diff --git a/addons/hw_escpos/controllers/main.py b/addons/hw_escpos/controllers/main.py
index 812e8d74ce7..e55dc57af5a 100644
--- a/addons/hw_escpos/controllers/main.py
+++ b/addons/hw_escpos/controllers/main.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from __future__ import print_function
 import commands
 import logging
 import math
@@ -131,9 +132,9 @@ class EscposDriver(Thread):
                 self.status['messages'] = []
 
         if status == 'error' and message:
-            _logger.error('ESC/POS Error: '+message)
+            _logger.error('ESC/POS Error: %s', message)
         elif status == 'disconnected' and message:
-            _logger.warning('ESC/POS Device Disconnected: '+message)
+            _logger.warning('ESC/POS Device Disconnected: %s', message)
 
     def run(self):
         printer = None
@@ -170,17 +171,16 @@ class EscposDriver(Thread):
                 error = False
 
             except NoDeviceError as e:
-                print "No device found %s" %str(e)
+                print("No device found %s" % e)
             except HandleDeviceError as e:
-                print "Impossible to handle the device due to previous error %s" % str(e)
+                print("Impossible to handle the device due to previous error %s" % e)
             except TicketNotPrinted as e:
-                print "The ticket does not seems to have been fully printed %s" % str(e)
+                print("The ticket does not seems to have been fully printed %s" % e)
             except NoStatusError as e:
-                print "Impossible to get the status of the printer %s" % str(e)
+                print("Impossible to get the status of the printer %s" % e)
             except Exception as e:
-                self.set_status('error', str(e))
-                errmsg = str(e) + '\n' + '-'*60+'\n' + traceback.format_exc() + '-'*60 + '\n'
-                _logger.error(errmsg);
+                self.set_status('error', e)
+                _logger.exception()
             finally:
                 if error:
                     self.queue.put((timestamp, task, data))
diff --git a/addons/hw_escpos/escpos/escpos.py b/addons/hw_escpos/escpos/escpos.py
index 09a228d8d2b..1299db9a553 100644
--- a/addons/hw_escpos/escpos/escpos.py
+++ b/addons/hw_escpos/escpos/escpos.py
@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 
+from __future__ import print_function
 import base64
 import copy
 import io
@@ -145,7 +146,7 @@ class StyleStack:
         _style = {}
         for attr in style:
             if attr in self.cmds and not style[attr] in self.cmds[attr]:
-                print 'WARNING: ESC/POS PRINTING: ignoring invalid value: '+utfstr(style[attr])+' for style: '+utfstr(attr)
+                print('WARNING: ESC/POS PRINTING: ignoring invalid value: %s for style %s' % (style[attr], utfstr(attr)))
             else:
                 _style[attr] = self.enforce_type(attr, style[attr])
         self.stack.append(_style)
@@ -155,7 +156,7 @@ class StyleStack:
         _style = {}
         for attr in style:
             if attr in self.cmds and not style[attr] in self.cmds[attr]:
-                print 'WARNING: ESC/POS PRINTING: ignoring invalid value: '+utfstr(style[attr])+' for style: '+utfstr(attr)
+                print('WARNING: ESC/POS PRINTING: ignoring invalid value: %s for style %s' % (style[attr], attr))
             else:
                 self.stack[-1][attr] = self.enforce_type(attr, style[attr])
 
@@ -383,7 +384,7 @@ class Escpos:
 
 
         if im.size[0] > 512:
-            print  "WARNING: Image is wider than 512 and could be truncated at print time "
+            print("WARNING: Image is wider than 512 and could be truncated at print time ")
         if im.size[1] > 255:
             raise ImageSizeError()
 
@@ -429,12 +430,12 @@ class Escpos:
 
     def print_base64_image(self,img):
 
-        print 'print_b64_img'
+        print('print_b64_img')
 
         id = md5.new(img).digest()
 
         if id not in self.img_cache:
-            print 'not in cache'
+            print('not in cache')
 
             img = img[img.find(',')+1:]
             f = io.BytesIO('img')
@@ -449,16 +450,16 @@ class Escpos:
             else:
                 img.paste(img_rgba)
 
-            print 'convert image'
+            print('convert image')
         
             pix_line, img_size = self._convert_image(img)
 
-            print 'print image'
+            print('print image')
 
             buffer = self._raw_print_image(pix_line, img_size)
             self.img_cache[id] = buffer
 
-        print 'raw image'
+        print('raw image')
 
         self._raw(self.img_cache[id])
 
diff --git a/addons/hw_escpos/escpos/printer.py b/addons/hw_escpos/escpos/printer.py
index e857fa2e365..52bf73396cf 100644
--- a/addons/hw_escpos/escpos/printer.py
+++ b/addons/hw_escpos/escpos/printer.py
@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+from __future__ import print_function
 import serial
 import socket
 import usb.core
@@ -170,9 +171,9 @@ class Serial(Escpos):
         self.device = serial.Serial(port=self.devfile, baudrate=self.baudrate, bytesize=self.bytesize, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=self.timeout, dsrdtr=True)
 
         if self.device is not None:
-            print "Serial printer enabled"
+            print("Serial printer enabled")
         else:
-            print "Unable to open serial printer on: %s" % self.devfile
+            print("Unable to open serial printer on: %s" % self.devfile)
 
 
     def _raw(self, msg):
@@ -206,7 +207,7 @@ class Network(Escpos):
         self.device.connect((self.host, self.port))
 
         if self.device is None:
-            print "Could not open socket for %s" % self.host
+            print("Could not open socket for %s" % self.host)
 
 
     def _raw(self, msg):
diff --git a/addons/hw_proxy/controllers/main.py b/addons/hw_proxy/controllers/main.py
index 91aee8708e8..f341ab7b9e0 100644
--- a/addons/hw_proxy/controllers/main.py
+++ b/addons/hw_proxy/controllers/main.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from __future__ import print_function
 import commands
 import logging
 import time
@@ -140,78 +141,78 @@ class Proxy(http.Controller):
         """
         A product has been scanned with success
         """
-        print 'scan_item_success: ' + str(ean)
+        print('scan_item_success: %s', ean)
 
     @http.route('/hw_proxy/scan_item_error_unrecognized', type='json', auth='none', cors='*')
     def scan_item_error_unrecognized(self, ean):
         """
         A product has been scanned without success
         """
-        print 'scan_item_error_unrecognized: ' + str(ean)
+        print('scan_item_error_unrecognized: %s', ean)
 
     @http.route('/hw_proxy/help_needed', type='json', auth='none', cors='*')
     def help_needed(self):
         """
         The user wants an help (ex: light is on)
         """
-        print "help_needed"
+        print("help_needed")
 
     @http.route('/hw_proxy/help_canceled', type='json', auth='none', cors='*')
     def help_canceled(self):
         """
         The user stops the help request
         """
-        print "help_canceled"
+        print("help_canceled")
 
     @http.route('/hw_proxy/payment_request', type='json', auth='none', cors='*')
     def payment_request(self, price):
         """
         The PoS will activate the method payment 
         """
-        print "payment_request: price:"+str(price)
+        print("payment_request: price:%s" % price)
         return 'ok'
 
     @http.route('/hw_proxy/payment_status', type='json', auth='none', cors='*')
     def payment_status(self):
-        print "payment_status"
+        print("payment_status")
         return { 'status':'waiting' } 
 
     @http.route('/hw_proxy/payment_cancel', type='json', auth='none', cors='*')
     def payment_cancel(self):
-        print "payment_cancel"
+        print("payment_cancel")
 
     @http.route('/hw_proxy/transaction_start', type='json', auth='none', cors='*')
     def transaction_start(self):
-        print 'transaction_start'
+        print('transaction_start')
 
     @http.route('/hw_proxy/transaction_end', type='json', auth='none', cors='*')
     def transaction_end(self):
-        print 'transaction_end'
+        print('transaction_end')
 
     @http.route('/hw_proxy/cashier_mode_activated', type='json', auth='none', cors='*')
     def cashier_mode_activated(self):
-        print 'cashier_mode_activated'
+        print('cashier_mode_activated')
 
     @http.route('/hw_proxy/cashier_mode_deactivated', type='json', auth='none', cors='*')
     def cashier_mode_deactivated(self):
-        print 'cashier_mode_deactivated'
+        print('cashier_mode_deactivated')
 
     @http.route('/hw_proxy/open_cashbox', type='json', auth='none', cors='*')
     def open_cashbox(self):
-        print 'open_cashbox'
+        print('open_cashbox')
 
     @http.route('/hw_proxy/print_receipt', type='json', auth='none', cors='*')
     def print_receipt(self, receipt):
-        print 'print_receipt' + str(receipt)
+        print('print_receipt %s', receipt)
 
     @http.route('/hw_proxy/is_scanner_connected', type='json', auth='none', cors='*')
     def is_scanner_connected(self, receipt):
-        print 'is_scanner_connected?' 
+        print('is_scanner_connected?')
         return False
 
     @http.route('/hw_proxy/scanner', type='json', auth='none', cors='*')
     def scanner(self, receipt):
-        print 'scanner' 
+        print('scanner')
         time.sleep(10)
         return ''
 
@@ -221,4 +222,4 @@ class Proxy(http.Controller):
 
     @http.route('/hw_proxy/print_pdf_invoice', type='json', auth='none', cors='*')
     def print_pdf_invoice(self, pdfinvoice):
-        print 'print_pdf_invoice' + str(pdfinvoice)
+        print('print_pdf_invoice %s' % pdfinvoice)
diff --git a/odoo/addons/base/ir/ir_qweb/ir_qweb.py b/odoo/addons/base/ir/ir_qweb/ir_qweb.py
index ddb1c64d73d..dc71f3304ab 100644
--- a/odoo/addons/base/ir/ir_qweb/ir_qweb.py
+++ b/odoo/addons/base/ir/ir_qweb/ir_qweb.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 import ast
 from urlparse import urlparse
 from lxml import html
@@ -166,7 +167,6 @@ class IrQWeb(models.AbstractModel, QWeb):
             try:
                 options = "{'widget': 'monetary'"
                 for k, v in json.loads(field_options).iteritems():
-                    print k, v
                     if k in ('display_currency', 'from_currency'):
                         options = "%s, '%s': %s" % (options, k, v)
                     else:
diff --git a/odoo/cli/command.py b/odoo/cli/command.py
index 75aa392fdfb..2ab042f58e8 100644
--- a/odoo/cli/command.py
+++ b/odoo/cli/command.py
@@ -1,3 +1,4 @@
+from __future__ import print_function
 import logging
 import sys
 import os
@@ -26,14 +27,14 @@ class Command(object):
 class Help(Command):
     """Display the list of available commands"""
     def run(self, args):
-        print "Available commands:\n"
+        print("Available commands:\n")
         names = commands.keys()
         padding = max([len(k) for k in names]) + 2
         for k in sorted(names):
             name = k.ljust(padding, ' ')
             doc = (commands[k].__doc__ or '').strip()
-            print "    %s%s" % (name, doc)
-        print "\nUse '%s <command> --help' for individual command help." % sys.argv[0].split(os.path.sep)[-1]
+            print("    %s%s" % (name, doc))
+        print("\nUse '%s <command> --help' for individual command help." % sys.argv[0].split(os.path.sep)[-1])
 
 def main():
     args = sys.argv[1:]
diff --git a/odoo/cli/deploy.py b/odoo/cli/deploy.py
index 2547ebdcd78..6e76cea7d45 100644
--- a/odoo/cli/deploy.py
+++ b/odoo/cli/deploy.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 import argparse
 import os
 import requests
diff --git a/odoo/cli/scaffold.py b/odoo/cli/scaffold.py
index 83c2befe96c..53d3b8df85a 100644
--- a/odoo/cli/scaffold.py
+++ b/odoo/cli/scaffold.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 import argparse
 import os
 import re
@@ -128,9 +129,9 @@ class template(object):
                        .dump(f, encoding='utf-8')
 
 def die(message, code=1):
-    print >>sys.stderr, message
+    print(message, file=sys.stderr)
     sys.exit(code)
 
 def warn(message):
     # ASK: shall we use logger ?
-    print "WARNING: " + message
+    print("WARNING:", message)
diff --git a/odoo/cli/shell.py b/odoo/cli/shell.py
index 1e847800956..320cf5aa3d4 100644
--- a/odoo/cli/shell.py
+++ b/odoo/cli/shell.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from __future__ import print_function
 import code
 import logging
 import os
@@ -44,7 +45,7 @@ class Console(code.InteractiveConsole):
             import readline
             import rlcompleter
         except ImportError:
-            print 'readline or rlcompleter not available, autocomplete disabled.'
+            print('readline or rlcompleter not available, autocomplete disabled.')
         else:
             readline.set_completer(rlcompleter.Completer(locals).complete)
             readline.parse_and_bind("tab: complete")
@@ -65,9 +66,9 @@ class Shell(Command):
             exec sys.stdin in local_vars
         else:
             if 'env' not in local_vars:
-                print 'No environment set, use `%s shell -d dbname` to get one.' % sys.argv[0]
+                print('No environment set, use `%s shell -d dbname` to get one.' % sys.argv[0])
             for i in sorted(local_vars):
-                print '%s: %s' % (i, local_vars[i])
+                print('%s: %s' % (i, local_vars[i]))
 
             preferred_interface = config.options.get('shell_interface')
             if preferred_interface:
diff --git a/odoo/cli/start.py b/odoo/cli/start.py
index 88df395eab5..c42494b60b1 100644
--- a/odoo/cli/start.py
+++ b/odoo/cli/start.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+from __future__ import print_function
 import argparse
 import glob
 import itertools
@@ -77,5 +78,5 @@ class Start(Command):
         main(cmdargs)
 
 def die(message, code=1):
-    print >>sys.stderr, message
+    print(message, file=sys.stderr)
     sys.exit(code)
diff --git a/odoo/tools/amount_to_text.py b/odoo/tools/amount_to_text.py
index 6916306bf99..40d374faf3c 100644
--- a/odoo/tools/amount_to_text.py
+++ b/odoo/tools/amount_to_text.py
@@ -6,6 +6,7 @@
 #-------------------------------------------------------------
 
 
+from __future__ import print_function
 to_19_fr = ( u'zéro',  'un',   'deux',  'trois', 'quatre',   'cinq',   'six',
           'sept', 'huit', 'neuf', 'dix',   'onze', 'douze', 'treize',
           'quatorze', 'quinze', 'seize', 'dix-sept', 'dix-huit', 'dix-neuf' )
@@ -163,19 +164,7 @@ def amount_to_text(nbr, lang='fr', currency='euro'):
     
     if lang not in _translate_funcs:
 #TODO: use logger   
-        print "WARNING: no translation function found for lang: '%s'" % (lang,)
+        print("WARNING: no translation function found for lang: '%s'" % (lang,))
 #TODO: (default should be en) same as above
         lang = 'fr'
     return _translate_funcs[lang](abs(nbr), currency)
-
-if __name__=='__main__':
-    from sys import argv
-    
-    lang = 'nl'
-    if len(argv) < 2:
-        for i in range(1,200):
-            print i, ">>", amount_to_text(i, lang)
-        for i in range(200,999999,139):
-            print i, ">>", amount_to_text(i, lang)
-    else:
-        print amount_to_text(int(argv[1]), lang)
diff --git a/odoo/tools/amount_to_text_en.py b/odoo/tools/amount_to_text_en.py
index c69e0204132..adfda4324b2 100644
--- a/odoo/tools/amount_to_text_en.py
+++ b/odoo/tools/amount_to_text_en.py
@@ -99,15 +99,3 @@ def amount_to_text(nbr, lang='en', currency='euro'):
         #TODO: (default should be en) same as above
         lang = 'en'
     return _translate_funcs[lang](abs(nbr), currency)
-
-if __name__=='__main__':
-    from sys import argv
-    
-    lang = 'nl'
-    if len(argv) < 2:
-        for i in range(1,200):
-            print i, ">>", int_to_text(i, lang)
-        for i in range(200,999999,139):
-            print i, ">>", int_to_text(i, lang)
-    else:
-        print int_to_text(int(argv[1]), lang)
diff --git a/odoo/tools/appdirs.py b/odoo/tools/appdirs.py
index bb46a9ee27e..a1650ba5aba 100644
--- a/odoo/tools/appdirs.py
+++ b/odoo/tools/appdirs.py
@@ -7,6 +7,7 @@
 
 See <http://github.com/ActiveState/appdirs> for details and usage.
 """
+from __future__ import print_function
 # Dev Notes:
 # - MSDN on where to store app data files:
 #   http://support.microsoft.com/default.aspx?scid=kb;en-us;310294#XSLTH3194121123120121120120
diff --git a/odoo/tools/float_utils.py b/odoo/tools/float_utils.py
index 127c546125f..959299e2c97 100644
--- a/odoo/tools/float_utils.py
+++ b/odoo/tools/float_utils.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from __future__ import print_function
 import math
 
 def _float_check_precision(precision_digits=None, precision_rounding=None):
@@ -207,7 +208,7 @@ if __name__ == "__main__":
                             precision_digits=precision_digits)
         if result != expected:
             errors += 1
-            print '###!!! Rounding error: got %s , expected %s' % (result, expected)
+            print('###!!! Rounding error: got %s , expected %s' % (result, expected))
 
     # Extended float range test, inspired by Cloves Almeida's test on bug #882036.
     fractions = [.0, .015, .01499, .675, .67499, .4555, .4555, .45555]
@@ -229,4 +230,4 @@ if __name__ == "__main__":
     # 47130 round calls in 0.422306060791 secs, with Python 2.6.7 on Core i3 x64
     # with decimal:
     # 47130 round calls in 6.612248100021 secs, with Python 2.6.7 on Core i3 x64
-    print count, " round calls, ", errors, "errors, done in ", (stop-start), 'secs'
+    print(count, " round calls, ", errors, "errors, done in ", (stop-start), 'secs')
diff --git a/odoo/tools/parse_version.py b/odoo/tools/parse_version.py
index 997590f9b35..348fb3664a6 100644
--- a/odoo/tools/parse_version.py
+++ b/odoo/tools/parse_version.py
@@ -4,6 +4,7 @@
 ## this functions are taken from the setuptools package (version 0.6c8)
 ## http://peak.telecommunity.com/DevCenter/PkgResources#parsing-utilities
 
+from __future__ import print_function
 import re
 
 component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
@@ -69,7 +70,7 @@ if __name__ == '__main__':
                 pv = parse_version(v)
                 pvs.append(pv)
                 if verbose:
-                    print v, pv
+                    print(v, pv)
 
             for a, b in zip(pvs, pvs[1:]):
                 assert a < b, '%s < %s == %s' % (a, b, a < b)