From 9a3ffd91030a825f2f9bbeb0d58b8e59b1a60994 Mon Sep 17 00:00:00 2001
From: TVLIgnacy <51340748+TVLIgnacy@users.noreply.github.com>
Date: Wed, 27 Jan 2021 13:27:09 +0000
Subject: [PATCH] Fix Float field handling of None values

Resolves issue #240 by making sure a None value is not attempted to be converted to a float
---
 flask_restx/fields.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/flask_restx/fields.py b/flask_restx/fields.py
index 031fdd61..ef357df6 100644
--- a/flask_restx/fields.py
+++ b/flask_restx/fields.py
@@ -481,6 +481,8 @@ class Float(NumberMixin, Raw):
 
     def format(self, value):
         try:
+            if value is None:
+                return self.default
             return float(value)
         except (ValueError, TypeError) as ve:
             raise MarshallingError(ve)