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ERR! configure error gyp ERR! stack Error: Can't find Python executable python

Node.js 在安装模块的时候报错，缺少python环境。

ERR! configure error gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.

错误信息如下：

1 2 3 4 5 6 7 8 9 10 11 12 D:\node_modules\selenium-webdriver\node_modules\ws\node_modules\utf-8-validate>node "D:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ERR! configure error gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable. gyp ERR! stack     at failNoPython (D:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14) gyp ERR! stack     at D:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11 gyp ERR! stack     at Object.oncomplete (fs.js:107:15) gyp ERR! System Windows_NT 6.2.9200 gyp ERR! command "node" "D:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" gyp ERR! cwd D:\node_modules\selenium-webdriver\node_modules\ws\node_modules\utf-8-validate gyp ERR! node -v v0.10.29 gyp ERR! node-gyp -v v0.13.1 gyp ERR! not ok

原因看node-gyp的安装需求，， 部分剪切如下，可以请求的看到需要安装python2.7（其实2.6也行）python3不行

You can install with npm:

$ npm install -g node-gyp

You will also need to install:

  • On Unix:

    • python (v2.7 recommended, v3.x.x is not supported)

    • make

    • A proper C/C++ compiler toolchain, like GCC

  • On Mac OS X:

    • You also need to install the Command Line Tools via Xcode. You can find this under the menu Xcode -> Preferences -> Downloads

    • This step will install gcc and the related toolchain containing make

    • python (v2.7 recommended, v3.x.x is not supported) (already installed on Mac OS X)

    • Xcode

  • On Windows:

    • For 64-bit builds of node and native modules you will also need the Windows 7 64-bit SDK

    • You may need to run one of the following commands if your build complains about WindowsSDKDir not being set, and you are sure you have already installed the SDK:

    • Microsoft Visual Studio C++ 2013 for Windows Desktop (Express version works well)

    • Microsoft Visual Studio C++ 2013 (Express version works well)

    • If the install fails, try uninstalling any C++ 2010 x64&x86 Redistributable that you have installed first

    • If you get errors that the 64-bit compilers are not installed you may also need thecompiler update for the Windows SDK 7.1

    • Make sure that you have a PYTHON environment variable, and it is set to drive:\path\to\python.exe not to a folder

    • Python (v2.7.3 recommended, v3.x.x is not supported)

    • Windows XP/Vista/7:

    • Windows 7/8:

    • All Windows Versions

call "C:\Program Files\Microsoft SDKs\Windows\v7.1\bin\Setenv.cmd" /Release /x86
call "C:\Program Files\Microsoft SDKs\Windows\v7.1\bin\Setenv.cmd" /Release /x64

If you have multiple Python versions installed, you can identify which Python version node-gyp uses by setting the '--python' variable:

$ node-gyp --python /path/to/python2.7

If node-gyp is called by way of npm and you have multiple versions of Python installed, then you can set npm's 'python' config key to the appropriate value:

$ npm config set python /path/to/executable/python2.7

Note that OS X is just a flavour of Unix and so needs python, make, and C/C++. An easy way to obtain these is to install XCode from Apple, and then use it to install the command line tools (under Preferences -> Downloads).

所以下载安装Python2.7就行了，记得配环境变量。

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