print() is a function in Python 3

[mcandre]

On my machine, the python binary points to Python v3.7.

$ cat .python-version 
3.7.4

$ pyenv versions
  system
  2.7.13
  2.7.15
  3.4.3
  3.7.0
* 3.7.4

$ python --version
Python 3.7.4

$ npm config get python
/Users/tkmamhf/.pyenv/shims/python

However, when I try to npm install a package like appmetrics-prometheus which depends on node-gyp, then node-gyp sends Python 2 style code to query the Python version, which fails:

$ npm install

gyp ERR! configure error 
gyp ERR! stack Error: Command failed: /Users/tkmamhf/.pyenv/shims/python -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                                ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack 
gyp ERR! stack     at ChildProcess.exithandler (child_process.js:294:12)
gyp ERR! stack     at ChildProcess.emit (events.js:189:13)
gyp ERR! stack     at maybeClose (internal/child_process.js:970:16)
gyp ERR! stack     at Socket.stream.socket.on (internal/child_process.js:389:11)
gyp ERR! stack     at Socket.emit (events.js:189:13)
gyp ERR! stack     at Pipe._handle.close (net.js:597:12)

I forcibly reconfigured my NPM python path with npm config set python python3.7 and get the same error.

Please make sure to wrap print arguments in safety parentheses, so that this query for Python versions can be supplied to different Python versions.

[cclauss]

Please upgrade node-gyp. This issue was fixed long ago.

[frkami123]

this kinda annoying since node-gyp very deep in the dependencies hierarchy of blueprintjs (node-sass 4.12 that still use 3.8.0) and 3.8.0 the last release of major vesion 3.x.x has this bug.

[cclauss]

Use legacy Python instead of Python 3 or upgrade Node-gyp to a version that supports Python 3.