请求模块不适用于 Python3，但适用于 Python

Question

当我输入时，它显示我已经安装了请求模块： pip3 install requests

回复：

Requirement already satisfied: requests in /usr/local/lib/python3.7/site-packages (2.24.0)
Requirement already satisfied: idna<3,>=2.5 in /usr/local/lib/python3.7/site-packages (from requests) (2.9)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /usr/local/lib/python3.7/site-packages (from requests) (1.25.8)
Requirement already satisfied: certifi>=2017.4.17 in /usr/local/lib/python3.7/site-packages (from requests) (2019.11.28)
Requirement already satisfied: chardet<4,>=3.0.2 in /usr/local/lib/python3.7/site-packages (from requests) (3.0.4)

所以当我用代码创建一个名为 http.py 的文件时：

import requests

url = "https://google.com"
response = requests.get(url)
print(f"your request to {url} came back w/ status code {response.status_code}")

我收到一条错误消息：

Traceback (most recent call last):
  File "23_Making-HTTP-Requests/http.py", line 2, in <module>
    import requests
  File "/usr/local/lib/python3.7/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/usr/local/lib/python3.7/site-packages/urllib3/__init__.py", line 7, in <module>
    from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 11, in <module>
    from .exceptions import (
  File "/usr/local/lib/python3.7/site-packages/urllib3/exceptions.py", line 2, in <module>
    from .packages.six.moves.http_client import IncompleteRead as httplib_IncompleteRead
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
  File "/usr/local/lib/python3.7/site-packages/urllib3/packages/six.py", line 199, in load_module
    mod = mod._resolve()
  File "/usr/local/lib/python3.7/site-packages/urllib3/packages/six.py", line 113, in _resolve
    return _import_module(self.mod)
  File "/usr/local/lib/python3.7/site-packages/urllib3/packages/six.py", line 82, in _import_module
    __import__(name)
  File "/Users/colechalland/Code/Python-3/Modern_Python3_Bootcamp/23_Making-HTTP-Requests/http.py", line 5, in <module>
    response = requests.get(url)
AttributeError: module 'requests' has no attribute 'get'

但是当我用 python2 运行这段代码时：

import requests

url = "https://google.com"
response = requests.get(url)
print(response.status_code)

我没有错误并打印出来： 200

我曾尝试使用 pip3 卸载和重新安装请求，但这并不能解决问题。 奇怪的是，当我使用相同的代码在终端中运行 python3 时，它可以工作：

Python 3.7.3 (default, Jun 19 2019, 07:38:49)
[Clang 10.0.1 (clang-1001.0.46.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>> url = "https://google.com"
>>> response = requests.get(url)
>>>
>>> print(f"your request to {url} came back w/ status code {response}")
your request to https://google.com came back w/ status code <Response [200]>
>>>

Answer 1

问题在于您的http.py文件，只需将其重命名为其他名称即可。 有一个http 包，底层库 ( urllib3 ) 正在urllib3导入一些模块。

Answer 2

你的 cwd 中有一个名为 requests.py 的文件吗？ 如果它在那里，那么你应该重命名它并确保它与 python 的任何其他模块不匹配，否则你会得到一个错误。