diff --git a/account_analytic_analysis_recurring/__init__.py b/account_analytic_analysis_recurring/__init__.py
index 7088b5aa..41ecc2ad 100644
--- a/account_analytic_analysis_recurring/__init__.py
+++ b/account_analytic_analysis_recurring/__init__.py
@@ -19,4 +19,4 @@
 #
 ##############################################################################
 
-import account_analytic_analysis_recurring
+from . import account_analytic_analysis_recurring
diff --git a/account_analytic_analysis_recurring/account_analytic_analysis_recurring.py b/account_analytic_analysis_recurring/account_analytic_analysis_recurring.py
index f6f0d71e..6464c7c6 100644
--- a/account_analytic_analysis_recurring/account_analytic_analysis_recurring.py
+++ b/account_analytic_analysis_recurring/account_analytic_analysis_recurring.py
@@ -93,7 +93,7 @@ class account_analytic_invoice_line(osv.osv):
              'uom_id': uom_id or res.uom_id.id or False,
              'price_unit': res.list_price or 0.0})
         if res.description:
-            result['name'] += '\n'+res.description
+            result['name'] += '\n' + res.description
 
         res_final = {'value': result}
         if result['uom_id'] != res.uom_id.id:
@@ -237,14 +237,14 @@ class account_analytic_account(osv.osv):
                 contract.recurring_next_date or current_date, "%Y-%m-%d")
             interval = contract.recurring_interval
             if contract.recurring_rule_type == 'daily':
-                old_date = next_date-relativedelta(days=+interval)
-                new_date = next_date+relativedelta(days=+interval)
+                old_date = next_date - relativedelta(days=+interval)
+                new_date = next_date + relativedelta(days=+interval)
             elif contract.recurring_rule_type == 'weekly':
-                old_date = next_date-relativedelta(weeks=+interval)
-                new_date = next_date+relativedelta(weeks=+interval)
+                old_date = next_date - relativedelta(weeks=+interval)
+                new_date = next_date + relativedelta(weeks=+interval)
             else:
-                old_date = next_date+relativedelta(months=+interval)
-                new_date = next_date+relativedelta(months=+interval)
+                old_date = next_date + relativedelta(months=+interval)
+                new_date = next_date + relativedelta(months=+interval)
 
             context['old_date'] = old_date
             context['next_date'] = datetime.datetime.strptime(
diff --git a/analytic_hours_block/__init__.py b/analytic_hours_block/__init__.py
index 81ba8d05..8f227222 100644
--- a/analytic_hours_block/__init__.py
+++ b/analytic_hours_block/__init__.py
@@ -18,7 +18,7 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
-import hours_block
-import report
-import product
-import project
+from . import hours_block
+from . import report
+from . import product
+from . import project
diff --git a/analytic_hours_block/__openerp__.py b/analytic_hours_block/__openerp__.py
index 6dc08a38..29a0c7cc 100644
--- a/analytic_hours_block/__openerp__.py
+++ b/analytic_hours_block/__openerp__.py
@@ -42,7 +42,7 @@ you can track and follow how much has been used.
         "hr_timesheet_invoice",
         "analytic",
         "project",
-        ],
+    ],
     "data": [
         "report.xml",
         "hours_block_view.xml",
@@ -53,7 +53,7 @@ you can track and follow how much has been used.
         "report.xml",
         "security/hours_block_security.xml",
         "security/ir.model.access.csv",
-        ],
+    ],
     "active": False,
     "installable": True
 }
diff --git a/analytic_hours_block/hours_block.py b/analytic_hours_block/hours_block.py
index e29c5a6b..c31569a9 100644
--- a/analytic_hours_block/hours_block.py
+++ b/analytic_hours_block/hours_block.py
@@ -94,7 +94,7 @@ class AccountHoursBlock(orm.Model):
             for line in block.invoice_id.invoice_line:
                 amount_bought = 0.0
                 if line.product_id:
-                    ## We will now calculate the product_quantity
+                    # We will now calculate the product_quantity
                     factor = line.uos_id.factor
                     if factor == 0.0:
                         factor = 1.0
@@ -103,7 +103,8 @@ class AccountHoursBlock(orm.Model):
                 result[block.id]['amount_hours_block'] += amount_bought
 
             # Compute total amount
-            # Get ids of analytic line generated from timesheet associated to current block
+            # Get ids of analytic line generated from timesheet associated to
+            # current block
             cr.execute("SELECT al.id FROM account_analytic_line AS al,"
                        " account_analytic_journal AS aj"
                        " WHERE aj.id = al.journal_id"
@@ -119,12 +120,12 @@ class AccountHoursBlock(orm.Model):
 
                 ctx = dict(context, uom=line.product_uom_id.id)
                 amount = pricelist_obj.price_get(
-                        cr, uid,
-                        [line.account_id.pricelist_id.id],
-                        line.product_id.id,
-                        line.unit_amount or 1.0,
-                        line.account_id.partner_id.id or False,
-                        ctx)[line.account_id.pricelist_id.id]
+                    cr, uid,
+                    [line.account_id.pricelist_id.id],
+                    line.product_id.id,
+                    line.unit_amount or 1.0,
+                    line.account_id.partner_id.id or False,
+                    ctx)[line.account_id.pricelist_id.id]
                 total_amount += amount * line.unit_amount * factor_invoicing
             result[block.id]['amount_hours_block_done'] += total_amount
 
@@ -139,7 +140,8 @@ class AccountHoursBlock(orm.Model):
         for block_type in block_per_types:
             if block_type:
                 func = getattr(self, "_compute_%s" % block_type)
-                result.update(func(cr, uid, ids, fields, args, context=context))
+                result.update(
+                    func(cr, uid, ids, fields, args, context=context))
 
         for block in result:
             result[block]['amount_hours_block_delta'] = \
@@ -155,13 +157,14 @@ class AccountHoursBlock(orm.Model):
             if line.invoice_id:
                 invoice_ids.append(line.invoice_id.id)
         return block_obj.search(
-                cr, uid, [('invoice_id', 'in', invoice_ids)], context=context)
+            cr, uid, [('invoice_id', 'in', invoice_ids)], context=context)
 
     def _get_invoice(self, cr, uid, ids, context=None):
         block_ids = set()
         inv_obj = self.pool.get('account.invoice')
         for invoice in inv_obj.browse(cr, uid, ids, context=context):
-            block_ids.update([inv.id for inv in invoice.account_hours_block_ids])
+            block_ids.update(
+                [inv.id for inv in invoice.account_hours_block_ids])
         return list(block_ids)
 
     def action_send_block(self, cr, uid, ids, context=None):
@@ -206,7 +209,7 @@ class AccountHoursBlock(orm.Model):
 
     _recompute_triggers = {
         'account.hours.block': (lambda self, cr, uid, ids, c=None:
-                                    ids, ['invoice_id', 'type'], 10),
+                                ids, ['invoice_id', 'type'], 10),
         'account.invoice': (_get_invoice, ['analytic_line_ids'], 10),
         'account.analytic.line': (
             _get_analytic_line,
@@ -381,15 +384,15 @@ class AccountHoursBlock(orm.Model):
             readonly=True),
         'department_id': fields.related(
             'invoice_id', 'department_id',
-             type='many2one',
-             relation='hr.department',
-             string='Department',
+            type='many2one',
+            relation='hr.department',
+            string='Department',
             store={
                 'account.hours.block': (lambda self, cr, uid, ids, c=None: ids,
                                         ['invoice_id'], 10),
                 'account.invoice': (_get_invoice, ['department_id'], 10),
             },
-             readonly=True),
+            readonly=True),
 
         'state': fields.related(
             'invoice_id', 'state',
@@ -413,7 +416,7 @@ class AccountHoursBlock(orm.Model):
 
 
 ############################################################################
-## Add hours blocks on invoice
+# Add hours blocks on invoice
 ############################################################################
 class AccountInvoice(orm.Model):
     _inherit = 'account.invoice'
diff --git a/analytic_hours_block/project.py b/analytic_hours_block/project.py
index 8c014ca5..67f2e758 100644
--- a/analytic_hours_block/project.py
+++ b/analytic_hours_block/project.py
@@ -9,18 +9,21 @@ class project_project(orm.Model):
     def hours_block_tree_view(self, cr, uid, ids, context):
         invoice_line_obj = self.pool.get('account.invoice.line')
         hours_block_obj = self.pool.get('account.hours.block')
-        project = self.browse(cr, uid , ids)[0]
-        invoice_line_ids = invoice_line_obj.search(cr, uid, [('account_analytic_id', '=', project.analytic_account_id.id)])
-        invoice_lines =  invoice_line_obj.browse(cr, uid, invoice_line_ids)
+        project = self.browse(cr, uid, ids)[0]
+        invoice_line_ids = invoice_line_obj.search(
+            cr, uid, [('account_analytic_id', '=', project.analytic_account_id.id)])
+        invoice_lines = invoice_line_obj.browse(cr, uid, invoice_line_ids)
         invoice_ids = [x.invoice_id.id for x in invoice_lines]
-        res_ids = hours_block_obj.search(cr, uid, [('invoice_id','in',invoice_ids)])
-        domain=False
+        res_ids = hours_block_obj.search(
+            cr, uid, [('invoice_id', 'in', invoice_ids)])
+        domain = False
         if res_ids:
             domain = [('id', 'in', res_ids)]
         else:
-            raise orm.except_orm(_('Warning'), _("No Hours Block for this project"))
+            raise orm.except_orm(
+                _('Warning'), _("No Hours Block for this project"))
 
-        return  {
+        return {
             'name': _('Hours Blocks'),
             'domain': domain,
             'res_model': 'account.hours.block',
@@ -29,5 +32,5 @@ class project_project(orm.Model):
             'view_mode': 'tree,form',
             'view_type': 'form',
             'limit': 80,
-            'res_id' : res_ids or False,
+            'res_id': res_ids or False,
         }
diff --git a/analytic_hours_block/report/__init__.py b/analytic_hours_block/report/__init__.py
index 111d0eb4..91d0e5aa 100644
--- a/analytic_hours_block/report/__init__.py
+++ b/analytic_hours_block/report/__init__.py
@@ -18,4 +18,4 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
-import hours_block
+from . import hours_block
diff --git a/analytic_hours_block/report/hours_block.py b/analytic_hours_block/report/hours_block.py
index 02045eea..6a5a945b 100644
--- a/analytic_hours_block/report/hours_block.py
+++ b/analytic_hours_block/report/hours_block.py
@@ -25,8 +25,10 @@ from openerp.tools import DEFAULT_SERVER_DATE_FORMAT
 
 
 class account_hours_block(report_sxw.rml_parse):
+
     def __init__(self, cr, uid, name, context=None):
-        super(account_hours_block, self).__init__(cr, uid, name, context=context)
+        super(account_hours_block, self).__init__(
+            cr, uid, name, context=context)
         self.localcontext.update({'time': time,
                                   'date_format': DEFAULT_SERVER_DATE_FORMAT,
                                   'analytic_lines': self._get_analytic_lines,
diff --git a/project_sla/__init__.py b/project_sla/__init__.py
index 9ea8fe78..3f5d438f 100644
--- a/project_sla/__init__.py
+++ b/project_sla/__init__.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-import project_sla
-import analytic_account
-import project_sla_control
-import project_issue
+from . import project_sla
+from . import analytic_account
+from . import project_sla_control
+from . import project_issue
diff --git a/project_sla/analytic_account.py b/project_sla/analytic_account.py
index fcfbb13f..44d95a4a 100644
--- a/project_sla/analytic_account.py
+++ b/project_sla/analytic_account.py
@@ -22,12 +22,13 @@ from openerp.osv import fields, orm
 
 
 class AnalyticAccount(orm.Model):
+
     """ Add SLA to Analytic Accounts """
     _inherit = 'account.analytic.account'
     _columns = {
         'sla_ids': fields.many2many(
             'project.sla', string='Service Level Agreement'),
-        }
+    }
 
     def _reapply_sla(self, cr, uid, ids, recalc_closed=False, context=None):
         """
diff --git a/project_sla/project_issue.py b/project_sla/project_issue.py
index 9800f47a..fd657158 100644
--- a/project_sla/project_issue.py
+++ b/project_sla/project_issue.py
@@ -22,6 +22,7 @@ from openerp.osv import orm
 
 
 class ProjectIssue(orm.Model):
+
     """
     Extend Project Issues to be SLA Controlled
     """
diff --git a/project_sla/project_sla.py b/project_sla/project_sla.py
index 78978bb3..f812986a 100644
--- a/project_sla/project_sla.py
+++ b/project_sla/project_sla.py
@@ -22,6 +22,7 @@ from openerp.osv import fields, orm
 
 
 class SLADefinition(orm.Model):
+
     """
     SLA Definition
     """
@@ -40,10 +41,10 @@ class SLADefinition(orm.Model):
             'project.sla.line', 'sla_id', 'Definitions'),
         'analytic_ids': fields.many2many(
             'account.analytic.account', string='Contracts'),
-        }
+    }
     _defaults = {
         'active': True,
-        }
+    }
 
     def _reapply_slas(self, cr, uid, ids, recalc_closed=False, context=None):
         """
@@ -64,6 +65,7 @@ class SLADefinition(orm.Model):
 
 
 class SLARules(orm.Model):
+
     """
     SLA Definition Rule Lines
     """
@@ -80,7 +82,7 @@ class SLARules(orm.Model):
             "either o, obj or object. Example: obj.priority <= '2'"),
         'limit_qty': fields.integer('Hours to Limit'),
         'warn_qty': fields.integer('Hours to Warn'),
-        }
+    }
     _defaults = {
         'sequence': 10,
-        }
+    }
diff --git a/project_sla/project_sla_control.py b/project_sla/project_sla_control.py
index d807a36b..613978c7 100644
--- a/project_sla/project_sla_control.py
+++ b/project_sla/project_sla_control.py
@@ -24,7 +24,7 @@ from openerp.tools.misc import DEFAULT_SERVER_DATETIME_FORMAT as DT_FMT
 from openerp import SUPERUSER_ID
 from datetime import timedelta
 from datetime import datetime as dt
-import m2m
+from . import m2m
 
 import logging
 _logger = logging.getLogger(__name__)
@@ -56,6 +56,7 @@ def safe_getattr(obj, dotattr, default=False):
 
 
 class SLAControl(orm.Model):
+
     """
     SLA Control Registry
     Each controlled document (Issue, Claim, ...) will have a record here.
@@ -80,7 +81,7 @@ class SLAControl(orm.Model):
             help="Safeguard manual changes from future automatic "
                  "recomputations."),
             # Future: perfect SLA manual handling
-        }
+    }
 
     def write(self, cr, uid, ids, vals, context=None):
         """
@@ -285,6 +286,7 @@ class SLAControl(orm.Model):
 
 
 class SLAControlled(orm.AbstractModel):
+
     """
     SLA Controlled documents: AbstractModel to apply SLA control on Models
     """
@@ -295,7 +297,7 @@ class SLAControlled(orm.AbstractModel):
             'project.sla.control', string="SLA Control", ondelete='cascade'),
         'sla_state': fields.selection(
             SLA_STATES, string="SLA Status", readonly=True),
-        }
+    }
 
     def create(self, cr, uid, vals, context=None):
         res = super(SLAControlled, self).create(cr, uid, vals, context=context)