diff --git a/easy_my_coop/models/account_invoice.py b/easy_my_coop/models/account_invoice.py
index acb64e6..28c8783 100644
--- a/easy_my_coop/models/account_invoice.py
+++ b/easy_my_coop/models/account_invoice.py
@@ -16,7 +16,7 @@ class account_invoice(models.Model):
     def _prepare_refund(self, invoice, date_invoice=None, date=None,
                         description=None, journal_id=None):
         values = super(account_invoice, self)._prepare_refund(
-                                        invoice, date_invoice, date, 
+                                        invoice, date_invoice, date,
                                         description, journal_id)
         values['release_capital_request'] = self.release_capital_request
 
@@ -24,16 +24,15 @@ class account_invoice(models.Model):
 
     def set_cooperator_effective(self, effective_date):
         # flag the partner as a effective member
-        obj_sequence = self.env['ir.sequence']
-
         mail_template_id = 'easy_my_coop.email_template_certificat'
 
         # if not yet cooperator we generate a cooperator number
         if self.partner_id.member is False and self.partner_id.old_member is False:
             sequence_id = self.env.ref('easy_my_coop.sequence_subscription', False)
             sub_reg_num = sequence_id.next_by_id()
-            self.partner_id.write({'member': True, 'old_member': False,
-                                   'cooperator_register_number': int(sub_reg_num)})
+            self.partner_id.write({
+                'member': True, 'old_member': False,
+                'cooperator_register_number': int(sub_reg_num)})
         elif self.partner_id.old_member:
             self.partner_id.write({'member': True, 'old_member': False})
         else:
@@ -42,24 +41,25 @@ class account_invoice(models.Model):
         sub_reg_operation = sequence_operation.next_by_id()
 
         for line in self.invoice_line_ids:
-            sub_reg = self.env['subscription.register'].create(
-                               {'name': sub_reg_operation,
-                                'register_number_operation': int(sub_reg_operation),
-                                'partner_id': self.partner_id.id,
-                                'quantity': line.quantity,
-                                'share_product_id': line.product_id.id,
-                                'share_unit_price': line.price_unit,
-                                'date': effective_date,
-                                'type': 'subscription'})
-            self.env['share.line'].create({'share_number': line.quantity,
-                                           'share_product_id': line.product_id.id,
-                                           'partner_id': self.partner_id.id,
-                                           'share_unit_price': line.price_unit,
-                                           'effective_date': effective_date})
-
-        email_template_obj = self.env['mail.template']
+            self.env['subscription.register'].create({
+                'name': sub_reg_operation,
+                'register_number_operation': int(sub_reg_operation),
+                'partner_id': self.partner_id.id,
+                'quantity': line.quantity,
+                'share_product_id': line.product_id.id,
+                'share_unit_price': line.price_unit,
+                'date': effective_date,
+                'type': 'subscription'})
+
+            self.env['share.line'].create({
+                'share_number': line.quantity,
+                'share_product_id': line.product_id.id,
+                'partner_id': self.partner_id.id,
+                'share_unit_price': line.price_unit,
+                'effective_date': effective_date
+                })
+
         certificat_email_template = self.env.ref(mail_template_id, False)
-        #certificat_email_template = email_template_obj.search([('name', '=', mail_template_name)])[0]
         # we send the email with the certificat in attachment
         certificat_email_template.send_mail(self.partner_id.id, False)
 
@@ -73,16 +73,16 @@ class account_invoice(models.Model):
     @api.multi
     def confirm_paid(self):
         for invoice in self:
-            #self.env.cr.commit()
             super(account_invoice, invoice).confirm_paid()
-            # we check if there is an open refund for this invoice. in this case we
-            # don't run the process_subscription function as the invoice has been 
-            # reconciled with a refund and not a payment.
-            refund = self.search([('type', '=', 'out_refund'), ('origin', '=', invoice.move_name)])
+            # we check if there is an open refund for this invoice. in this
+            # case we don't run the process_subscription function as the
+            # invoice has been reconciled with a refund and not a payment.
+            refund = self.search([('type', '=', 'out_refund'),
+                                  ('origin', '=', invoice.move_name)])
 
             if invoice.partner_id.cooperator and invoice.release_capital_request \
-                and invoice.type == 'out_invoice' and not refund:
-                # take the effective date from the payment. 
+                    and invoice.type == 'out_invoice' and not refund:
+                # take the effective date from the payment.
                 # by default the confirmation date is the payment date
                 effective_date = datetime.now().strftime("%d/%m/%Y")
 
@@ -94,6 +94,6 @@ class account_invoice(models.Model):
                 invoice.post_process_confirm_paid(effective_date)
             # if there is a open refund we mark the subscription as cancelled
             elif invoice.partner_id.cooperator and invoice.release_capital_request \
-                and invoice.type == 'out_invoice' and refund:
+                    and invoice.type == 'out_invoice' and refund:
                 invoice.subscription_request.state = 'cancelled'
         return True