Migrate to linopy 0.9

[edwardxtg]

What

Moves tz-osemosys from linopy==0.5.5 to linopy>=0.9,<0.10 (latest linopy). This is the cross-repo prerequisite for the tz-mod PyPSA v1 / linopy 0.9 upgrade.

Target updated from linopy 0.7 → 0.9: 0.7.x had a single release and is already superseded (0.8, 0.9); pypsa's development branch already requires linopy>=0.8.0, so 0.7 would be an immediate dead-end. Going to 0.9 adds only the add_variables coords change below.

Changes

• pyproject.toml: linopy==0.5.5 → linopy>=0.9,<0.10.
• .sum(dims=…) → .sum(dim=…) — 35 shipping-code sites + 1 in bin/memory_profile.py (linopy aligned the kwarg with xarray). The xr.DataArray(…, dims="YRTS") constructor in constraints/storage.py is intentionally unchanged.
• add_variables coords (linopy 0.8+) — linopy no longer accepts xarray DataArray coord entries; it requires a pd.Index. Changed ds.coords[...] → ds.indexes[...] in the coordinate lists in variables/{activity,capacity,storage}.py (6 lists, 3 files).
• Trade solve tests — linopy changed the solved NetTrade solution dim order to (REGION, TIMESLICE, FUEL, YEAR), so the old positional .values[0][2][0][0] walked off an axis (IndexError). test_simple_trade / test_simple_trade_forced_min_activity now use order-independent labelled access: .sel(REGION="R1", YEAR=2022).item().

Verification

Full suite on linopy 0.9.0: 90 passed, 2 skipped. (Also verified green on 0.7.0 earlier; the mask= breakage anticipated for 0.8+ did not materialise.)

Notes

• The Pydantic 2.11 model_fields deprecation is handled separately in Fix Pydantic 2.11 model_fields instance-access deprecation #190 (disjoint files).

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Updates tz-osemosys to support linopy 0.7 by bumping the dependency pin and applying the corresponding API change for summation across dimensions, plus making trade-solve tests robust to the new solution dimension ordering.

Changes:

• Bump dependency from linopy==0.5.5 to linopy>=0.7,<0.8.
• Replace .sum(dims=...) with .sum(dim=...) across model expressions/constraints and memory profiling script.
• Update trade solve assertions to use labelled xarray access (.sel(...).item()) instead of positional .values[...] indexing.

Reviewed changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pyproject.toml	Updates the linopy dependency constraint to >=0.7,<0.8.
tz/osemosys/model/objective.py	Switches objective expression aggregation to .sum(dim=...) for linopy 0.7 compatibility.
tz/osemosys/model/linear_expressions/activity.py	Updates .sum(...) kwarg usage in activity linear expressions.
tz/osemosys/model/linear_expressions/emissions.py	Updates emissions expression reductions to .sum(dim=...).
tz/osemosys/model/linear_expressions/financials.py	Updates financials expression reductions to .sum(dim=...).
tz/osemosys/model/linear_expressions/production.py	Updates production/use expression reductions to .sum(dim=...).
tz/osemosys/model/linear_expressions/re_production.py	Updates RE production expression reductions to .sum(dim=...).
tz/osemosys/model/linear_expressions/regiongroup.py	Updates region-group expression reductions to .sum(dim=...).
tz/osemosys/model/linear_expressions/reserve_margin.py	Updates reserve margin expression reductions to .sum(dim=...).
tz/osemosys/model/constraints/capacity_adequacy_b.py	Updates constraint expression reductions to .sum(dim=...).
tz/osemosys/model/constraints/re_targets.py	Updates production target constraint reductions to .sum(dim=...).
tz/osemosys/model/constraints/storage.py	Updates storage balance constraint reduction to .sum(dim=...).
tests/test_solve/test_solve.py	Makes NetTrade assertions order-independent via .sel(...).item().
bin/memory_profile.py	Updates memory profiling objective aggregation to .sum(dim=...).

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 14 changed files in this pull request and generated no new comments.

[Copilot]

Pull request overview

Copilot reviewed 16 out of 17 changed files in this pull request and generated no new comments.