Update app.py

app.py

@@ -34,7 +34,7 @@ tab1, tab2, tab3, tab4, tab5 = st.tabs(
 
 with tab1:
     # Logging in to Hopsworks and loading the feature store
-    project = hopsworks.login(project="miknie20", api_key_value=os.getenv('HOPSWORKS_API_KEY'))
+    project = hopsworks.login(project="miknie20", api_key_value=os.environ['HOPSWORKS_API_KEY'])
     fs = project.get_feature_store()
 
     col1, col2 = st.columns(2)