From 7ba2a0db20c37a5b1500434ca4ed48022311c171 Mon Sep 17 00:00:00 2001
From: Tim Graham <timograham@gmail.com>
Date: Fri, 21 Jun 2024 15:51:41 -0400
Subject: [PATCH] Fixed Number.__str__() crash when float/decimal_value is None
 in expressions tests models.

---
 tests/expressions/models.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/expressions/models.py b/tests/expressions/models.py
index 43dd235fb5ac..31891a13d7c1 100644
--- a/tests/expressions/models.py
+++ b/tests/expressions/models.py
@@ -56,7 +56,11 @@ class Number(models.Model):
     decimal_value = models.DecimalField(max_digits=20, decimal_places=17, null=True)
 
     def __str__(self):
-        return "%i, %.3f, %.17f" % (self.integer, self.float, self.decimal_value)
+        return "%i, %s, %s" % (
+            self.integer,
+            "%.3f" % self.float if self.float is not None else None,
+            "%.17f" % self.decimal_value if self.decimal_value is not None else None,
+        )
 
 
 class Experiment(models.Model):