Lucen

Lucen is a source-to-source compiler that automatically parallelizes ordinary Python loops using comment pragmas. It parallelizes only the loops it can prove are both safe and worthwhile, and guarantees that a parallel run is bit-identical to the same file executed as plain sequential Python.

import lucen
lucen.activate()

# LUCEN START
for i in range(len(records)):
    scores[i] = score(records[i])
# LUCEN END

The quickstart is the README. Everything else is on this site.

Guides

• Limitations, known gaps and the trust contract
• Benchmarks, measurements across seven interpreters
• Stability policy, what is stable and what may change
• Roadmap, what is planned and in what order
• Changelog, what changed in each release

Reference

• Architecture, the pipeline and dispatch flow with diagrams
• Pragma and clause reference, every pragma and clause
• API reference, generated from the public API
• Glossary, the domain terms in one place
• Paper, the design and evaluation
• Technical specification
• Engineering guide
• Formal specifications
• Architecture decisions

Project

• Getting support, where to take a question, a bug, or a security report
• Contributing, how to get a change merged