window7下安装第三方包报错及解决

window7 64位下安装第三方包，,比如安装yaml的exe执行文件，会

报错及解决：python version 2.7(3.4) required,which was not found in the registry

方法：新建一个register.py 文件，把一下代码贴进去，保存

#

# 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/[email protected]/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()

用python2.7的idle执行一下即可，会提示“python 2.7 is already registered”

window7 下安装的是python3.4的32位，没有_winreg模块导致无法按脚本，可直接在注册表中直接添加

LOCAL_CURRENT_USER\software\python\PyhtonCore下创建3.4目录，添加InstallPath和PythonPath项，具体如下图：

InstallPath：   D:\python\Python34

PythonPath：  D:\python\Python34;D:\python\Python34\Lib\;D:\python\Python34\DLLs\