Ensure that scipy/numpy output is JSON-serializable

2024-05-25 09:48:29 +12:00 · 2024-05-25 09:48:29 +12:00 · a531041f3e
commit a531041f3e
parent 524275ae14
1 changed files with 3 additions and 0 deletions
--- a/Lib/fontTools/varLib/interpolatableHelpers.py
+++ b/Lib/fontTools/varLib/interpolatableHelpers.py
@ -143,6 +143,9 @@ def min_cost_perfect_bipartite_matching_scipy(G):
    n = len(G)
    rows, cols = linear_sum_assignment(G)
    assert (rows == list(range(n))).all()
+    # Convert numpy array and integer to Python types,
+    # to ensure that this is JSON-serializable.
+    cols = list(int(e) for e in cols)
    return list(cols), matching_cost(G, cols)