better condition

CPMpy · Nov 14, 2023 · d91e987 · d91e987
1 parent 75de08c
commit d91e987
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cpmpy/solvers/minizinc.py b/cpmpy/solvers/minizinc.py
@@ -570,7 +570,7 @@ def zero_based(array):
         elif expr.name == "cumulative":
             start, dur, end, _, _ = expr.args
             self += [s + d == e for s,d,e in zip(start,dur,end)]
-            if not isinstance(args_str[0], list):
+            if len(start) == 1:
                 assert len(start) == 1
                 format_str = "cumulative([{}],[{}],[{}],{})"
             else: