我尝试安装 Truffle，但出现以下错误：
$ npm install -g truffle
C:\Users\dany.vandermeij\AppData\Roaming\npm\truffle -> C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\build\cli.bundled.js
> [email protected] /cdn-cgi/l/email-protection install C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
> npm run rebuild || echo "Keccak bindings compilation fail. Pure JS implementation will be used."
> [email protected] /cdn-cgi/l/email-protection rebuild C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
> node-gyp rebuild
C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak>if not defined npm_config_node_gyp (node "C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node "C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild )
gyp ERR! configure error
gyp ERR! stack Error: Command failed: C:\Users\dany.vandermeij\AppData\Local\Programs\Python\Python37-32\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack File "<string>", line 1
gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack at ChildProcess.exithandler (child_process.js:275:12)
gyp ERR! stack at emitTwo (events.js:126:13)
gyp ERR! stack at ChildProcess.emit (events.js:214:7)
gyp ERR! stack at maybeClose (internal/child_process.js:925:16)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\dany.vandermeij\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
gyp ERR! node -v v8.11.4
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] /cdn-cgi/l/email-protection rebuild: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] /cdn-cgi/l/email-protection rebuild script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\dany.vandermeij\AppData\Roaming\npm-cache\_logs\2019-01-22T09_38_03_836Z-debug.log
"Keccak bindings compilation fail. Pure JS implementation will be used."
+ [email protected] /cdn-cgi/l/email-protection
added 89 packages from 304 contributors and updated 1 package in 14.582s
我测试了 truffle 命令，它们似乎可以工作，但我不知道为什么会收到此错误......
（这里我需要更多的文字，所以这里有一个超级棒的 Hacker Ipsum：Haxx0r ipsum，它是一个功能客户端 python else packet sniffer epoch 套接字。Dennis Ritchie 堆栈竞争条件 pwned warez James T. Kirk 适当的小值。Gc 继续 sql packet分配跨越较少的受保护的 gcc shell 字节。）
感谢您的帮助
Use npm install -g truffle --unsafe-perm安装 truffle 这可能是由于 keccak 的语法问题而发生的，这不会影响功能。
更新（Windows）
npm install --global windows-build-tools
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