fixes partial callable

Signed-off-by: Wenqi Li <[email protected]>

monai/utils/module.py

@@ -19,7 +19,7 @@
 from collections.abc import Callable, Collection, Hashable, Mapping
 from functools import partial, wraps
 from importlib import import_module
-from inspect import isclass, isfunction, ismethod
+from inspect import isclass
 from pkgutil import walk_packages
 from pydoc import locate
 from re import match
@@ -241,8 +241,7 @@ def instantiate(path: str, **kwargs):
             pdb.set_trace()
         if isclass(component):
             return component(**kwargs)
-        # support regular function, static method and class method
-        if isfunction(component) or (ismethod(component) and isclass(getattr(component, "__self__", None))):
+        if callable(component):  # support regular function, static method and class method
             return partial(component, **kwargs)
     except Exception as e:
         raise RuntimeError(f"Failed to instantiate '{path}' with kwargs: {kwargs}") from e

tests/test_config_parser.py

@@ -274,6 +274,10 @@ def test_get_via_attributes(self):
         result = trans(np.ones(64))
         self.assertTupleEqual(result.shape, (1, 8, 8))
 
+    def test_builtin(self):
+        config = {"import statements": "$import math", "calc": {"_target_": "math.isclose", "a": 0.001, "b": 0.001}}
+        self.assertEqual(ConfigParser(config).calc(), True)
+
 
 if __name__ == "__main__":
     unittest.main()