API Reference

Pathways

Key methods

• pathways.Pathways.calculate() — Compute LCA results for selected methods, models, scenarios, regions, years, and variables. Parameters include demand_cutoff, use_distributions, subshares, remove_uncertainty, seed, solver, the iterative_* tuning arguments, aggregate_by, multiprocessing, postprocess_multiprocessing, and double_accounting. solver="direct" uses bw2calc.MultiLCA and solver="jacobi-gmres" selects the experimental iterative backend.

• pathways.Pathways.aggregate_results() — Aggregate low-contribution activity categories under "other"; optional interpolation.

• pathways.Pathways.export_results() — Export non-zero results to compressed Parquet (.gzip).