in the <tt>try</tt> block fails it is probably because no record
matched the <tt>WHERE name = ?</tt> clause on the SELECT statement. So in the
<tt>except</tt> block, we use the SQL <tt>INSERT</tt> statement to add the friend's
<code>screen_name</code> to the table with an indication that we have not yet 
retrieved the <code>screen_name</code> and setting the friend count to zero.<br />
<br />
So the first time the program runs and we enter a Twitter account, the program
runs as follows:
</font><pre><font si