Add Python3 support

issue3211
review24851003

.drone.yml

@@ -1,9 +1,9 @@
-image: python2.7
+image: python:all
 env:
   - POSTGRESQL_URI=postgresql://postgres@127.0.0.1:5432/
   - MYSQL_URI=mysql://root@127.0.0.1:3306/
 script:
   - pip install tox
-  - tox -e "py27-{sqlite,postgresql}"
+  - tox -e "{py27,py33,py34,py35}-{sqlite,postgresql}" --skip-missing-interpreters
 services:
   - postgres

CHANGELOG

@@ -1,3 +1,5 @@
+* Add Python3 support
+
 Version 3.8.0 - 2015-11-02
 * Bug fixes (see mercurial logs for details)
 

forecast.py

@@ -1,5 +1,6 @@
 # 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 __future__ import division
 import datetime
 from dateutil.relativedelta import relativedelta
 import itertools
@@ -435,8 +436,8 @@ class ForecastLine(ModelSQL, ModelView):
 
         delta = to_date - from_date
         delta = delta.days + 1
-        nb_packet = int((self.quantity - self.quantity_executed)
-            / self.minimal_quantity)
+        nb_packet = ((self.quantity - self.quantity_executed)
+            // self.minimal_quantity)
         distribution = self.distribute(delta, nb_packet)
         unit_price = None
         if self.forecast.destination.type == 'customer':
@@ -484,7 +485,7 @@ class ForecastLine(ModelSQL, ModelView):
             elif delta // qty > 1:
                 i = 0
                 while i < qty:
-                    a[i * delta // qty + (delta // qty / 2)] += 1
+                    a[i * delta // qty + (delta // qty // 2)] += 1
                     i += 1
                 qty = 0
             else:
@@ -493,7 +494,7 @@ class ForecastLine(ModelSQL, ModelView):
                 qty = delta - qty
                 i = 0
                 while i < qty:
-                    a[delta - ((i * delta // qty) + (delta // qty / 2)) - 1
+                    a[delta - ((i * delta // qty) + (delta // qty // 2)) - 1
                         ] -= 1
                     i += 1
                 qty = 0

setup.py

@@ -5,11 +5,17 @@
 from setuptools import setup
 import re
 import os
-import ConfigParser
+import io
+try:
+    from configparser import ConfigParser
+except ImportError:
+    from ConfigParser import ConfigParser
 
 
 def read(fname):
-    return open(os.path.join(os.path.dirname(__file__), fname)).read()
+    return io.open(
+        os.path.join(os.path.dirname(__file__), fname),
+        'r', encoding='utf-8').read()
 
 
 def get_require_version(name):
@@ -21,7 +27,7 @@ def get_require_version(name):
         major_version, minor_version + 1)
     return require
 
-config = ConfigParser.ConfigParser()
+config = ConfigParser()
 config.readfp(open('tryton.cfg'))
 info = dict(config.items('tryton'))
 for key in ('depends', 'extras_depend', 'xml'):
@@ -89,6 +95,9 @@ setup(name=name,
         'Natural Language :: Spanish',
         'Operating System :: OS Independent',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Office/Business',
@@ -102,4 +111,5 @@ setup(name=name,
     """,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
+    use_2to3=True,
     )

tox.ini

@@ -1,10 +1,10 @@
 [tox]
-envlist = py27-{sqlite,postgresql,mysql},pypy-{sqlite,postgresql}
+envlist = {py27,py33,py34,py35}-{sqlite,postgresql,mysql},pypy-{sqlite,postgresql}
 
 [testenv]
 commands = {envpython} setup.py test
 deps =
-    py27-postgresql: psycopg2 >= 2.0
+    {py27,py33,py34,py35}-postgresql: psycopg2 >= 2.0
     pypy-postgresql: psycopg2cffi >= 2.5
     mysql: MySQL-python
 setenv =