Check doctest files

They are converted to python files before running checks.

modules/account_dunning/tests/scenario_account_dunning.rst

@@ -5,15 +5,17 @@ Account Dunning Scenario
 Imports::
 
     >>> import datetime
-    >>> from dateutil.relativedelta import relativedelta
     >>> from decimal import Decimal
+
+    >>> from dateutil.relativedelta import relativedelta
+
     >>> from proteus import Model, Wizard
+    >>> from trytond.modules.account.tests.tools import (
+    ...     create_chart, create_fiscalyear, get_accounts)
+    >>> from trytond.modules.company.tests.tools import create_company, get_company
     >>> from trytond.tests.tools import (
-    ...     activate_modules, set_user, assertEqual, assertTrue)
-    >>> from trytond.modules.company.tests.tools import create_company, \
-    ...     get_company
-    >>> from trytond.modules.account.tests.tools import create_fiscalyear, \
-    ...     create_chart, get_accounts
+    ...     activate_modules, assertEqual, assertTrue, set_user)
+
     >>> today = datetime.date.today()
 
 Activate modules::

modules/account_dunning/tests/scenario_account_dunning_final.rst

@@ -6,12 +6,12 @@ Imports::
 
     >>> import datetime as dt
     >>> from decimal import Decimal
+
     >>> from proteus import Model, Wizard
-    >>> from trytond.tests.tools import activate_modules, set_user
-    >>> from trytond.modules.company.tests.tools import create_company, \
-    ...     get_company
-    >>> from trytond.modules.account.tests.tools import create_fiscalyear, \
-    ...     create_chart, get_accounts
+    >>> from trytond.modules.account.tests.tools import (
+    ...     create_chart, create_fiscalyear, get_accounts)
+    >>> from trytond.modules.company.tests.tools import create_company, get_company
+    >>> from trytond.tests.tools import activate_modules
 
 Activate modules::