Python 中安装pymysql 报错Could not fetch URL https://pypi.org/simple/pymysql/ 解决办法:改换镜像

linux下使用Pycharm连接数据库,安装pymysql时,开始报错:
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尝试更新pip:pip install --upgrade pip
继续报错:
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网上例子很多,解决方法大多是:pip --trusted-host pypi.python.org install pymysql(要安装的包)
试了试,仍然继续报错,没有解决问题,找到了另一种解决办法:参考网址:(http://www.mamicode.com/info-detail-2288373.html)
成功解决
成功解决

Could not fetch URL https://pypi.org/simple/pymysql/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pymysql/ (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))) - skipping 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(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))) - skipping WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))': /simple/pymysql/ WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))': /simple/pymysql/ WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))': /simple/pymysql/ WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))': /simple/pymysql/ WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1129)'))': /simple/pymysql/ ERROR: Could not find a version that satisfies the requirement pymysql (from versions: none) ERROR: No matching distribution found for pymysql
03-25
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