尝试和除外方法来禁用错误消息

Question

I'm getting AttributeError at /add_post/'NoneType' object has no attribute 'src' whenever I don't provide url which is not a required field. I just want to use try and catch method so I don't get this error again.

def extract(url):
    g = Goose()
    article = g.extract(url=url)
    resposne = {'image':article.top_image.src}
    return article.top_image.src

the error is occurring from resposne = {'image':article.top_image.src} the problem of implementing try and except I'm facing is that when I'm getting this error I want some default image to be displayed, but don't know how....if you can help me I would be appreciated. Thank you

Answer 1

Simply check whether top_image is none.

if article is not None:
    if article.top_image is not None:
        return {'image':article.top_image.src}

return {'image':'default image'}

Answer 2

If that's the only error then:

try:
    resposne = {'image':article.top_image.src}
except AttributeError:
    resposne = some_image_object