hexo/node_modules/node-gyp/docs/Common-issues.md

Python Issues OSX

Make sure you are using the native Python version in OSX. If you use a MacPorts of HomeBrew version, you may run into problems.

If you have issues with execvp, be sure to check your $PYTHON environment variable. If it is not set to the native version, unset it and try again.

Notes: https://gist.github.com/erichocean/5177582

npm ERR! node-gyp rebuild(Windows)

• just install the build tools from here Please note the version as is required in below command e.g 2017
• Launch cmd, run npm config set msvs_version 2017
• close and open new CMD/terminal and all is well 💯