装scipy或者numpy时弹出python2.7 was not found in the registry 的解决办法: python的注册与注销方法

参考链接：
http://lijunwei1228ok.blog.163.com/blog/static/9738379720140231713138/

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():
     print   " begin RegisterPy  "
     try :
         print   " open key : %s " % regpath
        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   " *** EXCEPT: 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   " *** ERROR:Unable to register! "  
     print   " *** REASON:You probably have another Python installation! "

def  UnRegisterPy():
     # print "begin UnRegisterPy "
     try :
         print   " open HKEY_CURRENT_USER key=%s " % (regpath)
        reg  =  OpenKey(HKEY_CURRENT_USER, regpath)
         # reg = OpenKey(HKEY_LOCAL_MACHINE, regpath)
     except  EnvironmentError:  
         print   " *** Python not registered?! "
         return
     try :
       DeleteKey(reg, installkey)
       DeleteKey(reg, pythonkey)
       DeleteKey(HKEY_LOCAL_MACHINE, regpath)
     except :
        print   " *** Unable to un-register! "
     else :
        print   " --- Python " , version,  " is no longer registered! "             

if   __name__   ==   " __main__ " :  
    RegisterPy()

其实手动在注册表里 操作就可以了。