Appease mypy

brentyi · Oct 11, 2024 · f9e34dc · f9e34dc
1 parent 6f8d235
commit f9e34dc
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/tyro/_fields.py b/src/tyro/_fields.py
@@ -44,14 +44,14 @@
     is_typeddict,
 )
 
+from . import conf  # Avoid circular import.
 from . import (
     _docstrings,
     _instantiators,
     _resolver,
     _singleton,
     _strings,
     _unsafe_cache,
-    conf,  # Avoid circular import.
 )
 from ._typing import TypeForm
 from .conf import _confstruct, _markers
@@ -960,9 +960,10 @@ def _try_field_list_from_general_callable(
         params = params[1:]
 
     # If a default is provided: either all or none of the arguments must be passed in.
-    markers = ()
     if default_instance not in MISSING_SINGLETONS:
         markers = (_markers._OPTIONAL_GROUP,)
+    else:
+        markers = ()
 
     with FieldDefinition.marker_context(markers):
         return _field_list_from_params(f, cls, params)