tox -e py27 出錯: 'module' object has no attribute 'Cryptography_HAS_SSL_ST

1.環境

ubuntu16.04 python2.7

 

2.問題

執行tox -e py27命令時出錯,提示"'module' object has no attribute 'Cryptography_HAS_SSL_ST"

 

3.解決方法

  1. 進入目錄:  cd .tox/py27/local/lib/python2.7/site-packages

  2. 刪除OpenSSL: rm -rf OpenSSL/

  3. 在.tox/py27/local/lib/python2.7/site-packages目錄下安裝pyOpenSSL: sudo python easy_install.py pyOpenSSL

  (參考: https://stackoverflow.com/questions/41102299/unable-to-install-any-pip-module-module-object-has-no-attribute-cryptography)

  4: 總結: 需要在對應的目錄安裝OpenSSL, 因為用pip install pyOpenSSL時總是用py35/pip 安裝, 而py35已有pyOpenSSL.