安装PIL库时提示python未注册错误（自定义python安装路径）

 1 import sys
 2
 3 from _winreg import *
 4
 5 # tweak as necessary
 6 version = sys.version[:3]
 7 installpath = sys.prefix
 8 regpath = "SOFTWARE\Python\Pythoncore\%s\\" % (version)
 9 installkey = "InstallPath"
10 pythonkey = "PythonPath"
11 pythonpath = "%s;%s\Lib\;%s\DLLs\\" % (
12     installpath, installpath, installpath
13 )
14
15 def RegisterPy():
16     try:
17         reg = OpenKey(HKEY_CURRENT_USER, regpath)
18     except EnvironmentError as e:
19         try:
20             reg = CreateKey(HKEY_CURRENT_USER, regpath)
21             SetValue(reg, installkey, REG_SZ, installpath)
22             SetValue(reg, pythonkey, REG_SZ, pythonpath)
23             CloseKey(reg)
24         except:
25             print "*** Unable to register!"
26             return
27         print "--- Python", version, "is now registered!"
28         return
29     if (QueryValue(reg, installkey) == installpath and
30         QueryValue(reg, pythonkey) == pythonpath):
31         CloseKey(reg)
32         print "=== Python", version, "is already registered!"
33         return
34     CloseKey(reg)
35     print "*** Unable to register!"
36     print "*** You probably have another Python installation!"
37 RegisterPy()

将以上代码运行一下注册一下现有的路径即可安装PIL了

PIL下载地址：http://pythonware.com/products/pil/