python · brettcannon · Sep 11, 2019 · Sep 2, 2019 · Sep 2, 2019 · Sep 3, 2019
diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py
@@ -713,21 +713,23 @@ class BuiltinImporter:

    """

+    _ORIGIN = "built-in"
+
    @staticmethod
    def module_repr(module):
        """Return repr for the module.

        The method is deprecated.  The import machinery does the job itself.

        """
-        return '<module {!r} (built-in)>'.format(module.__name__)
+        return f'<module {module.__name__!r} ({BuiltinImporter._ORIGIN})>'

    @classmethod
    def find_spec(cls, fullname, path=None, target=None):
        if path is not None:
            return None
        if _imp.is_builtin(fullname):
-            return spec_from_loader(fullname, cls, origin='built-in')
+            return spec_from_loader(fullname, cls, origin=cls._ORIGIN)
        else:
            return None


diff --git a/Misc/NEWS.d/next/Library/2019-09-03-01-41-35.bpo-35923.lYpKbY.rst b/Misc/NEWS.d/next/Library/2019-09-03-01-41-35.bpo-35923.lYpKbY.rst
@@ -0,0 +1,2 @@
+Update :class:`importlib.machinery.BuiltinImporter` to use ``loader._ORIGIN``
+instead of a hardcoded value. Patch by Dong-hee Na.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Update :class:`importlib.machinery.BuiltinImporter` to use ``loader._ORIGIN``
		instead of a hardcoded value. Patch by Dong-hee Na.