Migrate to python 3.

address.py

@@ -5,8 +5,7 @@ from trytond.pool import PoolMeta
 __all__ = ['Address']
 
 
-class Address:
-    __metaclass__ = PoolMeta
+class Address(metaclass=PoolMeta):
     __name__ = 'party.address'
 
     @classmethod

country_zip.py

@@ -46,11 +46,11 @@ class LoadCountryZips(Wizard):
                 os.path.dirname(__file__), 'country_zip_es.csv'))
         try:
             rows = reader(data, delimiter=delimiter, quotechar=quotechar)
-        except TypeError, e:
+        except TypeError as e:
             self.raise_user_error('error',
                 error_description='read_error',
                 error_description_args=('country_zip_es.csv', e))
-        rows.next()
+        next(rows)
 
         records = []
         for row in rows:

setup.py

@@ -7,10 +7,7 @@ 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 = 'country_zip_es'
 PREFIX = 'trytonspain'

tests/scenario_country_zip_es.rst

@@ -31,6 +31,6 @@ Ensure that banks are loaded::
     >>> CountryZip = Model.get('country.zip')
     >>> czip, = CountryZip.find([('zip', '=', '25001')])
     >>> czip.city
-    u'Lleida'
+    'Lleida'
     >>> czip.country.code
-    u'ES'
+    'ES'