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<H2><A NAME="SECTION0014520000000000000000"></A>
<BR>
12.5.2 AddressList Objects 
</H2>

<P>
An <tt class=class>AddressList</tt> instance has the following methods:

<P>
<dl><dt><b><a name="l2h-1991"><tt class=method>__len__</tt></a></b> (<var>name</var>)
<dd>
Return the number of addresses in the address list.
</dl>

<P>
<dl><dt><b><a name="l2h-1992"><tt class=method>__str__</tt></a></b> (<var>name</var>)
<dd>
Return a canonicalized string representation of the address list.
Addresses are rendered in "name" &lt;host@domain&gt; form, comma-separated.
</dl>

<P>
<dl><dt><b><a name="l2h-1993"><tt class=method>__add__</tt></a></b> (<var>name</var>)
<dd>
Return an AddressList instance that contains all addresses in both
AddressList operands, with duplicates removed (set union).
</dl>

<P>
<dl><dt><b><a name="l2h-1994"><tt class=method>__sub__</tt></a></b> (<var>name</var>)
<dd>
Return an AddressList instance that contains every address in the
left-hand AddressList operand that is not present in the right-hand
address operand (set difference).
</dl>

<P>
Finally, <tt class=class>AddressList</tt> instances have one public instance variable:

<P>
<dl><dt><b><a name="l2h-1995"><tt class=member>addresslist</tt></a></b>
<dd>
A list of tuple string pairs, one per address.  In each member, the
first is the canonicalized name part of the address, the second is the
route-address (@-separated host-domain pair).
</dl><p>
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