From bc1c03407649a37a8a3c26b8d0cb355ab2fc128e Mon Sep 17 00:00:00 2001
From: Hasan Ramezani <hasan.r67@gmail.com>
Date: Sun, 23 Feb 2020 14:37:02 +0100
Subject: Fixed #28280 -- Prevented numberformat.format() from formatting
 large/tiny floats in scientific notation.

---
 django/utils/numberformat.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'django/utils')

diff --git a/django/utils/numberformat.py b/django/utils/numberformat.py
index 961a60e37d..3bfdb2ea52 100644
--- a/django/utils/numberformat.py
+++ b/django/utils/numberformat.py
@@ -26,6 +26,9 @@ def format(number, decimal_sep, decimal_pos=None, grouping=0, thousand_sep='',
         return mark_safe(number)
     # sign
     sign = ''
+    # Treat potentially very large/small floats as Decimals.
+    if isinstance(number, float) and 'e' in str(number).lower():
+        number = Decimal(str(number))
     if isinstance(number, Decimal):
 
         if decimal_pos is not None:
-- 
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