From a779f5f477e8529bf48edcf9798cd164b8c16e26 Mon Sep 17 00:00:00 2001
From: Muneeb Sheikh <muneikh@gmail.com>
Date: Sun, 11 Oct 2026 13:13:44 -0400
Subject: [PATCH] Preserve hash characters in Csv values

---
 decouple.py              |  1 +
 tests/test_helper_csv.py | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/decouple.py b/decouple.py
index 9873fc9..bf494c2 100644
--- a/decouple.py
+++ b/decouple.py
@@ -280,6 +280,7 @@ def __call__(self, value):
         transform = lambda s: self.cast(s.strip(self.strip))
 
         splitter = shlex(value, posix=True)
+        splitter.commenters = ''
         splitter.whitespace = self.delimiter
         splitter.whitespace_split = True
 
diff --git a/tests/test_helper_csv.py b/tests/test_helper_csv.py
index c5db287..b127d87 100644
--- a/tests/test_helper_csv.py
+++ b/tests/test_helper_csv.py
@@ -34,3 +34,16 @@ def test_csv_quoted_parse():
 def test_csv_none():
     csv = Csv()
     assert [] == csv(None)
+
+
+def test_csv_hash_characters_are_values():
+    csv = Csv()
+    assert ['https://example.com/#section', 'next'] == \
+        csv('https://example.com/#section,next')
+    assert ['#first', 'second#part', '#last'] == \
+        csv('#first,second#part,#last')
+
+
+def test_csv_hash_characters_with_custom_processing():
+    csv = Csv(delimiter=';', post_process=tuple)
+    assert ('#first', 'second#part') == csv('#first;second#part')