Question
How to install Python requirements with serverless function?
- Posted on February 13, 2023
- Serverless
Asked by sirthomasii
I tried everything in This question
I can’t get the virtual environment to use the installed packages.
using virtualenv yielded a “command not found” error
the following .sh file will run and ostensibly install the packages when running doctl serverless deploy
set -e
#virtualenv virtualenv
python3 -m venv virtualenv
source virtualenv/bin/activate
sudo pip3 install -r requirements.txt --target virtualenv/lib/python3.9/site-packages
deactivate
but getting “No module found” errors at runtime.
Documentation for functions is lackluster at best. How can it be so difficult to simply install requirements?
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The answer from my colleague that you linked is the correct approach, but I do notice that it’s a bit out of date. We now recommend customers exclude dependencies like pip from the virtual env.
Check out https://github.com/digitalocean/sample-functions-python-jokes for an example. Note the file https://github.com/digitalocean/sample-functions-python-jokes/blob/master/packages/joke/joke/build.sh in particular.
We have heard feedback that it could use more information. We’re working on updates right now. Feel free to give feedback about docs using our official feedback platform too (https://ideas.digitalocean.com/).
Regarding the function you’re trying to deploy here, feel free to respond here or open a support ticket if it’s still not working for you after following the example I linked.