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Implement Obol, a compiler pipeline for compiling imperative Python to Styx code#40

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Implement Obol, a compiler pipeline for compiling imperative Python to Styx code#40
AlexDimakos wants to merge 4 commits into
delftdata:mainfrom
AlexDimakos:main

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@AlexDimakos

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This PR introduces Obol, a compiler-driven framework that allows developers to write distributed stateful workflows as standard sequential, object-oriented Python code. Obol automatically transforms these high-level structures into the asynchronous message-passing operator chains required by the Styx runtime while strictly preserving Styx’s serializable, exactly-once transactional guarantees.

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codecov Bot commented Jun 18, 2026

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Codecov Report

❌ Patch coverage is 36.00000% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.44%. Comparing base (d09e58c) to head (7627788).

Files with missing lines Patch % Lines
styx-package/styx/common/stateful_function.py 30.00% 14 Missing ⚠️
styx-package/styx/local_runner/local_state.py 60.00% 2 Missing ⚠️
Additional details and impacted files

Impacted file tree graph

@@            Coverage Diff             @@
##             main      #40      +/-   ##
==========================================
- Coverage   86.92%   86.44%   -0.48%     
==========================================
  Files          45       45              
  Lines        2661     2685      +24     
==========================================
+ Hits         2313     2321       +8     
- Misses        348      364      +16     
Flag Coverage Δ
coordinator 93.40% <ø> (ø)
integration 8.97% <0.00%> (-0.09%) ⬇️
styx-package 81.97% <36.00%> (-0.80%) ⬇️
worker 83.69% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines Coverage Δ
styx-package/styx/local_runner/local_state.py 93.10% <60.00%> (-6.90%) ⬇️
styx-package/styx/common/stateful_function.py 88.65% <30.00%> (-9.71%) ⬇️
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