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Railway•6mo ago

absolute newbie: how can I use python 3.12 and django 5.0 when I deploy my app?

project ID: 6ec4e69f-153c-42b1-8399-d4fbd6db04fb I have a django app that runs happily on my computer but when I try and deploy to railway I get errors saying that it is using python38, despite having a runtime.txt file with "Python 3.12.1" in it (I have no idea if that is the right thing to do, but it was what one of the few recent-ish youtube tutorials I could find suggested). Would someone be able to tell me/link to a way for me to use the latest version of python? Thanks!

55 Replies

Percy•6mo ago

Project ID: 6ec4e69f-153c-42b1-8399-d4fbd6db04fb

Brody•6mo ago

I have no idea if that is the right thing to do

yes it is, however nixpacks does not currently support python 3.12, the latest nixpacks supports is 3.11

meaniebeanie22•6mo ago

3.11 would probably work - would you be able to tell me how to take my django project and wrap it up with a pretty bow for railway? 😄

Brody•6mo ago

put 3.11 into your runtime.txt and redeploy

meaniebeanie22•6mo ago

just 3.11 or "Python 3.11"?

Brody•6mo ago

either should work

meaniebeanie22•6mo ago

found this in the logs after a build fail:

#10 20.59 Building wheels for collected packages: pycairo, svglib

#10 20.59   Building wheel for pycairo (pyproject.toml): started

 

#10 20.90   error: subprocess-exited-with-error

#10 20.90

#10 20.90   × Building wheel for pycairo (pyproject.toml) did not run successfully.

#10 20.90   │ exit code: 1

#10 20.90       running build

#10 20.90       creating build

 

#10 20.90       copying cairo/__init__.py -> build/lib.linux-x86_64-cpython-311/cairo

#10 20.90       copying cairo/py.typed -> build/lib.linux-x86_64-cpython-311/cairo

#10 20.90       Package cairo was not found in the pkg-config search path.

#10 20.90       to the PKG_CONFIG_PATH environment variable

#10 20.59 Building wheels for collected packages: pycairo, svglib

#10 20.59   Building wheel for pycairo (pyproject.toml): started

 

#10 20.90   error: subprocess-exited-with-error

#10 20.90

#10 20.90   × Building wheel for pycairo (pyproject.toml) did not run successfully.

#10 20.90   │ exit code: 1

#10 20.90       running build

#10 20.90       creating build

 

#10 20.90       copying cairo/__init__.py -> build/lib.linux-x86_64-cpython-311/cairo

#10 20.90       copying cairo/py.typed -> build/lib.linux-x86_64-cpython-311/cairo

#10 20.90       Package cairo was not found in the pkg-config search path.

#10 20.90       to the PKG_CONFIG_PATH environment variable

Brody•6mo ago

full build logs please https://bookmarklets.up.railway.app/log-downloader/

meaniebeanie22•6mo ago

there ye go!

build_logs_tkd-manag...

Brody•6mo ago

try adding this as a nixpacks.toml file to your project

[phases.setup]
  aptPkgs = ['...', 'libcairo2-dev', 'pkg-config', 'python3-dev']

[phases.setup]
  aptPkgs = ['...', 'libcairo2-dev', 'pkg-config', 'python3-dev']

meaniebeanie22•6mo ago

in the same dir as runtime.txt?

Brody•6mo ago

yep

meaniebeanie22•6mo ago

another build fail, pycairo

build_logs_tkd-manag...

Brody•6mo ago

ive updated this, try again please

meaniebeanie22•6mo ago

still cant build wheels

build_logs_tkd-manag...

Brody•6mo ago

alright time to abandon nixpacks, delete the nixpacks.toml file and then create a Dockerfile with this in it

FROM python:3.12.1-slim

ENV PYTHONUNBUFFERED=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    pkg-config \
    libcairo2-dev \
    python3-dev

WORKDIR /app

COPY requirements.txt ./

RUN pip install -r requirements.txt

COPY . ./

CMD gunicorn tkdmanager.wsgi --log-file -

FROM python:3.12.1-slim

ENV PYTHONUNBUFFERED=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    pkg-config \
    libcairo2-dev \
    python3-dev

WORKDIR /app

COPY requirements.txt ./

RUN pip install -r requirements.txt

COPY . ./

CMD gunicorn tkdmanager.wsgi --log-file -

meaniebeanie22•6mo ago

here's the repo https://github.com/meaniebeanie22/tkd-manager

GitHub

GitHub - meaniebeanie22/tkd-manager

Contribute to meaniebeanie22/tkd-manager development by creating an account on GitHub.

Brody•6mo ago

delete your Procfile while youre at it

meaniebeanie22•6mo ago

deploying...

Brody•6mo ago

ah good then we have made it farther

meaniebeanie22•6mo ago

sad gunicorn in deploy logs

usage: gunicorn [OPTIONS] [APP_MODULE]

gunicorn: error: argument --error-logfile/--log-file: expected one argument

usage: gunicorn [OPTIONS] [APP_MODULE]

gunicorn: error: argument --error-logfile/--log-file: expected one argument

Brody•6mo ago

updated, forgot a dash lol

meaniebeanie22•6mo ago

back at it again when railway does environment variables are they all strings?

Brody•6mo ago

environment variables on any platform or even any OS will always be strings

meaniebeanie22•6mo ago

beans

Brody•6mo ago

why is that beans? that doesnt stop you from setting numbers, the numbers will just be stored as a string

meaniebeanie22•6mo ago

i had debug set to DEBUG = os.environ.get("DEBUG", True) so a string of "False" still == True

Brody•6mo ago

yeah you'd need to parse a string to a bool

meaniebeanie22•6mo ago

ill just check if the string == "False" and if so then set DEBUG = False

Brody•6mo ago

that also works

meaniebeanie22•6mo ago

oh and this

No description

meaniebeanie22•6mo ago

ALLOWED_HOSTS = ["*"]

Brody•6mo ago

thats more so just a generic error, not all that related to deploying on railway, im sure there are a bunch of great tutorials for setting up csrf, that page even tells you a lot of what you need to know

meaniebeanie22•6mo ago

was working a minute ago with py -3 manage.py runserver

Brody•6mo ago

thats a development server, absolutely not something you want to be running on railway

meaniebeanie22•6mo ago

yeah I know not really sure how to fix all this though :D

Brody•6mo ago

i am not a python developer myself, so this is about all the advice i can offer you

meaniebeanie22•6mo ago

ahh okay will try adding https:// *.railway.app to CSRF_TRUSTED_ORIGINS after that i have to figure out getting the database to work because atm it just sits in my repo with the other bits in a default config

Brody•6mo ago

yeah please dont use sqlite going forward

meaniebeanie22•6mo ago

no volume or other db in the railway thing

Brody•6mo ago

postgres would be your best bet

meaniebeanie22•6mo ago

it was the default and it just worked so I haven't needed to change until now where i wanted to see if i could get something to deploy

Brody•6mo ago

thats fair

meaniebeanie22•6mo ago

okay some of the css is a tad dodgy but thats something I can probably fix if i want to add requirements i should just add them to requirements.txt right and everything should work?

Brody•6mo ago

yep that works all the same with the dockerfile I've provided

meaniebeanie22•6mo ago

cheers mate!

Brody•6mo ago

Cheers!

meaniebeanie22•6mo ago

Is there any way that I can take my freshly migrated postgres database and upload its contents to railway?

Brody•6mo ago

you have a local postgres database?

meaniebeanie22•6mo ago

yes made one and migrated my sqlite3 one across

Brody•6mo ago

then you would want to look into pg_dump and pg_restore

meaniebeanie22•6mo ago

thanks!

meaniebeanie22•6mo ago

Database migrated (or at least i think so - all the tables i can understand) now the issue is i am apparently getting too many redirects

No description

meaniebeanie22•6mo ago

fixed! add

SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

to settings.py

Brody•6mo ago

I may not be a python developer but I'm still able to understand right and wrong, and that is indeed the right way to solve that issue

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