software requires a different connection string, one
containing "Provider=Microsoft.ACE.OLEDB.12.0;".

So, how can I tell which "width" of Python I am running, so I know which
connection string to use?
--
Vernon

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