README says node-gyp supports only Python2.7 but node-gyp says it doesn't support it

[stephanzlatarev]

tfjs/tfjs-node/README.md

Lines 42 to 44 in f7fa5af

	#### Windows / Mac OS X Requires Python 2.7
	Windows & OSX build support for `node-gyp` requires Python 2.7. Be sure to have this version before installing `@tensorflow/tfjs-node` or `@tensorflow/tfjs-node-gpu`. Machines with Python 3.x will not install the bindings properly.

The error message I receive from node-gyp contradicts the above:

npm ERR! gyp info using node-gyp@9.3.1
npm ERR! gyp info using node@16.20.0 | win32 | x64
npm ERR! gyp ERR! find Python
npm ERR! gyp ERR! find Python Python is not set from command line or npm configuration
npm ERR! gyp ERR! find Python Python is not set from environment variable PYTHON
npm ERR! gyp ERR! find Python checking if "python3" can be used
npm ERR! gyp ERR! find Python - "python3" is not in PATH or produced an error
npm ERR! gyp ERR! find Python checking if "python" can be used
npm ERR! gyp ERR! find Python - executable path is "C:\tools\python2\python.exe"
npm ERR! gyp ERR! find Python - version is "2.7.0"
npm ERR! gyp ERR! find Python - version is 2.7.0 - should be >=3.6.0
npm ERR! gyp ERR! find Python - THIS VERSION OF PYTHON IS NOT SUPPORTED

Is the README statement outdated, or am I doing something wrong?

[gaikwadrahul8]

Hi, @stephanzlatarev

Apologize for the delayed response and I'll try to replicate the same issue from my end on windows machine with python version 2.7 and will check whether I'm also getting the same error message.

I'm not sure at the moment whether we have done any changes w.r.t python version for node-gyp and we haven't updated our official documentation about python version which we support for node-gyp

We'll update soon and thank you for noticing this issue, I really appreciate your time and efforts. Thank you!

[gaikwadrahul8]

Hi, @stephanzlatarev

Apologize for the delayed response and at the moment we don't support python version 2.7 so could you please try with python version >=3.6.0 and we'll update our official documentation once we done testing with python version >=3.6.0 and I tested with python version 3.11 and it's working as expected

Could you please try from your end and let us know whether is it working as expected or not ? Thank you!

[stephanzlatarev]

Hi @gaikwadrahul8,

I've been using tensorflow with Python version 3.11.3 without experiencing problems for more than a month now.

Feel free to close this ticket if you don't need it for updating the documentation.

[gaikwadrahul8]

Hi, @stephanzlatarev

We're doing the testing with python versions >=3.6.0 at the moment and once we're done and everything works as expected, we'll definitely update our official documentation, I really appreciate your efforts and time for bringing this issue to our attention.

Once we update our official documentation after testing with python version >=3.6.0 will update you same here. Thank you!

[gaikwadrahul8]

Hi, @stephanzlatarev

I apologize for the delayed response and I tried to replicate the same issue from my end with python 2.7 version on my windows 10 machine and it's working as expected with Node.js versions Node.js v19.9.0 and Node.js v18.16.1 for reference I have added both the output log and I see node-gyp updated their official documentation with hyperlink supported version python which is 3.8 onwards

I see you were trying with Node.js version 16.20.0 and as per my current understanding with some Node.js version python 2.7 is also working but as far I know we always recommend to use stable python 3.x versions with tfjs-node and it should work.

Our relavant team is working on to update our tfjs-node official documentation and soon will be updated so to confirm, do you want to keep this issue open ? if not, please feel free to close this issue.

Thank you for your understanding and patience.

1. Using Node.js v18.16.1 :

PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> python
Python 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> node --version
v18.16.1
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> npm --version
9.8.0
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> pyenv which python
C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> npm install -g node-gyp --python="C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe"   

changed 99 packages in 9s

14 packages are looking for funding
  run `npm fund` for details
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> npm install --python="C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe" @tensorflow/tfjs-node

up to date, audited 122 packages in 2s

9 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> node .\index.js
2023-11-30 14:07:23.824711: I tensorflow/core/platform/cpu_feature_guard.cc:193] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
Epoch 1 / 3
eta=0.0 ==================================================================================>
3257ms 326us/step - MAE=0.335 loss=0.173 val_MAE=0.320 val_loss=0.157
Epoch 2 / 3
eta=0.0 ==================================================================================>
2434ms 243us/step - MAE=0.281 loss=0.115 val_MAE=0.281 val_loss=0.115
Epoch 3 / 3
eta=0.0 ==================================================================================>
2196ms 220us/step - MAE=0.261 loss=0.0954 val_MAE=0.262 val_loss=0.0960
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node-2.7> 

2. Using Node.js v19.9.0 :

PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> python
Python 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> node --version
v19.9.0
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> npm -v
9.6.3
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> pyenv which python
C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> npm install -g node-gyp --python="C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe"   

changed 99 packages in 8s
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> npm install --python="C:\Users\gaikwadrahul\.pyenv\pyenv-win\versions\2.7.5\python.exe" @tensorflow/tfjs-node

added 121 packages, and audited 122 packages in 2m

9 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
PS C:\Users\gaikwadrahul\Desktop\tfjs-node-testing-for-doc\tfjs-node19-py-2.7> 

[questmapping]

Hi @gaikwadrahul8, I think I've got the same problem on Windows11. I used Anaconda Navigator to install python 3.11.6 and then opened an Admin cmd prompt with conda environment active. This is the result of my installation tryout:

node --version
v21.1.0

npm -v
10.2.3

where python
C:\Users\MightySocks777\anaconda3\envs\base3-11-6\python.exe
C:\Users\MightySocks777\anaconda3\python.exe
C:\Users\MightySocks777\AppData\Local\Microsoft\WindowsApps\python.exe

npm install -g node-gyp --python="C:\Users\MightySocks777\anaconda3\envs\base3-11-6\python.exe"

changed 99 packages in 6s

14 packages are looking for funding
  run `npm fund` for details


npm install --python="C:\Users\MightySocks777\anaconda3\envs\base3-11-6\python.exe" @tensorflow/tfjs-node
npm ERR! code 1
npm ERR! path C:\Node projects\rxdb\examples\vue\node_modules\@tensorflow\tfjs-node
npm ERR! command failed
npm ERR! command C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/install.js
npm ERR! CPU-windows-4.14.0.zip
npm ERR! https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-windows-x86_64-2.9.1.zip
npm ERR! * Downloading libtensorflow
npm ERR!
npm ERR! * Building TensorFlow Node.js bindings
npm ERR! symlink ./lib/napi-v9 failed:  Error: Command failed: node scripts/deps-stage.js symlink ./lib/napi-v9
npm ERR!   * Symlink of lib\napi-v9\tensorflow.dll failed, creating a copy on disk.
npm ERR! node:internal/process/promises:289
npm ERR!             triggerUncaughtException(err, true /* fromPromise */);
npm ERR!             ^
npm ERR!
npm ERR! [Error: ENOENT: no such file or directory, copyfile 'C:\Node projects\rxdb\examples\vue\node_modules\@tensorflow\tfjs-node\deps\lib\tensorflow.dll' -> 'C:\Node projects\rxdb\examples\vue\node_modules\@tensorflow\tfjs-node\lib\napi-v9\tensorflow.dll'] {
npm ERR!   errno: -4058,
npm ERR!   code: 'ENOENT',
npm ERR!   syscall: 'copyfile',
npm ERR!   path: 'C:\\Node projects\\rxdb\\examples\\vue\\node_modules\\@tensorflow\\tfjs-node\\deps\\lib\\tensorflow.dll',
npm ERR!   dest: 'C:\\Node projects\\rxdb\\examples\\vue\\node_modules\\@tensorflow\\tfjs-node\\lib\\napi-v9\\tensorflow.dll'
npm ERR! }
npm ERR!
npm ERR! Node.js v21.1.0
npm ERR!
npm ERR!     at ChildProcess.exithandler (node:child_process:422:12)
npm ERR!     at ChildProcess.emit (node:events:515:28)
npm ERR!     at maybeClose (node:internal/child_process:1105:16)
npm ERR!     at ChildProcess._handle.onexit (node:internal/child_process:305:5) {
npm ERR!   code: 1,
npm ERR!   killed: false,
npm ERR!   signal: null,
npm ERR!   cmd: 'node scripts/deps-stage.js symlink ./lib/napi-v9'
npm ERR! }

npm ERR! A complete log of this run can be found in: C:\Users\MightySocks777\AppData\Local\npm-cache\_logs\2023-12-07T17_34_38_704Z-debug-0.log

I'm attaching the full log
2023-12-07T17_34_38_704Z-debug-0.log

[gaikwadrahul8]

Hi, @questmapping

Thank you for providing the detailed error log and it's known issue it's happening with latest Node.js versions like Node.js v21.1.0 and 20.10.0 LTS, our relevant team is working on this issue and will update you soon.

At the moment workaround is downgrading the Node.js version to either v18.16.1 or v19.9.0 so please give it try and let us know is it working as expected or not ?

I would suggest you to create new issue with your error log for issue tracking purpose on Windows 11 system and above workaround I have tested on Windows 10 system.

Thank you for your understanding and patience.

[questmapping]

At the moment workaround is downgrading the Node.js version to either v18.16.1 or v19.9.0 so please give it try and let us know is it working as expected or not ?

By Downgrading to v19.9.0 it works like a charm

[david-laiier]

Hi I've just found this thread after dealing with a similar issue, my setup is Ubuntu 22.04.3 LTS :

sudo npm install @tensorflow/tfjs-node -g
npm ERR! code 1
npm ERR! path /usr/local/lib/node_modules/@tensorflow/tfjs-node
npm ERR! command failed
npm ERR! command sh -c node scripts/install.js

npm ERR! A complete log of this run can be found in: /root/.npm/_logs/2023-12-11T12_36_13_948Z-debug-0.log

npm --version
10.2.5
node --version
v18.18.0

When I downgraded to node v18.16.1 as suggested install succeeded:

sudo npm install -g node@v18.16.1

added 2 packages in 7s
sudo npm install @tensorflow/tfjs-node -g --verbose
npm verb cli /usr/local/lib/node_modules/node/bin/node /usr/local/bin/npm
npm info using npm@10.2.5
npm info using node@v18.16.1
npm WARN cli npm v10.2.5 does not support Node.js v18.16.1. This version of npm supports the following node versions: `^18.17.0 || >=20.5.0`. You can find the latest version at https://nodejs.org/.
npm verb title npm install @tensorflow/tfjs-node
npm verb argv "install" "@tensorflow/tfjs-node" "--global" "--loglevel" "verbose"
npm verb logfile logs-max:10 dir:/root/.npm/_logs/2023-12-11T12_47_19_033Z-
npm verb logfile /root/.npm/_logs/2023-12-11T12_47_19_033Z-debug-0.log
npm http fetch GET 200 https://registry.npmjs.org/@tensorflow%2ftfjs-node 8ms (cache hit)
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npm info run @tensorflow/tfjs-node@4.14.0 install node_modules/@tensorflow/tfjs-node node scripts/install.js
npm info run @tensorflow/tfjs-node@4.14.0 install { code: 0, signal: null }
npm info run core-js@3.29.1 postinstall node_modules/@tensorflow/tfjs-node/node_modules/core-js node -e "try{require('./postinstall')}catch(e){}"
npm info run core-js@3.29.1 postinstall { code: 0, signal: null }

added 121 packages in 7s

9 packages are looking for funding
  run `npm fund` for details
npm verb exit 0
npm info ok

node --version
v18.16.1

Hope the install is fixed soon for the newer Node version, good luck!

[gaikwadrahul8]

Hi, @stephanzlatarev

I apologize for the delay in my response. I have addressed the issue in Pull Request #8101. Please note that due to the upcoming Christmas and New Year holidays, the review and merge process may take longer than usual. If you believe this PR resolves the issue, please feel free to close this issue.

Thank you for your patience and understanding.

[github-actions]

This issue has been marked stale because it has no recent activity since 7 days. It will be closed if no further activity occurs. Thank you.

[github-actions]

This issue was closed due to lack of activity after being marked stale for past 7 days.