Python 3.10 AWS Lambda incompatibility - Amazon Linux 2

[christian-repos]

Hello everyone!

I tried to build and package the latest version of the WeasyPrint library (59.0) and its native dependencies into an AWS Lambda layer for the Python 3.10 runtime. I am using the image "public.ecr.aws/sam/build-python3.10", which offers Pango 1.42.3 via the yum package manager. As the library requires Pango ≥ 1.44.0, it doesn't work.

I tried to follow the instructions to build from source for Pango-1.50.14 and all the dependencies from https://www.linuxfromscratch.org/blfs/view/svn/x/pango.html, but I am not able to get Pango working.
 
Following #1003, I managed to get WeasyPrint 52.5 to work with python 3.10. However, I would really need the latest version.

Can somebody provide a solution for this, please?

[liZe]

Hi!

Can somebody provide a solution for this, please?

It should be possible to compile Pango and its dependencies, but that’s probably not easy, and I don’t know AWS enough to help you for that 😢.

But… Amazon Linux 2023 has been released, and it includes Pango 1.48. Is it possible for you to use Amazon Linux 2023 instead of Amazon Linux 2?

[liZe]

Otherwise, Kotify updated their layer to use Docker with more recent packages.

[christian-repos]

Hi!

Can somebody provide a solution for this, please?

It should be possible to compile Pango and its dependencies, but that’s probably not easy, and I don’t know AWS enough to help you for that 😢.

But… Amazon Linux 2023 has been released, and it includes Pango 1.48. Is it possible for you to use Amazon Linux 2023 instead of Amazon Linux 2?

I tried actually using the Amazon Linux 2023 image, where I manually installed Python 3.10 from source and used the yum provided Pango 1.48, but I failed to get a compatible layer for the Python 3.10 AWS Lambda runtime. Most likely, I did something wrong.

Anyway, thank you for your response!

[liZe]

Feel free to add a comment if there’s something more we can do for you!