为什么我在get请求中收到以下错误

Question

我有这样的代码：

import requests
import xmltodict

Locations = ['http://129.94.5.93:49154/setup.xml', 'http://129.94.5.92:49154/setup.xml', 'http://129.94.5.93:49154/setup.xml', 'http://129.94.5.92:49154/setup.xml', 'http://129.94.5.95:80/description.xml']

for item in Locations:
    r = requests.get(item)
    reply = xmltodict.parse(r.text)

这给了我以下错误：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "ssdpxml.py", line 57, in <module>
    r = requests.get(item)
AttributeError: 'str' object has no attribute 'get'

但是当我这样做时它会起作用：

r=requests.get('http://129.94.5.95:80/description.xml')

为什么我会收到上述错误？