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

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安装PIL-1.1.7.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

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# 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()

(代码来自：http://effbot.org/zone/python-register.htm)

按F5执行即显示：

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。

引自

http://www.cnblogs.com/thinksasa/archive/2013/08/26/3283695.html