Migrate to py3

api.py

@@ -1,23 +1,15 @@
 # This file is part of the carrier_send_shipments_seurvalencia module for Tryton.
 # The COPYRIGHT file at the top level of this repository contains the full
 # copyright notices and license terms.
+import logging
 from trytond.pool import PoolMeta
 from trytond.pyson import Eval, Not, Equal
-import logging
+from seurvalencia.picking import *
-
-try:
-    from seurvalencia.picking import *
-except ImportError:
-    logger = logging.getLogger(__name__)
-    message = 'Install Seur: pip install seurvalencia'
-    logger.error(message)
-    raise Exception(message)
 
 __all__ = ['CarrierApi']
 
 
-class CarrierApi:
+class CarrierApi(metaclass=PoolMeta):
-    __metaclass__ = PoolMeta
     __name__ = 'carrier.api'
 
     @classmethod

manifest.py

@@ -9,8 +9,7 @@ from base64 import decodestring
 __all__ = ['CarrierManifest']
 
 
-class CarrierManifest:
+class CarrierManifest(metaclass=PoolMeta):
-    __metaclass__ = PoolMeta
     __name__ = 'carrier.manifest'
 
     def get_manifest_seurvalencia(self, api, from_date, to_date):

setup.py

@@ -7,10 +7,7 @@ from setuptools import setup
 import re
 import os
 import io
-try:
+from configparser import ConfigParser
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
 
 MODULE2PREFIX = {}
 

shipment.py

@@ -13,8 +13,7 @@ __all__ = ['ShipmentOut']
 logger = logging.getLogger(__name__)
 
 
-class ShipmentOut:
+class ShipmentOut(metaclass=PoolMeta):
-    __metaclass__ = PoolMeta
     __name__ = 'stock.shipment.out'
 
     @classmethod