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motief/thoughts/ledgers/CONTINUITY_ses_2b07.md

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session updated
ses_2b07 2026-04-02T19:01:27.654Z

Session Summary

Goal

Execute Task 2 from the SVD Label Unification implementation plan: refactor explorer.py to export SVD_THEMES at module level and update analysis/svd_labels.py to import it properly.

Constraints & Preferences

  • Follow TDD principles: run tests before/after changes
  • Make minimal changes to accomplish the task
  • Preserve all existing SVD_THEMES data (10 components with labels, explanations, poles, flip settings)
  • Ensure no circular import issues between explorer.py and analysis/svd_labels.py

Progress

Done

  • Ran baseline tests (4 tests passed in tests/test_svd_labels.py)
  • Moved SVD_THEMES dict from inside build_svd_components_tab function (line ~2639) to module level in explorer.py (after PARTY_COLOURS, line 434)
  • Removed duplicate SVD_THEMES definition from inside build_svd_components_tab function
  • Updated _get_svd_themes() function in analysis/svd_labels.py to import directly from explorer module instead of using complex importlib.util fallback
  • Verified all 4 tests still pass after changes
  • Confirmed SVD_THEMES is now accessible at module level in explorer.py for external import

In Progress

  • Commit the changes (changes staged but not yet committed)

Blocked

  • (none)

Key Decisions

  • Import method: Use direct import explorer and access explorer.SVD_THEMES instead of importlib.util machinery. Rationale: Now that SVD_THEMES is at module level, the direct import is clean and the lazy runtime import in _get_svd_themes() prevents circular dependencies at module load time.
  • Module placement: Placed SVD_THEMES after PARTY_COLOURS (line 434) to keep constants together near the top of the file. Rationale: This keeps the canonical source of truth visible and maintains logical grouping with other module-level constants.

Next Steps

  1. Run full test suite to verify no regressions: uv run pytest tests/ -v
  2. Commit the changes: git add explorer.py analysis/svd_labels.py && git commit -m "refactor: move SVD_THEMES to module level for import"
  3. Proceed to Task 3: Update axis_classifier.py to use svd_labels module

Critical Context

  • SVD_THEMES now defined at explorer.py line 434 with full type annotation dict[int, dict[str, str]]
  • SVD_THEMES contains 10 components (1-indexed) with keys: label, explanation, positive_pole, negative_pole, flip
  • Function _get_svd_themes() in analysis/svd_labels.py now uses simple import pattern with global cache _svd_themes_cache
  • The function references in explorer.py at lines 2691 and 2719 (SVD_THEMES.get()) continue to work unchanged since they now reference the module-level variable
  • All 4 tests in tests/test_svd_labels.py pass, including label retrieval and flip direction computation

File Operations

Read

  • /home/sgeboers/Projects/stemwijzer/docs/superpowers/plans/2026-04-02-svd-label-unification.md
  • /home/sgeboers/Projects/stemwijzer/explorer.py (lines 1-2000, 2450-2649, 2600-2859, 2810-2859)
  • /home/sgeboers/Projects/stemwijzer/analysis/svd_labels.py

Modified

  • /home/sgeboers/Projects/stemwijzer/explorer.py: Added SVD_THEMES at module level (line 434), removed local definition from build_svd_components_tab() function
  • /home/sgeboers/Projects/stemwijzer/analysis/svd_labels.py: Simplified _get_svd_themes() to use direct import from explorer instead of importlib.util fallback