product_data.xml

<?xml version="1.0"?>
<openerp>
	<data noupdate="1">

		<record model="product.pricelist.type" id="pricelist_type_internal">
			<field name="name">Internal Pricelist</field>
			<field name="key">internal</field>
		</record>
	</data>
</openerp>