pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.python.org/simple/pip/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Could not fetch URL https://www.piwheels.org/simple/pip/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
報了新的錯誤 ：
Could not fetch URL https://pypi.org/simple/xlsxwriter/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/xlsxwriter/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1056)'))) - skipping
研究了好久只知道是證書的錯誤~按照網上的各種指導嘗試瞭如下方案
1.第一種嘗試方式:直接下載get-pip.py檔案,執行命令python get-pip.py 結果是:失敗
2.第二種嘗試方式:加上--trusted-host 執行 pip --trusted-host pypi.python.org install xxx 結果是:失敗
3.第三種嘗試:發現是url的來源的問題,換成了國內的pip源就可以正常安裝了,我使用的是:pip install xlrd -i http://pypi.douban.com/simple --trusted-host pypi.douban.com,結果:失敗
1)http://mirrors.aliyun.com/pypi/simple/ 阿里雲
2)https://pypi.mirrors.ustc.edu.cn/simple/ 中國科技大學
4.第四種嘗試:思考了一下混合了兩個問題的解決方法，使用命令python -m pip install xlsxwriter --trusted-host=pypi.python.org --trusted-host=pypi.org --trusted-host=files.pythonhosted.org ，結果：成功
