Unable to build from source

[adamjstewart]

Issue Description

I'm trying to build arrow 1.3.0 but it fails with the following mysterious error message:

  ModuleNotFoundError: No module named 'arrow'

Full build log

System Info

• 🖥 OS name and version: macOS 15.0
• 🐍 Python version: 3.11.9
• 🏹 Arrow version: 1.3.0

[krisfremen]

Hey @adamjstewart,

It seems like this might be a naming collision of some sorts? I'm not able to reproduce this, can you provide some repro steps?

Thanks

[adamjstewart]

I'm having trouble reproducing this now as well. Let's close for now and I'll reopen if I encounter this again.

[adamjstewart]

Okay, I'm hitting this issue again. Digging deeper, the issue isn't a naming collision (which could arise if something else named arrow.py was in the PYTHONPATH). Instead, import arrow doesn't work either. Printing sys.path reveals that '' is missing, meaning the current directory is not searched. Not sure if this is pip's fault or flit's fault, but it's probably not arrow's fault. I'm just confused why I'm only seeing an issue with this package.

[adamjstewart]

FWIW, arrow 1.2.3 installs just fine. It's only the newer flit build that has issues.

[adamjstewart]

@haampie could this be due to Spack's new Python build isolation? I can't reproduce outside of Spack.