style(python): adapt code base to the new black version (reanahub#670)

Author: tiborsimko

reana_workflow_controller/dask.py

@@ -5,6 +5,7 @@
 # under the terms of the MIT License; see LICENSE file for more details.
 
 """Dask resource manager."""
+
 import logging
 import os
 import yaml

reana_workflow_controller/rest/workflows_session.py

@@ -8,7 +8,6 @@
 
 """REANA Workflow Controller interactive sessions REST API."""
 
-
 from flask import Blueprint, jsonify, request
 from webargs import fields
 from webargs.flaskparser import use_kwargs
@@ -18,7 +17,6 @@
 
 from reana_workflow_controller.workflow_run_manager import KubernetesWorkflowRunManager
 
-
 blueprint = Blueprint("workflows_session", __name__)
 
 

reana_workflow_controller/workflow_run_manager.py

@@ -5,6 +5,7 @@
 # under the terms of the MIT License; see LICENSE file for more details.
 
 """Workflow run manager interface."""
+
 import base64
 import copy
 import json

tests/test_utils.py

@@ -119,7 +119,7 @@ def test_delete_workflow_with_interactive_session(
         "reana_workflow_controller.k8s",
         current_k8s_networking_api_client=mock.DEFAULT,
     ):
-        (response, http_response) = delete_workflow(workflow)
+        response, http_response = delete_workflow(workflow)
         data = json.loads(response.get_data())
         assert "Workflow successfully deleted" in data["message"]
         assert http_response == 200