安装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/

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()