add default_save_path property to Callback

Author: hadim

pytorch_lightning/callbacks/base.py

@@ -22,6 +22,12 @@ def trainer(self):
         assert self._trainer is not None, _NO_TRAINER_ERROR_MSG
         return self._trainer
 
+    @property
+    def default_save_path(self):
+        """Trainer default save path.
+        """
+        return self.trainer.default_save_path
+
     def set_trainer(self, trainer):
         """Make a link to the trainer, so different things like `trainer.current_epoch`,
         `trainer.batch_idx`, `trainer.global_step` can be used."""