diff --git a/deeptools/alignmentSieve.py b/deeptools/alignmentSieve.py
index feb40d1073..73a2473493 100644
--- a/deeptools/alignmentSieve.py
+++ b/deeptools/alignmentSieve.py
@@ -10,6 +10,7 @@
 from deeptools.utilities import getTLen, smartLabels, getTempFileName
 from importlib.metadata import version
 
+
 def parseArguments():
     parser = argparse.ArgumentParser(
         formatter_class=argparse.RawDescriptionHelpFormatter,
diff --git a/deeptools/bamPEFragmentSize.py b/deeptools/bamPEFragmentSize.py
index 118b83c9c8..9138051717 100755
--- a/deeptools/bamPEFragmentSize.py
+++ b/deeptools/bamPEFragmentSize.py
@@ -20,6 +20,7 @@
 from deeptools.getFragmentAndReadSize import get_read_and_fragment_length
 from importlib.metadata import version
 
+
 def parse_arguments():
     parser = argparse.ArgumentParser(
         description='This tool calculates the fragment sizes for read pairs given a BAM file from paired-end sequencing.'
diff --git a/deeptools/computeMatrix.py b/deeptools/computeMatrix.py
index 8287d1dd71..2202c1d1a0 100644
--- a/deeptools/computeMatrix.py
+++ b/deeptools/computeMatrix.py
@@ -13,6 +13,7 @@
 import deeptools.deepBlue as db
 from importlib.metadata import version
 
+
 def parse_arguments(args=None):
     parser = \
         argparse.ArgumentParser(
diff --git a/deeptools/computeMatrixOperations.py b/deeptools/computeMatrixOperations.py
index 978d7eb256..6b3272d4bd 100755
--- a/deeptools/computeMatrixOperations.py
+++ b/deeptools/computeMatrixOperations.py
@@ -8,6 +8,7 @@
 import csv
 from importlib.metadata import version
 
+
 def parse_arguments():
     parser = argparse.ArgumentParser(
         formatter_class=argparse.RawDescriptionHelpFormatter,
diff --git a/deeptools/deeptools_list_tools.py b/deeptools/deeptools_list_tools.py
index 53983093dc..32dcf7021f 100644
--- a/deeptools/deeptools_list_tools.py
+++ b/deeptools/deeptools_list_tools.py
@@ -5,6 +5,7 @@
 import sys
 from importlib.metadata import version
 
+
 def parse_arguments(args=None):
     parser = argparse.ArgumentParser(
         formatter_class=argparse.RawDescriptionHelpFormatter,
diff --git a/deeptools/estimateReadFiltering.py b/deeptools/estimateReadFiltering.py
index 13d52599d7..8c46a38419 100644
--- a/deeptools/estimateReadFiltering.py
+++ b/deeptools/estimateReadFiltering.py
@@ -7,6 +7,7 @@
 from deeptools.utilities import smartLabels
 from importlib.metadata import version
 
+
 def parseArguments():
     parser = argparse.ArgumentParser(
         formatter_class=argparse.RawDescriptionHelpFormatter,
diff --git a/deeptools/parserCommon.py b/deeptools/parserCommon.py
index 7a94b0f577..8e726ea000 100755
--- a/deeptools/parserCommon.py
+++ b/deeptools/parserCommon.py
@@ -2,6 +2,7 @@
 import os
 from importlib.metadata import version
 
+
 def check_float_0_1(value):
     v = float(value)
     if v < 0.0 or v > 1.0: