remove f strings

pybossa/jobs.py

@@ -969,7 +969,7 @@ def export_tasks(current_user_email_addr, short_name,
                 msg = '<p>Your export exceeded the maximum file upload size. ' + \
                     'Please try again with a smaller subset of tasks'
             elif len(content) > max_email_size and bucket_name:
-                current_app.logger.info(f"uploading exporting tasks to s3 for project {project.id}")
+                current_app.logger.info("uploading exporting tasks to s3 for project, %s", project.id)
                 conn_kwargs = current_app.config.get('S3_EXPORT_CONN', {})
                 conn = create_connection(**conn_kwargs)
                 bucket = conn.get_bucket(bucket_name, validate=False)
@@ -978,14 +978,14 @@ def export_tasks(current_user_email_addr, short_name,
                 key.set_contents_from_string(content)
                 expires_in = current_app.config.get('EXPORT_EXPIRY', 12 * 3600)
                 url = key.generate_url(expires_in)
-                current_app.logger.info(f"uploading to s3 done for project {project.id}")
+                current_app.logger.info("uploading to s3 done for project %s", project.id)
                 msg = '<p>You can download your file <a href="{}">here</a>.</p>'.format(url)
             else:
                 msg = '<p>Your exported data is attached.</p>'
                 mail_dict['attachments'] = [Attachment(filename, "application/zip", content)]
 
             current_app.logger.info(
-                'Tasks export completed - Project: {0}'.format(project.name))
+                'Tasks export completed - Project: %s', project.name)
         else:
             # Failure email
             mail_dict['subject'] = 'Data export failed for your project: {0}'.format(project.name)
@@ -1000,14 +1000,14 @@ def export_tasks(current_user_email_addr, short_name,
         message = Message(**mail_dict)
         mail.send(message)
         current_app.logger.info(
-            'Email sent successfully - Project: {0}'.format(project.name))
+            'Email sent successfully - Project: %s', project.name)
         job_response = '{0} {1} file was successfully exported for: {2}'
         return job_response.format(
                 ty.capitalize(), filetype.upper(), project.name)
     except Exception as e:
         current_app.logger.exception(
-                'Export email failed - Project: {0}, exception: {1}'
-                .format(project.name, str(e)))
+                'Export email failed - Project: %s, exception: %s',
+                project.name, str(e))
         subject = 'Email delivery failed for your project: {0}'.format(project.name)
         msg = 'There was an error when attempting to deliver your data export via email.'
         body = 'Hello,\n\n' + msg + '\n\nThe {0} team.'