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/distutils-sig@python.org/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。