try和except方法来禁用错误消息 [英] try and except method to disable error messages

问题描述

我在/ add_post /'NoneType'中得到AttributeError当我不提供不是必填字段的url时，对象没有属性'src'
。我只想使用try和catch方法，所以我不会再收到这个错误。

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

错误发生在 resposne = {'image'：article.top_image.src

实现try的问题，除了我面临的是，当我收到这个错误，我想要一些默认图像显示，但不知道如何....如果你能帮助我，我将不胜感激。谢谢

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

推荐答案

只需检查top_image是否为none。

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'}

这篇关于try和except方法来禁用错误消息的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！