如何解决属性错误："NoneType"对象没有此问题的属性"文本"？

Question

nodiscount_price = container.find("div",{"class":"discount_block tab_item_discount no_discount"})
if(nodiscount_price != None):
nodiscount_price = nodiscount_price.text

nodiscount_price是一个变量，它可能有也可能没有值，这就是为什么我使用if()语句来防止任何错误，但在执行时，它会给出一个错误:

AttributeError: 'NoneType' object has no attribute 'text'

Answer 1

应该可以:

if nodiscount_price is not None:
nodiscount_price = nodiscount_price.text
else:
nodiscount = 'empty'

但是您也可以处理它，例如使用try & except来避免引发错误:

try:
nodiscount_price = container.find("div",{"class":"discount_block tab_item_discount no_discount"}).get_text()
except:
nodiscount_price = ''