启动server服务提示cryptography is requ

1.启动server服务提示cryptography is required for sha256_password or caching_sha2_passw

方法1：重新创建超级管理员ok

方法二：需要安装cryptography

下载exe版本

安装包地址： 

http://www.voidspace.org.uk/python/pycrypto-2.6.1/pycrypto-2.6.1.win32-py3.4.exe

2.点击运行提示python version 3.4 required ，which was not found in the registry

Python version 3.4 required, which was not found in the registry.解决

问题描述： 在Win7环境下已安装Python3.4，准备安装numpy和nltk，运行安装程序报如题错误，具体解决方案如下：

1.将LOCAL_MACHINE\software\python\PyhtonCore\3.4导出，不妨设为3_4.reg，

2.编辑3_4.reg，将LOCAL_MACHINE全部替换为CURRENT_USER，点击保存，

3.双击运行3_4.reg文件，现在CURRENT_USER\software\python\PyhtonCore应该存在了3.4目录了

3.重新运行exe程序安装成功，安装cryptography成功

4.python manage.py runserver启动服务