Update app.py

app.py

@@ -144,8 +144,8 @@ def predict(process_video):
     os.chdir('/home/user/app')
     os.system('bash TestVisual.sh')
     pred=[]
-    open("/home/user/app/result/ho.txt", 'r') as f
-    pred = f.readlines()
+    fi = open("/home/user/app/result/ho.txt", 'r')
+    pred = fi.readlines()
     return pred[-1]