Windows使用pip安装pipenv工具或者第三方库出现SSLError报错完美解决方法
今天博主我使用pip安装pipenv工具搞了半天总是报错：
C:\Users\23521\pipenv>pip install pipenv
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pipenv/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pipenv/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pipenv/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pipenv/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pipenv/
Could not fetch URL https://pypi.org/simple/pipenv/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pipenv/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement pipenv (from versions: none)
ERROR: No matching distribution found for pipenv
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
不管我去网上怎么找资料去改，都还是这样的错误，就很Cd,后来终于找到了比较好的方法，出现这种SSL错误原因在于：
1.我们默认用的是国外的源(这个肯定，编程基本上来自于国外)，
太远了嘛，而且又有墙墙，导致连接不太好，因此出现SSL错误，因此换个源就行了：
首先直接在C盘的user目录中创建一个pip目录，然后在这个文件夹中创建一个pip.ini文件(把文件后缀改一下就行)，然后写入：
[global]
index-url = http://pypi.douban.com/simple
大家可以根据自己兴趣来，有很多国内源，上面那个是豆瓣的：
阿里云 http://mirrors.aliyun.com/pypi/simple/
中国科技大学 https://pypi.mirrors.ustc.edu.cn/simple/
豆瓣 http://pypi.douban.com/simple
Python官方 https://pypi.python.org/simple/
v2ex http://pypi.v2ex.com/simple/
中国科学院 http://pypi.mirrors.opencas.cn/simple/
清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/
2.之后换完源，可能还会出现错误：
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
Requirement already up-to-date: pip in c:\users\23521\anaconda3\lib\site-packages (20.0.1)
没关系，这个是由于换源之后对源地址的不信任，因此在上述的pip.ini文件中后面再加上：
[install]
trusted-host=http://pypi.douban.com/simple
综上，即：
[global]
index-url = http://pypi.douban.com/simple
[install]
trusted-host=http://pypi.douban.com/simple
之后保存文件，然后在输入pip命令安装第三方库或者pipenv就可以成功了。