使用VUE项目，运行npm install，报了Python is not set from command line or npm configuration，查询不到python

1.  
   gyp verb find Python - executing "py.exe" to get Python executable path
2.  
   gyp verb find Python - "py.exe" is not in PATH or produced an error
3.  
   gyp ERR! find Python
4.  
   gyp ERR! find Python Python is not set from command line or npm configuration
5.  
   gyp ERR! find Python checking Python explicitly set from environment variable PYTHON
6.  
   gyp ERR! find Python - process.env.PYTHON is "C:\Users\qun\.windows-build-tools\python27"
7.  
   gyp ERR! find Python - "C:\Users\qun\.windows-build-tools\python27" is not in PATH or produced an error
8.  
   gyp ERR! find Python checking if "python3" can be used
9.  
   gyp ERR! find Python - "python3" is not in PATH or produced an error
10.  
    gyp ERR! find Python checking if "python" can be used
11.  
    gyp ERR! find Python - "python" is not in PATH or produced an error
12.  
    gyp ERR! find Python checking if "python2" can be used
13.  
    gyp ERR! find Python - "python2" is not in PATH or produced an error
14.  
    gyp ERR! find Python checking if Python is C:\Python37\python.exe
15.  
    gyp ERR! find Python - "C:\Python37\python.exe" could not be run
16.  
    gyp ERR! find Python checking if Python is C:\Python27\python.exe
17.  
    gyp ERR! find Python - "C:\Python27\python.exe" could not be run
18.  
    gyp ERR! find Python checking if the py launcher can be used to find Python
19.  
    gyp ERR! find Python - "py.exe" is not in PATH or produced an error
20.  
    gyp ERR! find Python
21.  
    gyp ERR! find Python **********************************************************
22.  
    gyp ERR! find Python You need to install the latest version of Python.
23.  
    gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
24.  
    gyp ERR! find Python you can try one of the following options:
25.  
    gyp ERR! find Python - Use the switch --python="C:\Path\To\python.exe"
26.  
    gyp ERR! find Python (accepted by both node-gyp and npm)
27.  
    gyp ERR! find Python - Set the environment variable PYTHON
28.  
    gyp ERR! find Python - Set the npm configuration variable python:
29.  
    gyp ERR! find Python npm config set python "C:\Path\To\python.exe"
30.  
    gyp ERR! find Python For more information consult the documentation at:
31.  
    gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
32.  
    gyp ERR! find Python **********************************************************
33.  
    gyp ERR! find Python
34.  
    gyp ERR! configure error
35.  
    gyp ERR! stack Error: Could not find any Python installation to use
36.  
    gyp ERR! stack at PythonFinder.fail (D:\MavenProject\renren-fast-vue\node_modules\node-gyp\lib\find-python.js:302:47)
37.  
    gyp ERR! stack at PythonFinder.runChecks (D:\MavenProject\renren-fast-vue\node_modules\node-gyp\lib\find-python.js:136:21)
38.  
    gyp ERR! stack at PythonFinder.<anonymous> (D:\MavenProject\renren-fast-vue\node_modules\node-gyp\lib\find-python.js:200:18)
39.  
    gyp ERR! stack at PythonFinder.execFileCallback (D:\MavenProject\renren-fast-vue\node_modules\node-gyp\lib\find-python.js:266:16)
40.  
    gyp ERR! stack at exithandler (child_process.js:296:5)
41.  
    gyp ERR! stack at ChildProcess.errorhandler (child_process.js:308:5)
42.  
    gyp ERR! stack at ChildProcess.emit (events.js:182:13)
43.  
    gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:238:12)
44.  
    gyp ERR! stack at onErrorNT (internal/child_process.js:407:16)
45.  
    gyp ERR! stack at process._tickCallback (internal/process/next_tick.js:63:19)
46.  
    gyp ERR! System Windows_NT 6.3.9600
47.  
    gyp ERR! command "D:\\JAVAWEB\\Nodejs\\node.exe" "D:\\MavenProject\\renren-fast-vue\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
48.  
    gyp ERR! cwd D:\MavenProject\renren-fast-vue\node_modules\node-sass
49.  
    gyp ERR! node -v v10.14.0
50.  
    gyp ERR! node-gyp -v v7.1.2
51.  
    gyp ERR! not ok
52.  
    Build failed with error code: 1
53.  
    npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.9 (node_modules\fsevents):
54.  
    npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
55.  
     
56.  
    npm ERR! code ELIFECYCLE
57.  
    npm ERR! errno 1
58.  
    npm ERR! node-sass@6.0.1 postinstall: `node scripts/build.js`
59.  
    npm ERR! Exit status 1
60.  
    npm ERR!
61.  
    npm ERR! Failed at the node-sass@6.0.1 postinstall script.
62.  
    npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
63.  
     
64.  
    npm ERR! A complete log of this run can be found in:
65.  
    npm ERR! C:\Users\qun\AppData\Roaming\npm-cache\_logs\2022-02-13T06_12_36_366Z-debug.log

解决方案：
1. 管理员权限打开cmd，在项目目录下执行：npm install --global --production windows-build-tools

安装成功会在C:\Users\**（电脑用户名）  目录下创建.windows-build-tools文件夹

2. 必须配置环境变量，将C:\Users\**\.windows-build-tools\python27地址添加到path中

3. 重启VSCode或者cmd窗口，我当时打开了2个VSCode窗口，只重启了一个，结果环境变量地址没有生效，又折腾了好久，一定要把所有VSCode窗口关闭重启。

也可以在python官网下载安装，还是要配置环境变量

在npm install安装期间，电脑又提示了安装.net framework4.8

参考资源：https://blog.csdn.net/levi_work/article/details/119863518

https://blog.csdn.net/qq_42886417/article/details/103123659

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