Python没有从pip安装注册新模块

Question

我最近安装了python的请求库。而且python没有看到它，但是它是安装控制台输出的：

C:\Users\Raitis\Desktop>pip3 install requests
Requirement already satisfied: requests in c:\users\raitis\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (2.23.0)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\users\raitis\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from requests) (1.25.8)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\raitis\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from requests) (2019.11.28)
Requirement already satisfied: idna<3,>=2.5 in c:\users\raitis\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from requests) (2.9)
Requirement already satisfied: chardet<4,>=3.0.2 in c:\users\raitis\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from requests) (3.0.4)

C:\Users\Raitis\Desktop>py
Python 3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:21:23) [MSC v.1916 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'requests'

它确实安装了，我们可以看到在direcory(屏幕快照：https://prnt.sc/r90uhr)和python的路径被添加到环境路径(屏幕快照：https://prnt.sc/r90rus)

Answer 1

尝试使用以下命令安装请求库

py -m pip install requests

或者在你的案例中使用，

py -m pip3 install requests