Update app.py

app.py

@@ -14,12 +14,26 @@ repo_id="wintergw/assignment_opt_gurobi",
 repo_type="space",
 cache_dir="private_space_cache"
 )
+
+
+#if you call functions from another file “importing files as modules”
+functions = hf_hub_download(
+    repo_id="wintergw/assignment_opt_gurobi",
+    filename="optmodel.py",
+    repo_type="space",
+)
+spec = importlib.util.spec_from_file_location("*", functions)
+foo = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(foo)
+
+
 # calling the app code
 app = hf_hub_download(
 repo_id="wintergw/assignment_opt_gurobi",
 filename="app.py",
 repo_type="space"
 )
+
 # executing the app file 
 spec_app = importlib.util.spec_from_file_location("*",app)
 app = importlib.util.module_from_spec(spec_app)