Python 3 support in Node.js 12

[adamjstewart]

• Node.js Version: 12.14.0
• OS: macOS 10.15.2
• Scope (install, code, runtime, meta, other?): install

Hi, I'm updating our package for node-js in the Spack package manager and was wondering if you could help. It looks like Node.js version 12 added experimental support for Python 3, and version 13 added full support, is that correct? How can I experiment with that Python 3 support? I tried setting PYTHON to my Python 3 executable, but it looks like the configure script still uses the system Python 2 instead.

I tried Node.js 13, but it seems that the libraries vendored with npm (specifically sharp) do not yet support Node.js 13.

@tgamblin

[adamjstewart]

Looking at the Travis config files, do I need to set NODE_GYP_FORCE_PYTHON in addition to PYTHON?

[adamjstewart]

Update: I got things working by running configure.py directly with the python3 executable instead of running the configure shell script.

[gireeshpunathil]

thanks for self-diagnosing this!

maybe worthwhile to add a note to that effect in https://github.com/nodejs/node/blob/master/BUILDING.md#note-about-python-2-and-python-3 ? do you want to try a PR for that?

[richardlau]

thanks for self-diagnosing this!

maybe worthwhile to add a note to that effect in https://github.com/nodejs/node/blob/master/BUILDING.md#note-about-python-2-and-python-3 ? do you want to try a PR for that?

Should be unnecessary for Node.js 13 and later because of nodejs/node#30091.