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Changelog

0.2.0

  • find_net_difference() (renamed from find_open_nets) — compares two netlists by symmetric difference on their sorted nets, returning {"missing": [Net, ...], "extra": [Net, ...]} instead of the previous flat list. The new structure distinguishes nets absent from the layout (missing) vs. unexpected nets (extra).
  • normalize() replaces lvs_equivalent() — the method name was changed to better reflect its purpose: fold equivalent ports into canonical names and merge nets sharing a canonical reference. The API and behaviour are unchanged.
  • Python 3.14 support — classifier and CI testing added.

0.1.5

  • L2N parsing — parse_l2n() and l2n_to_json() convert a klayout LayoutToNetlist to a JSON-serializable dict (or string) with optional hierarchy flattening and layer/instance filtering
  • Geometric short detection — detect_shorts() finds polygon overlaps between electrically distinct nets on the same layer
  • Open detection — Netlist.detect_opens() finds unconnected ports and singleton nets; Netlist.find_net_difference(reference) compares against a reference netlist to find missing and extra nets

0.1.0

Initial release.

  • Rust-backed core types: Netlist, Net, NetlistPort, PortRef, PortArrayRef, NetlistInstance, NetlistArray
  • Full JSON/dict serialization on all types
  • Pydantic v2 integration (__get_pydantic_core_schema__)
  • Netlist.normalize() for folding electrically-equivalent ports
  • Netlist.flatten_instances() for merging sub-cell instances
  • PortCheck bitmask and check_connection() for geometric port comparison
  • kfnetlist.extract subpackage for hierarchical netlist extraction from layout cells