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This is what they sent me, they had been stuck for days on it:

20 × Preparing metadata (pyproject.toml) did not run successfully. 

21 │ exit code: 1 

22 ╰─> [29 lines of output] 

23 Traceback (most recent call last): 

24 File "/opt/hostedtoolcache/Python/3.11.0/x64/lib/python3.11/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 144, in prepare_metadata_for_build_wheel 

25 hook = backend.prepare_metadata_for_build_wheel 

26 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 

27 AttributeError: module 'hatchling.build' has no attribute 'prepare_metadata_for_build_wheel'

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The actual error was that they didn't have project.optional-dependencies, instead they had project.optional.dependancies

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(At least I'm guessing that's the error looking at their pyproject.toml)

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