From f87cd2569a1c1be3eb145de8bb000e0c8809ee3f Mon Sep 17 00:00:00 2001
From: William Pettersson <william@ewpettersson.se>
Date: Sat, 21 Sep 2024 17:02:59 +0100
Subject: [PATCH] Fix LpVariable.isBinary() with LpBinary

LpVariable.isBinary() was returning False if the category was LpBinary,
this fixes that issue.
---
 pulp/pulp.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pulp/pulp.py b/pulp/pulp.py
index a05a964f..e1cade69 100644
--- 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):