How to catch empty user input using a try and except in python? [closed]

Answer 1

try:
    input = raw_input('input: ')
    if int(input):
        ......
except ValueError:
    if not input:
        raise ValueError('empty string')
    else:
        raise ValueError('not int')

try this, both empty string and non-int can be detected. Next time, be specific of the question.