【转载】教你解决Cocos套件中Lua绑定C++出现的问题

原文地址：https://www.namidame.tech/No-module-named-yaml.html

在安装cocos2dx框架之后，首次使用Lua绑定C++脚本需要安装配置一些环境，可能会出现以下报错，针对这些报错本文提供了相应的解决方法。

一、缺少yaml模块

使用Lua绑定C++，执行tools/tolua/genbindings.py时报错"ImportError: No module named yaml"，这是因为未安装yaml模块，下载安装yaml模块即可:
http://pyyaml.org/download/pyyaml/PyYAML-3.10.win32-py2.7.exe

二、python2.7不在注册表信息里

安装yaml时出现python version 2.7 required,which was not found in the registry
这是因为注册表里丢失了python的安装信息，用以下方式添加注册信息即可
新建register.py文件，复制以下内容，保存并运行

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

运行成功则成功恢复注册表信息

三、未安装Cheetah

安装yaml后再运行genbindings.py，报错ImportError: No module named Cheetah.Template，原因是缺少了cheetah库，下载安装即可
下载Cheetah库：http://github.com/cheetahtemplate/cheetah/zipball/v2.4.0

• 将下载完的zip文件解压到任意目录，例如C:\Python27\Lib\cheetahtemplate-cheetah-7b1c2ad\
• 命令行依次执行以下命令

C:
cd \Python27\Lib\cheetahtemplate-cheetah-7b1c2ad>
python setup.py build
python setup.py install

四、python版本不符

执行genbindings.py报错LibclangError: [Error 193] %1 不是有效的 Win32. To provide e Config.set_library_path() or Config.
按照前面两步安装的yaml和Cheetah库都是win32版本的，出现这个错误是因为python不是win32版本，全部都用win32版本即可
下载python win32版本http://www.python.org/ftp/python/2.7.3/python-2.7.3.msi
安装后重新运行即可

PS.以上下载地址和不同平台的安装方法在Python根目录下的README有说明。

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原文地址: http://www.namidame.tech/No-module-named-yaml.html