Update app.py

app.py

@@ -240,8 +240,8 @@ def run_pipeline(image_array, request: gr.Request):
 def cleanup(request: gr.Request):
     sid = request.session_hash
     if sid:
-        d1 = os.path.join(env["PIXEL3DMM_PREPROCESSED_DATA"], sid)
-        d2 = os.path.join(env["PIXEL3DMM_TRACKING_OUTPUT"], sid)
+        d1 = os.path.join(os.environ["PIXEL3DMM_PREPROCESSED_DATA"], sid)
+        d2 = os.path.join(os.environ["PIXEL3DMM_TRACKING_OUTPUT"], sid)
         shutil.rmtree(d1, ignore_errors=True)
         shutil.rmtree(d2, ignore_errors=True)