diff --git a/client/check.py b/client/check.py
index 33be335..f5760a1 100644
--- a/client/check.py
+++ b/client/check.py
@@ -1,10 +1,12 @@
 import argparse
-import json
 import datetime
+import json
 import os
+
 import h5py
 import numpy as np
 
+
 def run():
 
     parser = argparse.ArgumentParser(description='check consistency of produced files')
diff --git a/client/client_example.py b/client/client_example.py
index fba9a4b..59361a1 100644
--- a/client/client_example.py
+++ b/client/client_example.py
@@ -1,8 +1,8 @@
-import time
-import sys
-import signal
 import datetime
 import os
+import signal
+import sys
+import time
 
 import daq_client
 
diff --git a/client/daq_client.py b/client/daq_client.py
index 7ea4d5d..af347e5 100644
--- a/client/daq_client.py
+++ b/client/daq_client.py
@@ -1,7 +1,8 @@
-import requests
 import argparse
 import json
 
+import requests
+
 broker_address = "http://sf-daq:10002"
 TIMEOUT_DAQ = 10
 
diff --git a/client/jungfrau_convert_gainmaps.py b/client/jungfrau_convert_gainmaps.py
index 80621bb..7401b47 100644
--- a/client/jungfrau_convert_gainmaps.py
+++ b/client/jungfrau_convert_gainmaps.py
@@ -1,9 +1,10 @@
-import h5py
-import numpy as np
 import argparse
 import os
 from datetime import datetime
 
+import h5py
+import numpy as np
+
 # a = np.fromfile("gainMaps_M022.bin", np.double)
 
 GAINS = ["G0", "G1", "G2", "HG0", "HG1", "HG2"]