Update app.py

app.py

@@ -1,11 +1,18 @@
+import os 
+os.system('pwd')
 
 try:
     from dotenv import load_dotenv
 except ImportError:
-    os.system("pip install -e .")
     os.system('pip install -e third_party/voxelize/.')
     from dotenv import load_dotenv
 
+try:
+    from dotenv import load_dotenv
+except ImportError:
+    os.system("pip install -e .")
+    from dotenv import load_dotenv 
+    
 import torch
 import trimesh
 import datetime