[Bug 217984] www/npm: cannot build native modules with node-gyp (python not found)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217984

            Bug ID: 217984
           Summary: www/npm: cannot build native modules with node-gyp
                    (python not found)
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: Individual Port(s)
          Assignee: sunpoet at FreeBSD.org
          Reporter: bradleythughes at fastmail.fm
                CC: sunpoet at FreeBSD.org
                CC: sunpoet at FreeBSD.org
             Flags: maintainer-feedback?(sunpoet at FreeBSD.org),
                    maintainer-feedback?(sunpoet at FreeBSD.org)
          Assignee: sunpoet at FreeBSD.org

I installed node and npm via pkg, then try to install a module that needs to
compile a native module. This fails because the "python" command is not found.
I can work around this by running `env PYTHON=python2.7 npm i $package`.

Example error:

$ npm i unix-dgram

> unix-dgram at 2.0.0 install /usr/home/bhughes/someproject/node_modules/unix-dgram
> node-gyp rebuild

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
(/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:454:19)
gyp ERR! stack     at PythonFinder.<anonymous>
(/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:368:16)
gyp ERR! stack     at F
(/usr/local/lib/node_modules/npm/node_modules/which/which.js:68:16)
gyp ERR! stack     at E
(/usr/local/lib/node_modules/npm/node_modules/which/which.js:80:29)
gyp ERR! stack     at
/usr/local/lib/node_modules/npm/node_modules/which/which.js:89:16
gyp ERR! stack     at
/usr/local/lib/node_modules/npm/node_modules/which/node_modules/isexe/index.js:44:5
gyp ERR! stack     at
/usr/local/lib/node_modules/npm/node_modules/which/node_modules/isexe/access.js:8:5
gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:114:15)
gyp ERR! System FreeBSD 11.0-RELEASE-p8
gyp ERR! command "/usr/local/bin/node"
"/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js"
"rebuild"
gyp ERR! cwd /usr/home/bhughes/someproject/node_modules/unix-dgram
gyp ERR! node -v v7.7.3
gyp ERR! node-gyp -v v3.5.0
gyp ERR! not ok 
npm WARN someproject No description
npm WARN someproject No repository field.
npm WARN someproject No license field.
npm ERR! FreeBSD 11.0-RELEASE-p8
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "i" "unix-dgram"
npm ERR! node v7.7.3
npm ERR! npm  v4.3.0
npm ERR! code ELIFECYCLE
npm ERR! errno 1

npm ERR! unix-dgram at 2.0.0 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the unix-dgram at 2.0.0 install script 'node-gyp rebuild'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the unix-dgram package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs unix-dgram
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls unix-dgram
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/bhughes/.npm/_logs/2017-03-21T20_19_11_780Z-debug.log
$

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