- The pwd module incorrectly advertised its struct type as

struct_pwent; this has been renamed to struct_passwd.  (The old name
  is still supported for backwards compatibility.)

Modules/pwdmodule.c

@@ -184,5 +184,7 @@ initpwd(void)
 
 	PyStructSequence_InitType(&StructPwdType, &struct_pwd_type_desc);
 	Py_INCREF((PyObject *) &StructPwdType);
+	PyModule_AddObject(m, "struct_passwd", (PyObject *) &StructPwdType);
+	/* And for b/w compatibility (this was defined by mistake): */
 	PyModule_AddObject(m, "struct_pwent", (PyObject *) &StructPwdType);
 }