Remove empty keys in a python list

[python_student]

Sorry to forget that

Error:
TypeError                                 Traceback (most recent call last)
<ipython-input-61-8adcda79951d> in <module>
    112     payload2 = []
    113     for i in range(len(payload)):
--> 114         for value in i['payload'].value():
    115             if value =='':
    116                 break

TypeError: 'int' object is not subscriptable

I had this error