@Divyesh Patel:

here some mor code:

class product_product(models.Model):
    _inherit = 'product.product'

	
    def get_shop_barcode_location(self,location):
		if location != None and location == 'Munich':
			for loc in self.x_default_stock_location_ids:
				if loc.location_type == 'shop':
					return {'barcode':loc.barcode,'name':loc.name}
				return False
		else:
		    return False

and reduced XML-REport:

<template id="x_article.report_product_shop_label">
<div style="height:149px;overflow:hidden;">
 <table>
      <tr valign="top" style="line-height:1;">
       <t t-set="location" t-value="product.get_shop_barcode_location(shop_location)"/>
     </td>
   </tr>

 </table>
</div>
</template>

<template id="x_article.report_product_shop_label_wien">
  <t t-call="web.basic_layout">
	<div class="page page_stock_product_barcodes">
	  <t t-set="shop_location" t-value="Munich"/>
	  <t t-foreach="docs" t-as="product">
		<t t-call="x_article.report_product_shop_label">
		  <t t-set="product" t-value="product"/>
                    <t t-set="shop_location" t-value="Munich"/>
		</t>
	  </t>
	</div>
  </t>
</template>

Hello,

plasese check it.

<t t-set="location" t-value="product.get_special_location(shop_location)"/>

def get_shop_barcode_location(self,location)

it maybe call method and calling mathod should be diffrent.