解决已经安装requests,却依然提示No module named requests问题

Python版本3.5.1，

pip install requests 之后依然提示

Python ImportError: No module named 'requests'

经过文件搜索和提示，发现是因为安装目录不正确。

一定要切到Python的主目录下安装requests。

如果提示已经安装，那原因是安装的路径不正确，需要先卸载。找到现在的安装目录（会提示），在CMD窗口切过去，执行：

pip uninstall requests

C:\Users\Administrator>pip uninstall requests
Uninstalling requests-2.14.2:
 c:\programdata\anaconda3\lib\site-packages\requests
 c:\programdata\anaconda3\lib\site-packages\requests-2.14.2-py3.6.egg-info
Proceed (y/n)? y
 Successfully uninstalled requests-2.14.2

然后，将目录切到Python的安装目录下，执行：

pip install requests.

会出现如下的提示：

Collecting requests
 Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connec
tion broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.conne
ction.VerifiedHTTPSConnection object at 0x036C1850>: Failed to establish a new c
onnection: [Errno 11003] getaddrinfo failed',)': /simple/requests/
 Downloading requests-2.18.3-py2.py3-none-any.whl (88kB)
 46% |??????????????? | 40kB 251kB/s eta 0:00:
 57% |??????????????????? | 51kB 268kB/s eta 0
 69% |??????????????????????? | 61kB 315kB/s e
 80% |?????????????????????????? | 71kB 341kB/
 92% |?????????????????????????????? | 81kB 38
 100% |????????????????????????????????| 92kB
 359kB/s

Collecting urllib3<1.23,>=1.21.1 (from requests)
 Downloading urllib3-1.22-py2.py3-none-any.whl (132kB)
 38% |????????????? | 51kB 965kB/s eta 0:00:01
 46% |??????????????? | 61kB 1.1MB/s eta 0:00:
 54% |?????????????????? | 71kB 1.1MB/s eta 0:
 61% |???????????????????? | 81kB 1.0MB/s eta
 69% |??????????????????????? | 92kB 1.1MB/s e
 77% |????????????????????????? | 102kB 1.1MB/
 85% |???????????????????????????? | 112kB 1.0

至此，问题解决。

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