Pycoders iconPycodersSep 22, 2026 ~1 min source read

PyCoder’s Weekly: Issue #753: frozendict, pytest Plugins, re.prefixmatch(), and More (2026-09-22)

RWX is CI/CD rebuilt for the agentic dev cycle: content-based caching, graph-based task execution, and agent sandboxes that share config and cache with CI. #753 – SEPTEMBER 22, 2026 View in Browser » Python 3.15 Preview: frozendict Preview Python 3.15's frozendict: build immutable mappings you can hash, cache, and share across threads, and learn where the freeze stops.

PyCoder’s Weekly: Issue #753: frozendict, pytest Plugins, re.prefixmatch(), and More (2026-09-22)
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Python 3.15 Preview: frozendict REAL PYTHON claude -p "migrate our CI config to RWX" Python is powering AI.

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#753 – SEPTEMBER 22, 2026 View in Browser » Python 3.15 Preview: frozendict Preview Python 3.15's frozendict: build immutable mappings you can hash, cache, and share across threads, and learn where the freeze stops. Python 3.15 Preview: frozendict REAL PYTHON claude -p "migrate our CI config to RWX" Python is powering AI. RWX is CI/CD rebuilt for the agentic dev cycle: content-based caching, graph-based task execution, and agent sandboxes that share config and cache with CI.

How it works

  • Teams at Honeycomb, ClickFunnels, and Verkada have already switched.
  • See Why Engineers Love RWX → rwx.com RWX (READWRITEEXECUTE) sponsor pytest Plugins That Actually Change.
  • Peyton tests: pytest-httpx for HTTP mocking, pytest-randomly for order-dependency detection,...

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