[FIX] flake8

sql_export/sql_export.py

@@ -20,7 +20,7 @@
 ##############################################################################
 
 import re
-from openerp import models, fields, api, _, exceptions
+from openerp import models, fields, api
 
 
 class SqlExport(models.Model):

sql_export/wizard/wizard_file.py

@@ -97,10 +97,10 @@ class SqlFileWizard(models.TransientModel):
             output.close()
         finally:
             self.env.cr.execute("ROLLBACK TO SAVEPOINT %s" % name)
-        wiz = self.write(
-            {
+        self.write({
             'binary_file': new_output,
-                'file_name': sql_export.name + '_' + date + '.csv'})
+            'file_name': sql_export.name + '_' + date + '.csv'
+        })
         if not sql_export.valid:
             sql_export.sudo().valid = True
         return {