<font color="black">The type of a variable is the type of the value it refers to.
</font><pre><font size="4" color="blue">
&gt;&gt;&gt; type(message)
&lt;type 'str'&gt;
&gt;&gt;&gt; type(n)
&lt;type 'int'&gt;
&gt;&gt;&gt; type(pi)
&lt;type 'float'&gt;
</font></pre>
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<h2><font color="black"><a name="htoc19">2.3</a>&nbsp;&nbsp;Variable names and keywords</font></h2>
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<font color="black">Programmers generally choose names for their variables that
are meaningful---th