Instanciate Transition.conditions with an empty Iterable instead of None (#117)

Author: pfouque

CHANGELOG.rst

@@ -5,6 +5,11 @@ Unreleased
 ~~~~~~~~~~
 
 
+django-fsm-2 4.2.2 2026-03-14
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Instantiate ``Transition.conditions`` with an empty ``Iterable`` instead of ``None``
+
 django-fsm-2 4.2.1 2026-03-09
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

django_fsm/__init__.py

@@ -107,7 +107,7 @@ def __init__(
         self.source = source
         self.target = target
         self.on_error = on_error
-        self.conditions = conditions
+        self.conditions = conditions or []
         self.permission = permission
         self.custom = custom or {}
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "django-fsm-2"
-version = "4.2.1"
+version = "4.2.2"
 description = "Django friendly finite state machine support."
 authors = [{ name = "Mikhail Podgurskiy", email = "kmmbvnr@gmail.com" }]
 requires-python = ">=3.10"