pricelist_per_product/data/pricelist.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
  <data noupdate="1">

    <record id="pricelist_grid" model="product.pricelist">
        <field name="name">Pricelist Grid</field>
        <field name="type">sale</field>
        <field name="price_grid" eval="1"/>
    </record>

    <record id="pricelist_grid_version" model="product.pricelist.version">
        <field name="name">Grid Version</field>
        <field name="pricelist_id" eval="ref('pricelist_grid')"/>
    </record>

  </data>
</openerp>