diff --git a/examples/example_tdc/example_tdc_snr.py b/examples/example_tdc/example_tdc_snr.py
index <HASH>..<HASH> 100644
--- a/examples/example_tdc/example_tdc_snr.py
+++ b/examples/example_tdc/example_tdc_snr.py
@@ -1,9 +1,10 @@
 # Example how to use pyBar to take TDC data and analyze the TDC SN in one small script.
 import numpy as np
 import tables as tb
+import matplotlib.pyplot as plt
+
 from pybar.run_manager import RunManager  # importing run manager
 from pybar.scans.scan_threshold_fast import FastThresholdScan
-import matplotlib.pyplot as plt
 from pybar.scans.calibrate_hit_or import HitOrCalibration
 
 
diff --git a/pybar/fei4/register_utils.py b/pybar/fei4/register_utils.py
index <HASH>..<HASH> 100644
--- a/pybar/fei4/register_utils.py
+++ b/pybar/fei4/register_utils.py
@@ -9,7 +9,6 @@ import itertools
 

 from bitarray import bitarray

 import numpy as np

-import tables as tb

 

 from basil.utils.BitLogic import BitLogic
MAINT: fix and clean imports