allow None

conda · Dec 20, 2023 · ae51ac0 · ae51ac0
1 parent 5657c99
commit ae51ac0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/constructor/construct.py b/constructor/construct.py
@@ -776,7 +776,7 @@ def verify(info):
             if key not in _EXTRA_ENVS_SCHEMA:
                 sys.exit(f"Key '{key}' not supported in 'extra_envs'.")
             types = _EXTRA_ENVS_SCHEMA[key]
-            if not isinstance(value, types):
+            if value is not None and not isinstance(value, types):
                 types_str = " or ".join([type_.__name__ for type_ in types])
                 sys.exit(f"Value for 'extra_envs.{env_name}.{key}' "
                          f"must be an instance of {types_str}")