node-gyp: Python syntax error when using node-gyp@3.8.0

Node Version:
Platform:
Compiler:
Module:

Verbose output (from npm or node-gyp):

npm ERR! code 1
npm ERR! path F:\Blog\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: D:\Program Files\nodejs\node.exe F:\Blog\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'D:\\Program Files\\nodejs\\node.exe',
npm ERR! gyp verb cli   'F:\\Blog\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.2.0 | win32 | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\node-gyp\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\node-gyp\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` succeeded python E:\Program Files\Python\python.EXE
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: E:\Program Files\Python\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack   File "<string>", line 1
npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack     at ChildProcess.exithandler (node:child_process:326:12)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:365:28)
npm ERR! gyp ERR! stack     at maybeClose (node:internal/child_process:1067:16)
npm ERR! gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
npm ERR! gyp ERR! System Windows_NT 10.0.19043
npm ERR! gyp ERR! command "D:\\Program Files\\nodejs\\node.exe" "F:\\Blog\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd F:\Blog\node_modules\node-sass
npm ERR! gyp ERR! node -v v16.2.0
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\xtex\AppData\Local\npm-cache\_logs\2021-07-03T00_55_52_982Z-debug.log

</details>

I think the problem is at `E:\Program Files\Python\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];`

About this issue

Original URL
State: closed
Created 3 years ago
Reactions: 3
Comments: 18 (7 by maintainers)

Most upvoted comments

How can I install the new version?

F:\Blog>npm install
npm WARN old lockfile
npm WARN old lockfile The package-lock.json file was created with an old version of npm,
npm WARN old lockfile so supplemental metadata must be fetched from the registry.
npm WARN old lockfile
npm WARN old lockfile This is a one-time fix-up, please be patient...
npm WARN old lockfile
npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated debug@4.1.1: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated debug@4.1.1: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated core-js@2.6.12: core-js@<3.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js.
npm ERR! code 1
npm ERR! path F:\Blog\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: D:\Program Files\nodejs\node.exe F:\Blog\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'D:\\Program Files\\nodejs\\node.exe',
npm ERR! gyp verb cli   'F:\\Blog\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.2.0 | win32 | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\node-gyp\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (F:\Blog\node_modules\node-gyp\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\node-gyp\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at F:\Blog\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` succeeded python E:\Program Files\Python\python.EXE
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: E:\Program Files\Python\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack   File "<string>", line 1
npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack     at ChildProcess.exithandler (node:child_process:326:12)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:365:28)
npm ERR! gyp ERR! stack     at maybeClose (node:internal/child_process:1067:16)
npm ERR! gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
npm ERR! gyp ERR! System Windows_NT 10.0.19043
npm ERR! gyp ERR! command "D:\\Program Files\\nodejs\\node.exe" "F:\\Blog\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd F:\Blog\node_modules\node-sass
npm ERR! gyp ERR! node -v v16.2.0
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\xtex\AppData\Local\npm-cache\_logs\2021-07-03T07_39_13_246Z-debug.log

F:\Blog>node-gyp

  Usage: node-gyp <command> [options]

  where <command> is one of:
    - build - Invokes `msbuild` and builds the module
    - clean - Removes any generated build files and the "out" dir
    - configure - Generates MSVC project files for the current module
    - rebuild - Runs "clean", "configure" and "build" all at once
    - install - Install node development files for the specified node version.
    - list - Prints a listing of the currently installed node development files
    - remove - Removes the node development files for the specified version

node-gyp@8.1.0  C:\Users\xtex\AppData\Roaming\npm\node_modules\node-gyp
node@16.2.0

+21

xtexChooser on Jul 3, 2021

py --version # on Windows?

python3 --version

npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax

would only be a SyntaxError on Python 3.

cclauss on Jul 5, 2021

Python 3.9.5 (tags/v3.9.5:0a7dcbd, May 3 2021, 17:27:52) [MSC v.1928 64 bit (AMD64)] on win32

xtexChooser on Jul 3, 2021

Congratulations! Python 3 is properly installed. The problem is that the log still says:

npm ERR! gyp info using node-gyp@3.8.0

This version of node-gyp needs to be upgraded as discussed at: https://github.com/nodejs/node-gyp/blob/master/docs/Updating-npm-bundled-node-gyp.md

cclauss on Jul 7, 2021