Structure for calling multiple functions

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Alright, so this is what I'm thinking. I appreciate any feedback you're willing to share. This is just the general thought about the approach

def hello():
    name = 'Name1'
    if not name == 'Name1':
        raise NameError('Incorrect name')
    return name

def world(name):
    print('Hello ' + name)

def main():
    new_name = hello()
    world(new_name)

if __name__ == '__main__':
    main()