fix import FaceSym

app.py

@@ -47,7 +47,7 @@ for f in os.listdir("data"):
     known_persons.append(os.path.basename(f))
 
 import tempfile
-from face_symmetrizer import FaceSym
+from FaceSym import FaceSym
 
 def left_right_sim(img):
     tmpf = tempfile.NamedTemporaryFile(delete=False)