diff --git a/egs/librispeech/ASR/pruned_transducer_stateless9/beam_search.py b/egs/librispeech/ASR/pruned_transducer_stateless9/beam_search.py
index 2bc4c1788..5b1352b63 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless9/beam_search.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless9/beam_search.py
@@ -609,7 +609,7 @@ def greedy_search(
         else:
             sym_per_frame = 0
             t += 1
-    hyp = hyp[context_size :]  # remove blanks
+    hyp = hyp[context_size:]  # remove blanks
 
     if not return_timestamps:
         return hyp
diff --git a/egs/librispeech/ASR/pruned_transducer_stateless9/decoder.py b/egs/librispeech/ASR/pruned_transducer_stateless9/decoder.py
index aead79de5..89b21b0f9 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless9/decoder.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless9/decoder.py
@@ -126,7 +126,7 @@ class Decoder(nn.Module):
         embedding_out = self.embedding(y.clamp(min=0)) * (y >= 0).unsqueeze(-1)
         if self.context_size > 1:
             embedding_out = embedding_out.permute(0, 2, 1)
-            if need_pad is True: 
+            if need_pad is True:
                 embedding_out = F.pad(embedding_out, pad=(self.context_size - 1, 0))
             else:
                 # During inference time, there is no need to do extra padding
diff --git a/egs/librispeech/ASR/streaming_conformer_ctc/train.py b/egs/librispeech/ASR/streaming_conformer_ctc/train.py
index d265de45b..74565dac3 100755
--- a/egs/librispeech/ASR/streaming_conformer_ctc/train.py
+++ b/egs/librispeech/ASR/streaming_conformer_ctc/train.py
@@ -52,6 +52,7 @@ from icefall.utils import (
 )
 from lhotse.cut import Cut
 
+
 def get_parser():
     parser = argparse.ArgumentParser(
         formatter_class=argparse.ArgumentDefaultsHelpFormatter