Fix LpVariable.isBinary() with LpBinary (#775)

LpVariable.isBinary() was returning False if the category was LpBinary, this fixes that issue.
coin-or · Oct 22, 2024 · 76b8d2e · 76b8d2e
1 parent 6af3801
commit 76b8d2e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/pulp/pulp.py b/pulp/pulp.py
@@ -555,6 +555,8 @@ def infeasibilityGap(self, mip=1):
         return 0
 
     def isBinary(self):
+        if self.cat == const.LpBinary:
+            return True
         return self.cat == const.LpInteger and self.lowBound == 0 and self.upBound == 1
 
     def isInteger(self):