diff --git a/.drone.yml b/.drone.yml
index e0bc2f7026..5da6083eb7 100644
--- a/.drone.yml
+++ b/.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
diff --git a/CHANGELOG b/CHANGELOG
index 2ecad11b4b..0f406a5da1 100644
--- a/CHANGELOG
+++ b/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)
 
diff --git a/INSTALL b/INSTALL
index 4c9d4146a9..4516249650 100644
--- a/INSTALL
+++ b/INSTALL
@@ -4,7 +4,7 @@ Installing trytond_stock_supply_production
 Prerequisites
 -------------
 
- * Python 2.7 or later (http://www.python.org/)
+ * Python 3.4 or later (http://www.python.org/)
  * trytond (http://www.tryton.org/)
  * trytond_product (http://www.tryton.org/)
  * trytond_stock (http://www.tryton.org/)
diff --git a/__init__.py b/__init__.py
index 6c9da10c05..e356141069 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,20 +2,20 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from stock import *
-from production import *
-from product import *
+from . import stock
+from . import production
+from . import product
 
 
 def register():
     Pool.register(
-        OrderPoint,
-        LocationLeadTime,
-        Configuration,
-        ConfigurationSupplyPeriod,
-        Production,
-        Product,
+        stock.OrderPoint,
+        stock.LocationLeadTime,
+        production.Configuration,
+        production.ConfigurationSupplyPeriod,
+        production.Production,
+        product.Product,
         module='stock_supply_production', type_='model')
     Pool.register(
-        StockSupply,
+        stock.StockSupply,
         module='stock_supply_production', type_='wizard')
diff --git a/product.py b/product.py
index ee82a9a33d..9264e1888f 100644
--- a/product.py
+++ b/product.py
@@ -7,8 +7,7 @@ from trytond.pool import Pool, PoolMeta
 __all__ = ['Product']
 
 
-class Product:
-    __metaclass__ = PoolMeta
+class Product(metaclass=PoolMeta):
     __name__ = 'product.product'
 
     def get_supply_period(self):
diff --git a/production.py b/production.py
index b20e93238f..6613c2a1fb 100644
--- a/production.py
+++ b/production.py
@@ -12,8 +12,7 @@ __all__ = ['Configuration', 'ConfigurationSupplyPeriod', 'Production']
 supply_period = fields.TimeDelta("Supply Period")
 
 
-class Configuration:
-    __metaclass__ = PoolMeta
+class Configuration(metaclass=PoolMeta):
     __name__ = 'production.configuration'
     supply_period = fields.MultiValue(supply_period)
 
@@ -24,8 +23,7 @@ class ConfigurationSupplyPeriod(ModelSQL, ValueMixin):
     supply_period = supply_period
 
 
-class Production:
-    __metaclass__ = PoolMeta
+class Production(metaclass=PoolMeta):
     __name__ = 'production'
 
     @classmethod
@@ -208,7 +206,7 @@ class Production:
                     [location_id],
                     with_childs=True,
                     grouping_filter=(product_ids,))
-            for key, qty in pbl.iteritems():
+            for key, qty in pbl.items():
                 _, product_id = key
                 current_qties[product_id] += qty
 
diff --git a/setup.py b/setup.py
index 0e47c4b63e..71e00bedaa 100644
--- a/setup.py
+++ b/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):
@@ -27,6 +24,7 @@ def get_require_version(name):
         major_version, minor_version + 1)
     return require
 
+
 config = ConfigParser()
 config.readfp(open('tryton.cfg'))
 info = dict(config.items('tryton'))
@@ -102,7 +100,6 @@ 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',
@@ -111,6 +108,7 @@ setup(name=name,
         'Topic :: Office/Business',
         ],
     license='GPL-3',
+    python_requires='>=3.4',
     install_requires=requires,
     dependency_links=dependency_links,
     zip_safe=False,
@@ -121,8 +119,4 @@ setup(name=name,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
     tests_require=tests_require,
-    use_2to3=True,
-    convert_2to3_doctests=[
-        'tests/scenario_stock_supply_production.rst',
-        ],
     )
diff --git a/stock.py b/stock.py
index 0d73a8fb2f..4721978873 100644
--- a/stock.py
+++ b/stock.py
@@ -9,8 +9,7 @@ from trytond.wizard import StateAction
 __all__ = ['OrderPoint', 'LocationLeadTime', 'StockSupply']
 
 
-class OrderPoint:
-    __metaclass__ = PoolMeta
+class OrderPoint(metaclass=PoolMeta):
     __name__ = 'stock.order_point'
 
     @classmethod
@@ -51,8 +50,7 @@ class OrderPoint:
         return location
 
 
-class LocationLeadTime:
-    __metaclass__ = PoolMeta
+class LocationLeadTime(metaclass=PoolMeta):
     __name__ = 'stock.location.lead_time'
 
     @classmethod
@@ -66,8 +64,7 @@ class LocationLeadTime:
         return extra
 
 
-class StockSupply:
-    __metaclass__ = PoolMeta
+class StockSupply(metaclass=PoolMeta):
     __name__ = 'stock.supply'
 
     production = StateAction('stock_supply_production.act_production_request')
diff --git a/tests/scenario_stock_supply_production.rst b/tests/scenario_stock_supply_production.rst
index 61e39515cb..2a31ead3db 100644
--- a/tests/scenario_stock_supply_production.rst
+++ b/tests/scenario_stock_supply_production.rst
@@ -59,7 +59,7 @@ Create a need for product::
     >>> move.to_location = lost_loc
     >>> move.click('do')
     >>> move.state
-    u'done'
+    'done'
 
 The is no production request::
 
@@ -76,7 +76,7 @@ There is now a production request::
 
     >>> production, = Production.find([])
     >>> production.state
-    u'request'
+    'request'
     >>> production.product == product
     True
     >>> production.quantity
@@ -118,7 +118,7 @@ There is now a production request::
 
     >>> production, = Production.find([])
     >>> production.state
-    u'request'
+    'request'
     >>> production.product == product
     True
     >>> production.quantity
diff --git a/tox.ini b/tox.ini
index 2082ab4f4d..adbcbf8431 100644
--- a/tox.ini
+++ b/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://}