Migrate to python 3.

product.py

@@ -9,8 +9,7 @@ from trytond.transaction import Transaction
 __all__ = ['Template', 'Product', 'ProductCustomer']
 
 
-class Template:
-    __metaclass__ = PoolMeta
+class Template(metaclass=PoolMeta):
     __name__ = "product.template"
     product_customers = fields.One2Many('sale.product_customer',
         'product', 'Customers',
@@ -69,8 +68,7 @@ class Template:
         return res
 
 
-class Product:
-    __metaclass__ = PoolMeta
+class Product(metaclass=PoolMeta):
     __name__ = 'product.product'
     customer_code = fields.Function(fields.Char('Customer Code'),
         'get_customer_fields', searcher='search_customer_field')

sale.py

@@ -9,8 +9,7 @@ from trytond.transaction import Transaction
 __all__ = ['SaleLine']
 
 
-class SaleLine:
-    __metaclass__ = PoolMeta
+class SaleLine(metaclass=PoolMeta):
     __name__ = 'sale.line'
 
     @classmethod

setup.py

@@ -5,10 +5,7 @@ from setuptools import setup
 import re
 import os
 import io
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
+from configparser import ConfigParser
 
 MODULE = 'sale_customer_product'
 PREFIX = 'nantic'

tests/scenario_sale_customer_product.rst

@@ -150,7 +150,7 @@ Create an Inventory::
     >>> inventory_line.save()
     >>> Inventory.confirm([inventory.id], config.context)
     >>> inventory.state
-    u'done'
+    'done'
 
 Sale 5 products::
 
@@ -178,10 +178,10 @@ Sale 5 products::
     >>> Sale.confirm([sale.id], config.context)
     >>> Sale.process([sale.id], config.context)
     >>> sale.state
-    u'processing'
+    'processing'
     >>> sale.reload()
     >>> sale_line.description
-    u'[1111] Customer 1 Product'
+    '[1111] Customer 1 Product'
 
 Sale 5 products::
 
@@ -209,5 +209,5 @@ Sale 5 products::
     >>> Sale.confirm([sale.id], config.context)
     >>> Sale.process([sale.id], config.context)
     >>> sale.state
-    u'processing'
+    'processing'
     >>> sale.reload()