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fix(core): catch missing reduced costs and shadow prices. #1383

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merged 2 commits into from
Apr 8, 2024
Merged

fix(core): catch missing reduced costs and shadow prices. #1383

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9a42a83
fix(core): catch missing reduced costs and shadow prices. Fixes #1381…
Palaract Mar 19, 2024
6735364
Added fix to next release
Palaract Apr 5, 2024
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10 changes: 9 additions & 1 deletion src/cobra/core/solution.py
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Original file line number Diff line number Diff line change
Expand Up @@ -174,7 +174,15 @@ def get_solution(
reduced = np.empty(len(reactions))
var_primals = model.solver.primal_values
shadow = np.empty(len(metabolites))
if model.solver.is_integer:

try:
var_duals = model.solver.reduced_costs
constr_duals = model.solver.shadow_prices
duals_available = True
except Exception:
duals_available = False

if model.solver.is_integer or not duals_available:
reduced.fill(np.nan)
shadow.fill(np.nan)
for i, rxn in enumerate(reactions):
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