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Log: v0.9.0 — Discovery Hardening & Legacy Cleanup

Issues closed: #127, #130, #148, #149, #150, #158, #159, #160, #161, #163, #167

Overview

v0.9.0 finishes the AUTO-discovery hardening pass started in v0.8.0, removes the long-deprecated UUTHandler, and closes out several documentation gaps flagged during the v0.8.0 bug bash.

Cleanup: Deprecated UUTHandler Removed (#127)

UUTHandler in src/instrumation/device.py was deprecated since v0.2.0 with a warning promising removal in v0.3.0, and was still shipping at v0.8.0. device.py is now deleted, along with the top-level connect() convenience wrapper in __init__.py that existed solely to construct it. search_devices()/scan() are unaffected. examples/common/my_test_bench.py now demonstrates transport.SerialDriver used directly instead.

Breaking change: code importing instrumation.UUTHandler or calling instrumation.connect() must migrate to factory.get_instrument() (VISA) and transport.SerialDriver (serial) directly.

VISA Resource Manager Lifecycle (#161)

Added factory.close_rm() to release the process-wide cached pyvisa.ResourceManager. Useful for long-running processes switching VISA backends, releasing the OS-level handle when instrument access is no longer needed, or giving tests full VISA-state isolation between runs. The next get_rm() call transparently recreates the manager.

AUTO-Discovery & Transport Hardening (carried from the pre-release fix batch)

  • #149 — IDN-probe exception handling narrowed to expected transport errors instead of a broad except Exception, so genuine programming errors surface loudly.
  • #150 — TDK-Lambda's ASRL handshake is now gated to explicit connections; AUTO discovery no longer sends vendor-specific commands to arbitrary serial devices.
  • #159 — AUTO-discovery candidate ordering now uses real transport priority tiers (LAN > USB > GPIB > serial) instead of a naive boolean sort key.
  • #163 — VisaDriver.write harmonized with query_value's forgiving error contract.
  • #130 — ReplayDriver getters read golden-master responses with fallbacks.
  • #160 — Simulated-driver filtering uses the explicit is_simulated class flag instead of fragile class-name string matching.

Documentation

  • #148 — DriverRegistry's docstring now documents the canonical type-key concept and explicitly describes "GENERIC" as an always-registered fallback key; docs/supported_instruments.md gained a GENERIC section.
  • #167 — docs/supported_instruments.md states the Validated/Assumed-compatible convention up front and documents Keysight34461A's two distinct IDN-routed model families (Truevolt vs. legacy) with a per-model compatibility table, since only 34461A is verified against real hardware.
  • #158 — ROADMAP.md's bug table reconciled against actual code/issue state: corrected issue-number mappings, closed items that were still listed open, the v0.8.0/v0.9.0 fix batch, and the Dashboard section reframed as "Planned".

Test Suite

521 → 517 tests (net -4 after removing UUTHandler-specific coverage that no longer applies), plus 3 new tests for close_rm(). Full suite green across Python 3.9–3.13.