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 eb5cdeb039..9d5dbe858f 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 89f4fdee7d..44832dfd01 100644
--- a/INSTALL
+++ b/INSTALL
@@ -4,7 +4,7 @@ Installing trytond_purchase_shipment_cost
 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_carrier (http://www.tryton.org/)
  * trytond_currency (http://www.tryton.org/)
diff --git a/__init__.py b/__init__.py
index 26948176c2..36b119010f 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,13 +2,13 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from stock import *
-from carrier import *
+from . import stock
+from . import carrier
 
 
 def register():
     Pool.register(
-        ShipmentIn,
-        Move,
-        Carrier,
+        stock.ShipmentIn,
+        stock.Move,
+        carrier.Carrier,
         module='purchase_shipment_cost', type_='model')
diff --git a/carrier.py b/carrier.py
index d0209230b3..037e783161 100644
--- a/carrier.py
+++ b/carrier.py
@@ -6,8 +6,7 @@ from trytond.pool import PoolMeta
 __all__ = ['Carrier']
 
 
-class Carrier:
-    __metaclass__ = PoolMeta
+class Carrier(metaclass=PoolMeta):
     __name__ = 'carrier'
     carrier_cost_allocation_method = fields.Selection([
             ('value', 'By Value'),
diff --git a/setup.py b/setup.py
index 6bfafc445f..c0c7354f36 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'))
@@ -59,7 +57,6 @@ for dep in info.get('extras_depend', []):
         extras_require[dep] = get_require_version('trytond_%s' % dep)
 
 tests_require = [get_require_version('proteus'),
-    'mock',  # For account_stock_anglo_saxon tests tools
     get_require_version('trytond_account_stock_continental'),
     get_require_version('trytond_account_stock_anglo_saxon'),
     get_require_version('trytond_purchase')]
@@ -111,7 +108,6 @@ 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',
@@ -120,6 +116,7 @@ setup(name=name,
         'Topic :: Office/Business',
         ],
     license='GPL-3',
+    python_requires='>=3.4',
     install_requires=requires,
     extras_require=extras_require,
     dependency_links=dependency_links,
@@ -131,10 +128,4 @@ setup(name=name,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
     tests_require=tests_require,
-    use_2to3=True,
-    convert_2to3_doctests=[
-        'tests/scenario_purchase_shipment_cost.rst',
-        'tests/scenario_purchase_shipment_cost_with_account_stock.rst',
-        'tests/scenario_purchase_shipment_cost_with_account_stock_anglo_saxon.rst',
-        ],
     )
diff --git a/stock.py b/stock.py
index 8e4956057e..5a8f73d2a6 100644
--- a/stock.py
+++ b/stock.py
@@ -13,8 +13,7 @@ from trytond.modules.product import price_digits
 __all__ = ['ShipmentIn', 'Move']
 
 
-class ShipmentIn:
-    __metaclass__ = PoolMeta
+class ShipmentIn(metaclass=PoolMeta):
     __name__ = 'stock.shipment.in'
     carrier = fields.Many2One('carrier', 'Carrier', states={
             'readonly': Eval('state') != 'draft',
@@ -139,8 +138,7 @@ class ShipmentIn:
         super(ShipmentIn, cls).receive(shipments)
 
 
-class Move:
-    __metaclass__ = PoolMeta
+class Move(metaclass=PoolMeta):
     __name__ = 'stock.move'
     unit_shipment_cost = fields.Numeric('Unit Shipment Cost',
         digits=price_digits, readonly=True)
diff --git a/tests/scenario_purchase_shipment_cost.rst b/tests/scenario_purchase_shipment_cost.rst
index 14b9e03bef..13da553595 100644
--- a/tests/scenario_purchase_shipment_cost.rst
+++ b/tests/scenario_purchase_shipment_cost.rst
@@ -89,7 +89,7 @@ Receive a single product line::
     True
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> move, = shipment.incoming_moves
     >>> move.unit_price
     Decimal('8.0600')
@@ -110,7 +110,7 @@ Receive many product lines::
     Decimal('3')
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> [move.unit_price for move in shipment.incoming_moves] == \
     ...     [Decimal('8.3333'), Decimal('8.3333'), Decimal('8.3334')]
     True
@@ -136,6 +136,6 @@ Receive a two lines with no cost::
     Decimal('3')
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> tuple(m.unit_price for m in shipment.incoming_moves)
     (Decimal('0.0600'), Decimal('0.0200'))
diff --git a/tests/scenario_purchase_shipment_cost_with_account_stock.rst b/tests/scenario_purchase_shipment_cost_with_account_stock.rst
index ee83937863..a55bbbf36b 100644
--- a/tests/scenario_purchase_shipment_cost_with_account_stock.rst
+++ b/tests/scenario_purchase_shipment_cost_with_account_stock.rst
@@ -148,7 +148,7 @@ Receive a single product line::
     True
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> move, move_average = shipment.incoming_moves
     >>> move.unit_price
     Decimal('8.0600')
@@ -183,7 +183,7 @@ Receive many product lines::
     Decimal('3')
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> [move.unit_price for move in shipment.incoming_moves] == \
     ...     [Decimal('8.3333'), Decimal('8.3333'), Decimal('8.3334')]
     True
diff --git a/tests/scenario_purchase_shipment_cost_with_account_stock_anglo_saxon.rst b/tests/scenario_purchase_shipment_cost_with_account_stock_anglo_saxon.rst
index 50aa89adcb..b9a8a80339 100644
--- a/tests/scenario_purchase_shipment_cost_with_account_stock_anglo_saxon.rst
+++ b/tests/scenario_purchase_shipment_cost_with_account_stock_anglo_saxon.rst
@@ -142,7 +142,7 @@ Purchase 5 products::
     >>> purchase.click('confirm')
     >>> purchase.click('process')
     >>> purchase.state
-    u'processing'
+    'processing'
 
 Receive 4 products::
 
@@ -159,13 +159,13 @@ Receive 4 products::
     True
     >>> shipment.click('receive')
     >>> shipment.state
-    u'received'
+    'received'
     >>> move, = shipment.incoming_moves
     >>> move.unit_price
     Decimal('5.7500')
     >>> shipment.click('done')
     >>> shipment.state
-    u'done'
+    'done'
     >>> stock_supplier.reload()
     >>> stock.reload()
     >>> stock_supplier.debit
@@ -192,7 +192,7 @@ Open supplier invoice::
     >>> invoice.save()
     >>> invoice.click('post')
     >>> invoice.state
-    u'posted'
+    'posted'
     >>> payable.reload()
     >>> payable.debit
     Decimal('0.00')
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://}