在运行python安装脚本时，安装letsencrypt失败

Question

我试图在Debian 8上从源代码中安装letsencrypt。

运行./letsencrypt-auto --help --verbose时，脚本会停在以下几行：

...
Collecting funcsigs (from mock->letsencrypt)
  Using cached funcsigs-0.4-py2.py3-none-any.whl
Collecting pbr>=0.11 (from mock->letsencrypt)
  Using cached pbr-1.8.1-py2.py3-none-any.whl
Requirement already up-to-date: pycparser in /root/.local/share/letsencrypt/lib/python2.7/site-packages (from cffi>=1.1.0->cryptography>=0.7->letsencrypt)
Installing collected packages: cryptography, PyOpenSSL, requests, parsedatetime, configobj, pytz, psutil, ndg-httpsclient, werkzeug, funcsigs, pbr, mock, pyrfc3339, acme, zope.event, zope.component, ConfigArgParse, letsencrypt, python-augeas, letsencrypt-apache
  Running setup.py install for cryptography

从那以后什么都不会发生了。有什么问题吗？

Answer 1

尝试使用pip或包管理器安装加密模块。你可能会看到错误。顺便说一下!此模块通常不安装在内存较小的机器上。更多细节可以找到这里。