Node 12.14.1
macOS 10.15.5
node-gyp 5.1.1

Setting the environment variable NODE_GYP_FORCE_PYTHON seems to work for most things, but it doesn't change the Python version used by "gyp-mac-tool". I think the problem is that even though "gyp-mac-tool" is a Python program, it is just run as a generic executable with a shebang line:

#!/usr/bin/env python 

So it ends up using whatever "python" is in the PATH, instead of what PythonFinder returns.

I'm not sure how to fix this...

• Maybe run "gyp-mac-tool" as "$PYTHON gyp-mac-tool" instead of as a generic executable? Does this require changes to gyp?
• Maybe node-gyp can do some temporary symlink/PATH stuff to ensure the right Python gets run?