fixed linting and tests

cellxgene_gateway/cache_entry.py

@@ -168,9 +168,8 @@ class CacheEntry:
                 headers[h] = request.headers[h]
 
         full_path = self.cellxgene_basepath() + subpath + querystring()
-
+        cellxgene_response = None
         try:
-            cellxgene_response = None
             if request.method in ["GET", "HEAD", "OPTIONS"]:
                 cellxgene_response = get(full_path, headers=headers)
             elif request.method == "PUT":

cellxgene_gateway/gateway.py

@@ -332,11 +332,13 @@ def launch():
     app.launchtime = current_time_stamp()
     app.run(host="0.0.0.0", port=env.gateway_port, debug=False)
 
+
 # When using servers like Gunicorn or uWSGI, this file is imported rather than run directly.
 # As a result, the main() function is never called automatically.
 # Therefore, we must initialize the data sources at import time to ensure they are available.
 initialize_data_sources()
 
+
 def main():
     """CLI entry point for Flask development server."""
     launch()