client: coding style

client/Localization.py

 LOCALIZATION = {
-    "due_by": "Due by",
-    "done": "Done",
-    "done_at": "Done at",
-    "error_general": "An error occured",
-    "error_param_invalid": "ERROR: parameter is not numeric or less than 1",
-    "error_roadmap_not_existing": "ERROR: no roadmap with this ID existing",
-    "error_milestone_not_existing": "ERROR: no milestone with this ID existing",
-    "error_task_not_existing": "ERROR: no task with this ID existing",
-    "error_subtask_not_existing": "ERROR: no subtask with this ID existing",
-    "error_no_milestones": "ERROR: no milestones for this roadmap",
-    "unauthorized": "Invalid password"
+    'due_by': 'Due by',
+    'done': 'Done',
+    'done_at': 'Done at',
+    'error_general': 'An error occured',
+    'error_param_invalid': 'ERROR: parameter is not numeric or less than 1',
+    'error_roadmap_not_existing': 'ERROR: no roadmap with this ID existing',
+    'error_milestone_not_existing': 'ERROR: no milestone with this ID existing',
+    'error_task_not_existing': 'ERROR: no task with this ID existing',
+    'error_subtask_not_existing': 'ERROR: no subtask with this ID existing',
+    'error_no_milestones': 'ERROR: no milestones for this roadmap',
+    'unauthorized': 'Invalid password'
 }
\ No newline at end of file

client/blueprints/Authentication.py

@@ -25,11 +25,11 @@ def construct_blueprint(urlBuilder):
             return render_template('login.html', message=LOCALIZATION['unauthorized'])
 
         if response.status_code == 200:
-            token = response.json()["access_token"]
+            token = response.json()['access_token']
             session['session_token'] = token
             return redirect(url_for('admin_roadmaps.overview'))
 
-        return render_template('error.html', message=response.json()["msg"])
+        return render_template('error.html', message=response.json()['msg'])
 
     @authentication.route('/admin/logout')
     def logout():