Remove support for Python 2.7

issue7497
review53261002

.drone.yml

@@ -25,12 +25,6 @@ services:
 
 matrix:
     include:
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: sqlite
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: postgresql
         - IMAGE: python:3.4
           TOXENV: py34
           DATABASE: sqlite

CHANGELOG

@@ -1,3 +1,5 @@
+* Remove support for Python 2.7
+
 Version 4.8.0 - 2018-04-23
 * Bug fixes (see mercurial logs for details)
 

INSTALL

@@ -4,7 +4,7 @@ Installing trytond_stock_lot_sled
 Prerequisites
 -------------
 
- * Python 2.7 or later (http://www.python.org/)
+ * Python 3.4 or later (http://www.python.org/)
  * python-sql (http://code.google.com/p/python-sql/)
  * trytond (http://www.tryton.org/)
  * trytond_product (http://www.tryton.org/)

product.py

@@ -9,8 +9,7 @@ from .stock import DATE_STATE
 __all__ = ['Template', 'Product']
 
 
-class Template:
-    __metaclass__ = PoolMeta
+class Template(metaclass=PoolMeta):
     __name__ = 'product.template'
 
     shelf_life_state = fields.Selection(
@@ -39,6 +38,5 @@ class Template:
         return 'none'
 
 
-class Product:
-    __metaclass__ = PoolMeta
+class Product(metaclass=PoolMeta):
     __name__ = 'product.product'

setup.py

@@ -1,15 +1,12 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from setuptools import setup
-import re
-import os
 import io
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
+import os
+import re
+from configparser import ConfigParser
+from setuptools import setup
 
 
 def read(fname):
@@ -101,7 +98,6 @@ setup(name=name,
         'Natural Language :: Slovenian',
         'Natural Language :: Spanish',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
@@ -110,6 +106,7 @@ setup(name=name,
         'Topic :: Office/Business',
         ],
     license='GPL-3',
+    python_requires='>=3.4',
     install_requires=requires,
     dependency_links=dependency_links,
     zip_safe=False,
@@ -120,5 +117,4 @@ setup(name=name,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
     tests_require=tests_require,
-    use_2to3=True,
     )

stock.py

@@ -24,8 +24,7 @@ shelf_life_delay = fields.TimeDelta(
     help="The delay before removal from the forecast.")
 
 
-class Configuration:
-    __metaclass__ = PoolMeta
+class Configuration(metaclass=PoolMeta):
     __name__ = 'stock.configuration'
 
     shelf_life_delay = fields.MultiValue(shelf_life_delay)
@@ -44,8 +43,7 @@ class ConfigurationLotShelfLife(ModelSQL, ValueMixin):
     shelf_life_delay = shelf_life_delay
 
 
-class Lot:
-    __metaclass__ = PoolMeta
+class Lot(metaclass=PoolMeta):
     __name__ = 'stock.lot'
 
     shelf_life_expiration_date = fields.Date('Shelf Life Expiration Date',
@@ -146,8 +144,7 @@ class Lot:
                         })
 
 
-class Move:
-    __metaclass__ = PoolMeta
+class Move(metaclass=PoolMeta):
     __name__ = 'stock.move'
 
     @classmethod
@@ -327,8 +324,7 @@ class Move:
         return query
 
 
-class Period:
-    __metaclass__ = PoolMeta
+class Period(metaclass=PoolMeta):
     __name__ = 'stock.period'
 
     @classmethod

tox.ini

@@ -1,11 +1,11 @@
 [tox]
-envlist = {py27,py34,py35,py36}-{sqlite,postgresql},pypy-{sqlite,postgresql}
+envlist = {py34,py35,py36}-{sqlite,postgresql},pypy3-{sqlite,postgresql}
 
 [testenv]
 commands = {envpython} setup.py test
 deps =
-    {py27,py34,py35,py36}-postgresql: psycopg2 >= 2.5
-    pypy-postgresql: psycopg2cffi >= 2.5
+    {py34,py35,py36}-postgresql: psycopg2 >= 2.5
+    pypy3-postgresql: psycopg2cffi >= 2.5
     sqlite: sqlitebck
 setenv =
     sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}