set_paraguay/partner_data_view.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <record model="ir.ui.view" id="res_partner_ruc">
            <field name="name">res.partner.ruc</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_partner_form"/>
            <field name="arch" type="xml">
              <xpath expr="//field[@name='name']" position="after">
                <br/>
                    <field name="nombre_fantasia" placeholder="Nombre Fantasia"/>


                </xpath>

                <field name="website" position="before">
                    <field name="tipo_identificacion"/>
                  <!--   <field name="sexo" attrs="{'invisible':[('is_company','=',True)]}"/>
                    <field name="fecha_nac" attrs="{'invisible':[('is_company','=',True)]}" options="{'datepicker':{'yearRange': 'c-60:c+0'}}"/>
                    <field name="ubicacion" widget="url"/> -->
                </field>
                <xpath expr="//sheet/group" position="after">
                      <group attrs="{'invisible':[('supplier', '=', False)]}">
                          <group string="Retenciones a proveedores">
                              <field name="retencion"/>
                              <!-- <div class="o_row"> -->

                                  <field name="porcentaje_retencion" widget="integer"/>
                                  <span>%</span>
                              <!-- </div> -->
                            </group>
                              <group>
                              <field name="situacion"/>
                              <field name="retentor_renta"/>
                              <field name="concepto_renta" attrs="{'invisible':[('retentor_renta', '=', False)]}"/>
                              <field name="concepto_iva" attrs="{'invisible':[('retencion', '=', False)]}"/>
                              <field name="porcentaje_retencion_renta" attrs="{'invisible':[('retentor_renta', '=', False)]}"/>
                              <field name="porcentaje_retencion_absorbida" attrs="{'invisible':[('retentor_renta', '=', False)]}"/>
                              <!-- <field name="cuenta_renta"/> -->
                              </group>

                      </group>
      		    </xpath>
              <xpath expr="//sheet/group" position="after">
                  <group>
                      <group string="Datos">
                      <!-- <field name="supplier" invisible="0"/>
                     <field name="customer" invisible="0"/> -->
                     <field name="retiene_iva_cliente" invisible="0"/>
                      <field name="esinternacional" invisible="1"/>
                      <!-- <field name="ruc" attrs="{'required': [('parent_id','=',False) , '&amp;',  ('esinternacional', '=', False),('ci', '=', False)],'invisible': [('esinternacional','=',True)]}"/> -->
                       <field name="digitointer" attrs="{'required': ['|',('customer', '=', True),('supplier','=',True) , '&amp;',  ('esinternacional', '=', True),('ci', '=', False)],'invisible': [('esinternacional','=',False)]}"/>
                      <field name="dv" readonly="1" force_save="1" attrs="{'invisible': [('esinternacional','=',True)]}"/>
                      <field name="ci"/>
                      <!-- <field name="fecha_nacimiento" attrs="{'invisible': [('company_type','=','company')]}"/> -->
                      </group>

                      <group string="Retenciones" attrs="{'invisible':[('customer','!=',True)]}">
                          <field name="iva_retencion_10"/>
                          <field name="iva_retencion_5"/>
                      </group>

                       <group string="Timbrado de facturas" attrs="{'invisible':[('supplier','!=',True)]}">
                          <field name="timbrado"/>
                          <!-- <field name="vencimiento_timbrado"/> -->
                       </group>

                  </group>
          <!-- <field name="contratista"/>
          <field name="nivel" invisible="1"/> -->
          </xpath>


            </field>
        </record>
        <record id="res_partner_extra_data_search" model="ir.ui.view">
            <field name="name">res.partner.extra.data.search</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_res_partner_filter"/>
            <field name="arch" type="xml">
                <field name="name" position="before">
                    <field name="ruc" filter_domain="['|','|','|','|',('ruc','ilike',self),('name','ilike',self),('mobile','ilike',self),('phone','ilike',self),('email','ilike',self)]" string="general"/>
                </field>
            </field>
        </record>
    </data>
</openerp>