From 4fefac11c6fda6e0bc3cb9b8e84bf862e31ce5e4 Mon Sep 17 00:00:00 2001
From: Yutao Yuan <infmagic2047reg@outlook.com>
Date: Mon, 7 Aug 2023 23:53:14 +0800
Subject: [PATCH] avoid StopIteration in generators

---
 src/sage/numerical/linear_functions.pyx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/sage/numerical/linear_functions.pyx b/src/sage/numerical/linear_functions.pyx
index 5549ff436f5..f3fc6fe419c 100644
--- a/src/sage/numerical/linear_functions.pyx
+++ b/src/sage/numerical/linear_functions.pyx
@@ -1579,7 +1579,10 @@ cdef class LinearConstraint(LinearFunctionOrConstraint):
         while True:
             yield (lhs, rhs)
             lhs = rhs
-            rhs = next(term_iter)
+            try:
+                rhs = next(term_iter)
+            except StopIteration:
+                return
 
     def inequalities(self):
         """
@@ -1612,7 +1615,10 @@ cdef class LinearConstraint(LinearFunctionOrConstraint):
         while True:
             yield (lhs, rhs)
             lhs = rhs
-            rhs = next(term_iter)
+            try:
+                rhs = next(term_iter)
+            except StopIteration:
+                return
 
     def _repr_(self):
         r"""