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Deterministic tracing profiler and a low-overhead statistical sampling profiler named <strong>Tachyon</strong>, backported from CPython 3.15 to 3.14. Exports flame graphs, pstats, Gecko profiles, JSONL and more.
A fully hashable, immutable mapping type — the <code>frozendict</code> proposed for the standard library, available today on every supported Python version.
Implementation of <strong>PEP 690</strong> — Lazy Imports. Defer module imports until first use to slash startup time and memory footprint of large applications.
Backport of <strong>PEP 769</strong> — a standardized sentinel object for default arguments. Replace <code>None</code>, <code>object()</code> and bespoke sentinels with a clean, well-typed API.
The home of public discussions, Q&A, roadmaps and proposals. Bring your ideas, ask questions, or help triage compatibility issues across the whole org.
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<span>🗣️ forum · RFCs</span>
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<span>MIT</span>
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<ahref="https://github.com/pythonbackport/profiling" target="_blank" rel="noopener" class="project-card reveal"><divclass="project-head"><divclass="project-title"><span>profiling</span></div></div><divclass="project-desc">Deterministic tracing profiler and a low-overhead statistical sampling profiler named Tachyon, backported from CPython 3.15 to 3.14. Exports flame graphs, pstats, Gecko profiles, JSONL and more.</div><divclass="project-meta"><span>★ 12</span><span>python · profiling · sampling</span><span>MIT</span></div></a>
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<ahref="https://github.com/pythonbackport/frozendict" target="_blank" rel="noopener" class="project-card reveal"><divclass="project-head"><divclass="project-title"><span>frozendict</span></div></div><divclass="project-desc">A fully hashable, immutable mapping type — the frozendict proposed for the standard library, available today on every supported Python version.</div><divclass="project-meta"><span>★ 7</span><span>python · immutable · hashable</span><span>MIT</span></div></a>
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<ahref="https://github.com/pythonbackport/lazyimports" target="_blank" rel="noopener" class="project-card reveal"><divclass="project-head"><divclass="project-title"><span>lazyimports</span></div><spanclass="project-tag">PEP-690</span></div><divclass="project-desc">Implementation of PEP 690 — Lazy Imports. Defer module imports until first use to slash startup time and memory footprint of large applications.</div><divclass="project-meta"><span>★ 4</span><span>python · pep-690 · lazy-import</span><span>MIT</span></div></a>
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<ahref="https://github.com/pythonbackport/sentinel" target="_blank" rel="noopener" class="project-card reveal"><divclass="project-head"><divclass="project-title"><span>sentinel</span></div><spanclass="project-tag">PEP-769</span></div><divclass="project-desc">Backport of PEP 769 — a standardized sentinel object for default arguments. Replace None, object() and bespoke sentinels with a clean, well-typed API.</div><divclass="project-meta"><span>★ 2</span><span>python · pep-769 · typing</span><span>MIT</span></div></a>
<pclass="section-desc">Discussion hubs, RFCs and meta-repositories for the org.</p>
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<ahref="https://github.com/pythonbackport/community" target="_blank" rel="noopener" class="project-card reveal"><divclass="project-head"><divclass="project-title"><span>community</span></div></div><divclass="project-desc">The home of public discussions, Q&A, roadmaps and proposals for the pythonbackport organization.</div><divclass="project-meta"><span>★ 1</span><span>discussions · community · forum</span><span>MIT</span></div></a>
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