esrftaskgraph: proper qualname for builtins

esrftaskgraph/esrftaskgraph/utils.py

 import importlib
 
 
-def qualname(_type):
-    mod_name = _type.__module__
-    if not mod_name or mod_name == str.__module__:
-        return _type.__name__  # Avoid reporting builtins
-    else:
-        return mod_name + "." + _type.__name__
+def qualname(obj):
+    return obj.__module__ + "." + obj.__name__
 
 
 def import_qualname(qualname):
     if not isinstance(qualname, str):
         raise TypeError(qualname, type(qualname))
-    module_name, dot, name = qualname.rpartition(".")
+    module_name, dot, obj_name = qualname.rpartition(".")
     if not module_name:
         raise ImportError(f"cannot import {qualname}")
     module = importlib.import_module(module_name)
     try:
-        return getattr(module, name)
+        return getattr(module, obj_name)
     except AttributeError:
-        raise ImportError(f"cannot import {name} from {module_name}")
+        raise ImportError(f"cannot import {obj_name} from {module_name}")
 
 
 def import_method(qualname):