python安装numpy科学计算模块

解决两个问题：

（1）Import Error: No module named numpy

（2）Python version 2.7 required, which was not found in the registry

（1）这种错误是因为没有安装numpy科学计算库，因此需要安装此模块。

1. 首先下载正确的exe安装文件：numpy-MKL-1.8.0.win-amd64-py2.7.exe。

2. 接着我们双加打开安装文件，点击运行按钮

3. 安装过程很简单，点击下一步

4. 在第一步，如果你看到自己的python的版本号和安装路径，说明你的numpy下载的版本是正确的，点击下一步

5. 一直点击下一步即可完成安装

6. 打开python，我们输入import numpy，如果没有提示错误信息，就说明我们安装完成

注意：在安装的过程中，可能会出现：

Python version 2.7 required, which was not found in the registry

这是因为python安装时没有写入到注册表中：

解决方法为：

写一个如下脚本，可以命名为：PythonRegister.py：

 # script to register Python 2.0 or later for use with win32all
 # and other extensions that require Python registry settings
 #
 # written by Joakim Loew for Secret Labs AB / PythonWare
 #
 # source:
 # http://www.pythonware.com/products/works/articles/regpy20.htm
 #
 # modified by Valentine Gogichashvili as described in http://www.mail-archive.com/[e-mail]/msg10512.html  

 import sys  

 from _winreg import *  

 # tweak as necessary
 version = sys.version[:3]
 installpath = sys.prefix  

 regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
 installkey = "InstallPath"
 pythonkey = "PythonPath"
 pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
     installpath, installpath, installpath
 )  

 def RegisterPy():
     try:
         reg = OpenKey(HKEY_CURRENT_USER, regpath)
     except EnvironmentError as e:
         try:
             reg = CreateKey(HKEY_CURRENT_USER, regpath)
             SetValue(reg, installkey, REG_SZ, installpath)
             SetValue(reg, pythonkey, REG_SZ, pythonpath)
             CloseKey(reg)
         except:
             print "*** Unable to register!"
             return
         print "--- Python", version, "is now registered!"
         return
     if (QueryValue(reg, installkey) == installpath and
         QueryValue(reg, pythonkey) == pythonpath):
         CloseKey(reg)
         print "=== Python", version, "is already registered!"
         return
     CloseKey(reg)
     print "*** Unable to register!"
     print "*** You probably have another Python installation!"  

 if __name__ == "__main__":
     RegisterPy()  

然后在CMD中执行：

启动命令切换到PythonRegister.py文件目录下执行

重新安装PIL，错误解决，安装成功。

此时就可以重新安装numpy库。