python2.7无法在注册表中被识别：python version 2.7 required,which was no

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安装MySQL-python-1.2.4b4.win32-py2.7的时候，不能再注册表中识别出来python2.7
方法：新建一个register.py 文件，把一下代码贴进去，保存

!E:\python2.7

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()

按F5执行，显示“python 2.7 is already registered”
再安装setuptools的时候，就能自动识别出来python2.7了。
win7是 64的原因，在安装python（32位）时，如果选择只为当前用户，以上问题是不会出现的，如果选择所有用户，那就用上面的方法解决吧。