Railway•14mo ago

Python not available after recent update(?)

Hiya! I've been deploying via Railway for almost a year now - and it's been great! Starting three days ago, all my builds are failing with the error message Python is not set from command line or npm configuration while building node-gyp. I am deploying JS using yarn. Did a recent update to Railway change anything? Is the default image now more lightweight, meaning Python isn't included? And if so, is there a way to do this while avoiding a custom Dockerfile? I could try to guess the python location and set it as an environment variable, but that seems very brittle... Thanks! --- Project ID: 07fcde41-284c-48e1-83d0-a92b28b116fc Full error:

#10 18.45 gyp ERR! find Python Python is not set from environment variable PYTHON

#10 18.45 gyp ERR! find Python checking if "python3" can be used

#10 18.45 gyp ERR! find Python - "python3" is not in PATH or produced an error

#10 18.45 gyp ERR! find Python checking if "python" can be used

#10 18.45 gyp ERR! find Python - "python" is not in PATH or produced an error

#10 18.45 gyp ERR! find Python

#10 18.45 gyp ERR! find Python

#10 18.45 gyp ERR! find Python Python is not set from environment variable PYTHON

#10 18.45 gyp ERR! find Python checking if "python3" can be used

#10 18.45 gyp ERR! find Python - "python3" is not in PATH or produced an error

#10 18.45 gyp ERR! find Python checking if "python" can be used

#10 18.45 gyp ERR! find Python - "python" is not in PATH or produced an error

#10 18.45 gyp ERR! find Python

#10 18.45 gyp ERR! find Python

Solution:

FIXED by removing 2 dependencies that were depneding on old versions of node-gyp (incompatible with Node 18) Didn't end up needing the nixpacks.toml Thanks a ton @Brody for pointing me in the right direction, though! Appreciated 🚀...

Jump to solution

16 Replies

Percy•14mo ago

Project ID: 07fcde41-284c-48e1-83d0-a92b28b116fc

Brody•14mo ago

python was never a part of a javascript deployment before

lukasgjetting•14mo ago

Just tried to redeploy that latest succeeding deployment - which also failed. So doesn't seem like it's a new dependency on my side Oh, that's odd then

Brody•14mo ago

very, but yeah it can be added, add this to a nixpacks.toml file in your project

[phases.setup]
  nixPkgs = ['...', 'python38', 'gcc']

[phases.setup]
  nixPkgs = ['...', 'python38', 'gcc']

lukasgjetting•14mo ago

Thanks! Sorry if this is a dumb question, but should I include the '...' part? Currently have no nixpacks.toml file

Brody•14mo ago

yes you should

lukasgjetting•14mo ago

Awesome thanks - will report back with result

Brody•14mo ago

its an array extension, if you left it out python38 would then be the only thing added during build, but we want to add python on to the packages that are added by default, like node, and yarn

lukasgjetting•14mo ago

Getting a new error now... seems like it's now missing g++?

#10 24.26 gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]

#10 24.26 make: Entering directory '/app/node_modules/deasync/build'

#10 24.26   CXX(target) Release/obj.target/deasync/src/deasync.o

#10 24.26 make: g++: No such file or directory

#10 24.26 make: *** [deasync.target.mk:107: Release/obj.target/deasync/src/deasync.o] Error 127

#10 24.26 make: Leaving directory '/app/node_modules/deasync/build'

#10 24.26 gyp ERR! build error

#10 24.26 gyp ERR! stack Error: `make` failed with exit code: 2

#10 24.26 gyp ERR! stack     at ChildProcess.onExit (/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:203:23)

#10 24.26 gyp ERR! stack     at ChildProcess.emit (node:events:514:28)

#10 24.26 gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:291:12)

#10 24.26 gyp ERR! System Linux 5.10.0-25-cloud-amd64

#10 24.26 gyp ERR! command "/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/bin/node" "/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"

#10 24.26 gyp ERR! cwd /app/node_modules/deasync

#10 24.26 gyp ERR! node -v v18.17.1

#10 24.26 gyp ERR! node-gyp -v v9.3.1

#10 24.26 gyp ERR! not ok

#10 24.26 Build failed

#10 24.26 info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this

#10 24.26 gyp info spawn args [ 'BUILDTYPE=Release', '-C', 'build' ]

#10 24.26 make: Entering directory '/app/node_modules/deasync/build'

#10 24.26   CXX(target) Release/obj.target/deasync/src/deasync.o

#10 24.26 make: g++: No such file or directory

#10 24.26 make: *** [deasync.target.mk:107: Release/obj.target/deasync/src/deasync.o] Error 127

#10 24.26 make: Leaving directory '/app/node_modules/deasync/build'

#10 24.26 gyp ERR! build error

#10 24.26 gyp ERR! stack Error: `make` failed with exit code: 2

#10 24.26 gyp ERR! stack     at ChildProcess.onExit (/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:203:23)

#10 24.26 gyp ERR! stack     at ChildProcess.emit (node:events:514:28)

#10 24.26 gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:291:12)

#10 24.26 gyp ERR! System Linux 5.10.0-25-cloud-amd64

#10 24.26 gyp ERR! command "/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/bin/node" "/nix/store/fg86njc0q2djbyfaqvnaq7x0khpc6sf4-nodejs-18.17.1/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"

#10 24.26 gyp ERR! cwd /app/node_modules/deasync

#10 24.26 gyp ERR! node -v v18.17.1

#10 24.26 gyp ERR! node-gyp -v v9.3.1

#10 24.26 gyp ERR! not ok

#10 24.26 Build failed

#10 24.26 info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this

Brody•14mo ago

updated

lukasgjetting•14mo ago

Thanks - still failing though... Ahhh I see! Node was updated from 16_x to 18_x Node 16 is EOL, so it makes sense Which might trigger node-gyp to do a fresh build Is there a place where I can see all the nixpack aliases for different packages? Or does it match apt-get or similar repo?

Brody•14mo ago

https://search.nixos.org/packages

lukasgjetting•14mo ago

Perfect, thanks Brody! Will update this thread when I find a solution

Brody•14mo ago

send the build logs? https://bookmarklets.up.railway.app/log-downloader/

Solution

lukasgjetting•14mo ago

Brody•14mo ago

awsome glad you where able to solve it! and you even came to the appropriate solution, mixing languages is not the best option

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Python not available after recent update(?)