如何在Python中搜索字符串中的列表项？

Question

urlList = ["https://google.com","https://google.com/help","https://facebook.com","https://facebook.com/help","https://facebook.com/test"]

filterKeys = ["help","test"]

clearUrl = []

for i in urlList:
   if filterKeys not in i:  #TypeError: 'in <string>' requires string as left operand, not list
      clearUrl.append(i)

预期输出['https://google.com'，'https://facebook.com']

多谢各位

Answer 1

出现此错误是因为您以错误的方式使用了in运算符：

in的工作原理如下：

"string" in <collection>

代码中的问题在于您使用了：

<collection> in "string"

请尝试：

for i in urlList:
    if not any(map(lambda fk: fk in i, filterKeys)):
        # any will return True if at least of one the filterKeys is substring of i
        clearUrl.append(i)