From b212be84a3f00d53269e7e3b5c0ced8002486000 Mon Sep 17 00:00:00 2001
From: Maxim Harder <info@maxim-harder.de>
Date: Fri, 15 Nov 2024 13:22:37 +0100
Subject: [PATCH] Fixed empty values

If you use empty values in your env files, e.g. `DB_PORT=` and cast it in call into int or float, so you will get an error:
```
ValueError: invalid literal for int() with base 10: ''
```

I just fixed that for me with this universal solution. It works not only on int or float
---
 decouple.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/decouple.py b/decouple.py
index 9873fc9..86295fd 100644
--- a/decouple.py
+++ b/decouple.py
@@ -98,6 +98,12 @@ def get(self, option, default=undefined, cast=undefined):
         elif cast is bool:
             cast = self._cast_boolean
 
+        if value is None or value == '':
+            if not isinstance(default, Undefined):
+                value = default
+            else:
+                cast = self._cast_do_nothing
+
         return cast(value)
 
     def __call__(self, *args, **kwargs):