diff --git a/party.xml b/party.xml
index d3425351ee..2d2003418f 100644
--- a/party.xml
+++ b/party.xml
@@ -6,7 +6,8 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_purchase_form2">
             <field name="name">Purchases</field>
             <field name="res_model">purchase.purchase</field>
-            <field name="domain">[('party', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('party', 'in', Eval('active_ids'))]" pyson="1"/>
         </record>
         <record model="ir.action.keyword"
                 id="act_open_purchase_keyword1">
diff --git a/product.py b/product.py
index c8202f4d2e..40d293af8c 100644
--- a/product.py
+++ b/product.py
@@ -67,6 +67,13 @@ class Template:
             else:
                 self.purchase_uom = self.default_uom
 
+    @classmethod
+    def view_attributes(cls):
+        return super(Template, cls).view_attributes() + [
+            ('//page[@id="suppliers"]', 'states', {
+                    'invisible': ~Eval('purchasable'),
+                    })]
+
     @classmethod
     def write(cls, *args):
         actions = iter(args)
diff --git a/purchase.py b/purchase.py
index d9878aad44..d2a92df8ca 100644
--- a/purchase.py
+++ b/purchase.py
@@ -590,6 +590,10 @@ class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
             domain = [domain, ('party', operator, names[1])]
         return domain
 
+    @classmethod
+    def view_attributes(cls):
+        return [('//field[@name="comment"]', 'spell', Eval('party_lang'))]
+
     @classmethod
     def copy(cls, purchases, default=None):
         if default is None:
@@ -1271,6 +1275,11 @@ class PurchaseLine(ModelSQL, ModelView):
                     {'purchase': self.purchase.rec_name})
         return [invoice_line]
 
+    @classmethod
+    def view_attributes(cls):
+        return [('//field[@name="note"]|//field[@name="description"]',
+                'spell', Eval('_parent_purchase', {}).get('party_lang'))]
+
     @classmethod
     def copy(cls, lines, default=None):
         if default is None:
diff --git a/purchase.xml b/purchase.xml
index 4c514fd892..051e0a6cce 100644
--- a/purchase.xml
+++ b/purchase.xml
@@ -69,7 +69,9 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_shipment_form">
             <field name="name">Shipments</field>
             <field name="res_model">stock.shipment.in</field>
-            <field name="domain">[('moves.purchase', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('moves.purchase', 'in', Eval('active_ids'))]"
+                pyson="1"/>
         </record>
         <record model="ir.action.keyword"
                 id="act_open_shipment_keyword1">
@@ -80,7 +82,9 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_return_form">
             <field name="name">Returns</field>
             <field name="res_model">stock.shipment.in.return</field>
-            <field name="domain">[('moves.purchase', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('moves.purchase', 'in', Eval('active_ids'))]"
+                pyson="1"/>
         </record>
         <record model="ir.action.keyword"
             id="act_open_shipment_return_keyword1">
@@ -91,7 +95,9 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_invoice_form">
             <field name="name">Invoices</field>
             <field name="res_model">account.invoice</field>
-            <field name="domain">[('lines.origin.purchase.id', 'in', Eval('active_ids'), 'purchase.line')]</field>
+            <field name="domain"
+                eval="[('lines.origin.purchase.id', 'in', Eval('active_ids'), 'purchase.line')]"
+                pyson="1"/>
         </record>
         <record model="ir.action.keyword"
                 id="act_open_invoice_keyword1">
@@ -131,28 +137,28 @@ this repository contains the full copyright notices and license terms. -->
             id="act_purchase_form_domain_draft">
             <field name="name">Draft</field>
             <field name="sequence" eval="10"/>
-            <field name="domain">[('state', '=', 'draft')]</field>
+            <field name="domain" eval="[('state', '=', 'draft')]" pyson="1"/>
             <field name="act_window" ref="act_purchase_form"/>
         </record>
         <record model="ir.action.act_window.domain"
             id="act_purchase_form_domain_quotation">
             <field name="name">Quotation</field>
             <field name="sequence" eval="20"/>
-            <field name="domain">[('state', '=', 'quotation')]</field>
+            <field name="domain" eval="[('state', '=', 'quotation')]" pyson="1"/>
             <field name="act_window" ref="act_purchase_form"/>
         </record>
         <record model="ir.action.act_window.domain"
             id="act_purchase_form_domain_confirmed">
             <field name="name">Confirmed</field>
             <field name="sequence" eval="30"/>
-            <field name="domain">[('state', '=', 'confirmed')]</field>
+            <field name="domain" eval="[('state', '=', 'confirmed')]" pyson="1"/>
             <field name="act_window" ref="act_purchase_form"/>
         </record>
         <record model="ir.action.act_window.domain"
             id="act_purchase_form_domain_processing">
             <field name="name">Processing</field>
             <field name="sequence" eval="40"/>
-            <field name="domain">[('state', '=', 'processing')]</field>
+            <field name="domain" eval="[('state', '=', 'processing')]" pyson="1"/>
             <field name="act_window" ref="act_purchase_form"/>
         </record>
         <record model="ir.action.act_window.domain"
@@ -172,7 +178,8 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_purchase_invoice_relate">
             <field name="name">Purchases</field>
             <field name="res_model">purchase.purchase</field>
-            <field name="domain">[('invoices', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('invoices', 'in', Eval('active_ids'))]" pyson="1"/>
         </record>
         <record model="ir.action.act_window.view"
             id="act_purchase_invoice_relate_view1">
@@ -385,7 +392,9 @@ this repository contains the full copyright notices and license terms. -->
             <field name="global_p" eval="True"/>
         </record>
         <record model="ir.rule" id="rule_product_supplier">
-            <field name="domain">[('company', '=', user.company.id if user.company else None)]</field>
+            <field name="domain"
+                eval="[('company', '=', Eval('user', {}).get('company', None))]"
+                pyson="1"/>
             <field name="rule_group" ref="rule_group_product_supplier"/>
         </record>
 
@@ -425,7 +434,9 @@ this repository contains the full copyright notices and license terms. -->
             id="act_product_supplier_price_form">
             <field name="name">Prices</field>
             <field name="res_model">purchase.product_supplier.price</field>
-            <field name="domain">[('product_supplier', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('product_supplier', 'in', Eval('active_ids'))]"
+                pyson="1"/>
         </record>
         <record model="ir.action.keyword"
             id="act_product_supplier_price_form_keyword1">
@@ -482,7 +493,9 @@ this repository contains the full copyright notices and license terms. -->
             <field name="global_p" eval="True"/>
         </record>
         <record model="ir.rule" id="rule_purchase1">
-            <field name="domain">[('company', '=', user.company.id if user.company else None)]</field>
+            <field name="domain"
+                eval="[('company', '=', Eval('user', {}).get('company', None))]"
+                pyson="1"/>
             <field name="rule_group" ref="rule_group_purchase"/>
         </record>
 
diff --git a/view/purchase_form.xml b/view/purchase_form.xml
index f767c24e1e..c64c46e25d 100644
--- a/view/purchase_form.xml
+++ b/view/purchase_form.xml
@@ -64,7 +64,7 @@ this repository contains the full copyright notices and license terms. -->
             <label name="invoice_method"/>
             <field name="invoice_method"/>
             <separator name="comment" colspan="4"/>
-            <field name="comment" colspan="4" spell="Eval('party_lang')"/>
+            <field name="comment" colspan="4"/>
         </page>
         <page string="Invoices" id="invoices">
             <field name="invoices" colspan="4"/>
diff --git a/view/purchase_line_form.xml b/view/purchase_line_form.xml
index eff15f40d9..ff6204638e 100644
--- a/view/purchase_line_form.xml
+++ b/view/purchase_line_form.xml
@@ -15,8 +15,7 @@ this repository contains the full copyright notices and license terms. -->
                 view_ids="purchase.product_view_list_purchase_line"/>
             <newline/>
             <label name="description"/>
-            <field name="description" colspan="3" yexpand="0"
-                spell="Get(Eval('_parent_purchase', {}), 'party_lang')"/>
+            <field name="description" colspan="3" yexpand="0"/>
             <label name="quantity"/>
             <field name="quantity"/>
             <label name="unit"/>
@@ -33,8 +32,7 @@ this repository contains the full copyright notices and license terms. -->
         </page>
         <page string="Notes" id="notes">
             <separator name="note" colspan="4"/>
-            <field name="note" colspan="4"
-                spell="Get(Eval('_parent_purchase', {}), 'party_lang')"/>
+            <field name="note" colspan="4"/>
         </page>
     </notebook>
 </form>
diff --git a/view/template_form.xml b/view/template_form.xml
index 2afde822d6..6bdc5738cc 100644
--- a/view/template_form.xml
+++ b/view/template_form.xml
@@ -9,9 +9,7 @@ this repository contains the full copyright notices and license terms. -->
         <field name="purchasable"/>
     </xpath>
     <xpath expr="/form/notebook/page[@id='general']" position="after">
-        <page string="Suppliers"
-            states="{'invisible': Not(Bool(Eval('purchasable')))}"
-            id="suppliers">
+        <page string="Suppliers" id="suppliers">
             <label name="purchasable"/>
             <field name="purchasable"/>
             <label name="purchase_uom"/>