gh-127651: Use __file__ in diagnostics if origin is missing

Lib/test/test_import/__init__.py

@@ -807,6 +807,14 @@ def test_issue105979(self):
         self.assertIn("Frozen object named 'x' is invalid",
                       str(cm.exception))
 
+    def test_frozen_module_from_import_error(self):
+        with self.assertRaises(ImportError) as cm:
+            from os import this_will_never_exist
+        self.assertRegex(
+            str(cm.exception),
+            r"cannot import name 'this_will_never_exist' from 'os' \(.*Lib[\\/]os\.py\)"
+        )
+
     def test_script_shadowing_stdlib(self):
         script_errors = [
             (

Misc/NEWS.d/next/Core_and_Builtins/2024-12-06-01-09-40.gh-issue-127651.80cm6j.rst

@@ -0,0 +1 @@
+When raising ImportError for missing symbols in ``from`` imports, use ``__file__`` in the error message if `__spec__.origin` is not a location

Python/ceval.c

@@ -2903,6 +2903,19 @@ _PyEval_ImportFrom(PyThreadState *tstate, PyObject *v, PyObject *name)
         }
         else {
             assert(rc == 0);
+            if (origin == NULL) {
+                // Fall back to __file__ for diagnostics if we don't have
+                // an origin that is a location
+                origin = PyModule_GetFilenameObject(v);
+                if (origin == NULL) {
+                    if (!PyErr_ExceptionMatches(PyExc_SystemError)) {
+                        goto done;
+                    }
+                    // PyModule_GetFilenameObject raised "module filename missing"
+                    _PyErr_Clear(tstate);
+                }
+                assert(origin == NULL || PyUnicode_Check(origin));
+            }
             if (origin) {
                 errmsg = PyUnicode_FromFormat(
                     "cannot import name %R from %R (%S)",