odoo/addons/stock_account/product_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="view_category_property_form" model="ir.ui.view">
            <field name="name">product.category.stock.property.form.inherit</field>
            <field name="model">product.category</field>
            <field name="inherit_id" ref="account.view_category_property_form"/>
            <field name="arch" type="xml">
                <data>
                    <group name="account_property" position="after">
                        <group name="account_stock_property" string="Account Stock Properties" colspan="2">
                            <field name="property_stock_account_input_categ" domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                            <field name="property_stock_account_output_categ" domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                            <field name="property_stock_valuation_account_id" domain="[('type','&lt;&gt;','view'), ('type','&lt;&gt;','consolidation')]"/>
                            <field name="property_stock_journal"/>
                        </group>
                    </group>
                </data>
            </field>
        </record>

        <record id="view_template_property_form" model="ir.ui.view">
            <field name="name">product.template.stock.property.form.inherit</field>
            <field name="model">product.template</field>
            <field name="inherit_id" ref="product.product_template_form_view"/>
            <field name="arch" type="xml">
                <group name="sale_condition" position="inside">
                    <field name="sale_delay" attrs="{'readonly':[('sale_ok','=',False)]}"/>
                </group>
                <group name="procurement_uom" position="after">
                    <group name="store" string="Storage Location">
                        <field name="loc_rack"/>
                        <field name="loc_row"/>
                        <field name="loc_case"/>
                    </group>
                </group>
                <xpath expr="//group[@name='weight']" position="after">
                    <group string="Accounting Entries">
                        <field name="property_stock_account_input" domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                        <field name="property_stock_account_output" domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                    </group>
		</xpath>
		<xpath expr="//field[@name='standard_price']" position='replace'>
                    <field name="standard_price" attrs="{'readonly':[('cost_method','=','average')]}"/>
                    <field name="cost_method" groups="stock_account.group_inventory_valuation"/>
		</xpath>
            </field>
        </record>

        <record id="view_product_standard_price_form" model="ir.ui.view">
            <field name="name">product.product.standard.price.form.inherit</field>
            <field name="model">product.product</field>
            <field name="inherit_id" ref="product.product_normal_form_view"/>
            <field name="arch" type="xml">
                <field name="standard_price" position="replace" version="7.0">
                    <field name="cost_method" groups="stock_account.group_inventory_valuation" attrs="{'readonly': [('is_only_child', '=', False)]}"/>
                    <label string="Cost Price" for="standard_price" align="1.0" groups="base.group_user"/>
                    <div groups="base.group_user">
                        <field name="standard_price" attrs="{'readonly':['|', ('is_only_child', '=', False), '&amp;', ('valuation','=','real_time'), ('cost_method', 'in', ['standard', 'average'])]}" nolabel="1"/>
                        <button name="%(action_view_change_standard_price)d" string="- update"
                            type="action" attrs="{'invisible':['|', '|', ('is_only_child', '=', False), ('valuation','!=', 'real_time'), ('cost_method', 'not in', ['standard', 'average'])]}"
                            class="oe_link" groups="stock_account.group_inventory_valuation"/>
                    </div>
                </field>
            </field>
        </record>

        <record id="view_normal_property_acc_form" model="ir.ui.view">
            <field name="name">product.normal.stock.acc.property.form.inherit</field>
            <field name="model">product.product</field>
            <field name="inherit_id" ref="product.product_normal_form_view"/>
            <field name="priority">26</field>
            <field name="arch" type="xml">
                <xpath expr="//group[@name='properties']" position="before">
                    <group groups="stock_account.group_inventory_valuation">
                        <separator string="Inventory Valuation" colspan="4"/>
                        <group colspan="2" col="2">
                            <field name="valuation" attrs="{'readonly':[('type', '=', 'service')]}"/>
                        </group>
                        <group colspan="2" col="2">
                            <field name="property_stock_account_input" attrs="{'invisible':[('valuation', '!=', 'real_time')]}"
                                domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                            <field name="property_stock_account_output" attrs="{'invisible':[('valuation', '!=', 'real_time')]}"
                                domain="[('type','&lt;&gt;','view'),('type','&lt;&gt;','consolidation')]"/>
                        </group>
                    </group>
                    <newline/>
                </xpath>
            </field>
        </record>
    </data>
</openerp>