py2/py3: async is a reserved word in Python 3.7 or later.

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/AccountingTransactionLine_resetGroupingReference.py

 """Resets grouping reference on this line and all related lines.
 
-This runs by default asynchronously, but can be call with `async=False` to
-run synchronously and returns the list of ungrouped lines. With `async=True`,
+This runs by default asynchronoushronously, but can be call with `asynchronous=False` to
+run synchronously and returns the list of ungrouped lines. With `asynchronous=True`,
 the returned list is always empty.
 """
 
@@ -13,7 +13,7 @@ if not context.getGroupingReference():
 portal = context.getPortalObject()
 
 resetGroupingReference = portal.ERP5Site_resetAccountingTransactionLineGroupingReference
-if async:
+if asynchronous:
   resetGroupingReference = portal.portal_simulation.activate(
       activity='SQLQueue',
       after_tag='accounting_grouping_reference'

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/AccountingTransactionLine_resetGroupingReference.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>async=True</string> </value>
+            <value> <string>asynchronous=True</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/AccountingTransactionModule_setGroupingReference.py

@@ -121,7 +121,7 @@ else:
     if line.getGroupingReference():
       # Call AccountingTransactionLine_resetGroupingReference synchronously
       # to know the number of ungrouped lines.
-      ungrouped_line_list.extend(line.AccountingTransactionLine_resetGroupingReference(async=False))
+      ungrouped_line_list.extend(line.AccountingTransactionLine_resetGroupingReference(asynchronous=False))
 
   portal_status_message = Base_translateString('${ungrouped_line_count} lines ungrouped.',
                              mapping=dict(ungrouped_line_count=len(ungrouped_line_list)))

bt5/erp5_accounting/TestTemplateItem/portal_components/test.erp5.testAccounting.py

@@ -3907,7 +3907,7 @@ class TestTransactions(AccountingTestCase):
 
     # reset from the payment line, the invoice line from the same group will be
     # ungrouped
-    payment_line.AccountingTransactionLine_resetGroupingReference(async=False)
+    payment_line.AccountingTransactionLine_resetGroupingReference(asynchronous=False)
     self.assertFalse(payment_line.getGroupingReference())
     self.assertFalse(payment_line.getGroupingDate())
     self.assertFalse(invoice_line.getGroupingReference())