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<H2>
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12.2.2 AddressList Objects
</H2>
<P>
An <tt class="class">AddressList</tt> instance has the following methods:
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<dl><dt><b><a name='l2h-2367'><tt class='method'>__len__</tt></a></b> (<var>name</var>)
<dd>
Return the number of addresses in the address list.
</dl>
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<dl><dt><b><a name='l2h-2368'><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" <host@domain> form, comma-separated.
</dl>
<P>
<dl><dt><b><a name='l2h-2369'><tt class='method'>__add__</tt></a></b> (<var>name</var>)
<dd>
Return an <tt class="class">AddressList</tt> instance that contains all addresses in
both <tt class="class">AddressList</tt> operands, with duplicates removed (set union).
</dl>
<P>
<dl><dt><b><a name='l2h-2370'><tt class='method'>__sub__</tt></a></b> (<var>name</var>)
<dd>
Return an <tt class="class">AddressList</tt> instance that contains every address in the
left-hand <tt class="class">AddressList</tt> 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-2371'><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>
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