feat: adaptive (self-healing) selectors + logo, docs, bump to 1.5.1 - #126
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Adaptive selectors on Selector.css: auto_save=True fingerprints the matched element, adaptive=True relocates it by similarity when the selector later returns nothing, so scrapers survive site redesigns. Relocation improves on a naive similarity match on four fronts: weighted signals (a stable id/data-* hook outweighs weak ones instead of a flat average), anchor-relative fingerprints (nearest stable ancestor + depth, surviving path reshuffles), volatility-aware text (prices/dates/counts down-weighted), and tag-pruning before scoring. Returns a confidence + runner-up gap; fingerprints persist in a JSON store namespaced by site. 16 adaptive tests incl. relocation across a full redesign and a comparison showing the weighted scorer beats a uniform average. Docs: add the logo header, an adaptive-selectors section, a new title, and replace the tool/scraper tables with prose + a list command (the OMDb key note stays). Bump to 1.5.1.
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Adaptive (self-healing) selectors
Selector.cssgainsauto_save=True(fingerprint the matched element) andadaptive=True(relocate it by similarity when the selector later returns nothing), so scrapers survive site redesigns instead of silently breaking.Relocation improves on a naive similarity match on four fronts:
id/data-*hook far outweighs a sibling-tag list, so weak signals cannot dilute strong ones.Returns a confidence score + runner-up gap (
SelectorList.adaptive_confidence); fingerprints persist in a JSON store namespaced by site. Entirely opt-in — withoutadaptive=True, a broken selector returns empty exactly as before.Docs & polish
public/logo.png) + new title.Tests
16 adaptive tests, including relocation across a full redesign and a comparison showing the weighted scorer beats a uniform average on a volatile-text decoy that fools the uniform one. Full suite: 472 passed.
ruff check+ruff formatclean.