Can't find Python executable "python" after installing

[mikew]

node-gyp is failing because it can't find python. windows-build-tools did its thing and python is installed:

$ $(npm config get python)
Python 2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()
$ npm --version
4.5.0
$ node --version
v7.9.0

Here's the output from node-gyp:

+ node_modules/.bin/electron-rebuild --arch x64 -f -p -w serialport -m electron-app
× Rebuild Failed
An unhandled error occurred inside electron-rebuild
gyp info it worked if it ends with ok
gyp info using node-gyp@3.6.0
gyp info using node@7.9.0 | win32 | x64
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at PythonFinder.failNoPython (C:\Users\mike\Work\dronefuse-client\node_modules\node-gyp\lib\configure.js:482:19)
gyp ERR! stack     at PythonFinder.<anonymous> (C:\Users\mike\Work\dronefuse-client\node_modules\node-gyp\lib\configure.js:508:16)
gyp ERR! stack     at C:\Users\mike\Work\dronefuse-client\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:114:15)
gyp ERR! System Windows_NT 10.0.15063
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\mike\\Work\\dronefuse-client\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--target=1.4.13" "--arch=x64" "--dist-url=https://atom.io/download/electron" "--build-from-source" "--module_name=serialport" "--module_path=C:\\Users\\mike\\Work\\dronefuse-client\\electron-app\\node_modules\\serialport\\build\\Release" "--host=https://github.com/EmergingTechnologyAdvisors/node-serialport/releases/download/4.0.7"
gyp ERR! cwd C:\Users\mike\Work\dronefuse-client\electron-app\node_modules\serialport
gyp ERR! node -v v7.9.0
gyp ERR! node-gyp -v v3.6.0
gyp ERR! not ok

[mikew]

It's as if npm isn't even checking the value of python that is set, because this invocation works:

PATH="$(dirname $(npm config get python)):$PATH" node_modules/.bin/electron-rebuild --arch x64 -f -p -w serialport -m electron-app

[tkgalk]

Same issue here.

[choucry13]

+1

[garolion]

solution: nfroidure/ttf2woff2#28
npm install --global --production windows-build-tools

[felixrieseberg]

Hm, seems like this is more with electron-rebuild than with npm. I assume the real solution here is to also ensure that python is globally accessible, which would require checking if it isn't already.

I'd gladly accept a PR for that, I'm not sure when I'll get to it.

[ArminMa]

https://github.com/felixrieseberg/windows-build-tools/issues/33

npm --add-python-to-path='true' --debug install --global windows-build-tools

[jeanru]

npm config set python "c:\Python\27\python.exe"

[dougbacelar]

@ArminMa solution solved my issue! Had to run the CLI as administrator.

[harrodevos]

@ArminMa's solution worked for me too!

I first had Python version 3.6 for Windows installed on a Windows Server 2016 machine. I used the windows executable installation.

This was required in order to install the web3 package.

But no matter how I set path and environment variables, during the npm install of web3 it kept complaining it couldn't find the python executable. Typing python in the command prompt worked fine.

I suspect it has to do with version/compatibility issues between web3 and python. After uninstalling the 3.6 version of python and installing 2.7 using the npm command ArminMa suggested it all works!

I did update my environment variables (PYTHON and PATH) to the 2.7 executable.

[thuyvtgl]

Thank guys,
especially thank @ArminMa, you solved my issue.

[dhanabalcbt]

thanks arima

[Philip-Nunoo]

Thanks @ArminMa