diff --git a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp
index 90079ed1b..f362ee040 100644
Binary files a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp and b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp differ
diff --git a/icefall/.utils.py.swp b/icefall/.utils.py.swp
index 1fec89753..5ac65ead6 100644
Binary files a/icefall/.utils.py.swp and b/icefall/.utils.py.swp differ
diff --git a/icefall/utils.py b/icefall/utils.py
index b2ed0a07e..caaba6aea 100644
--- a/icefall/utils.py
+++ b/icefall/utils.py
@@ -191,6 +191,7 @@ def encode_supervisions(
     returned tensor and list of strings are guaranteed to be consistent with
     each other.
     """
+
     supervision_segments = torch.stack(
         (
             supervisions["sequence_idx"],