diff --git a/days/test_day01.py b/days/test_day01.py
index be7e628..bee5592 100644
--- a/days/test_day01.py
+++ b/days/test_day01.py
@@ -1,6 +1,5 @@
 import os
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day01_input")
 
 
diff --git a/days/test_day02.py b/days/test_day02.py
index 2864e78..3b8ae2b 100644
--- a/days/test_day02.py
+++ b/days/test_day02.py
@@ -2,7 +2,6 @@ import os
 
 from . import OpcodeComputer
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day02_input")
 
 
diff --git a/days/test_day03.py b/days/test_day03.py
index cea9f32..afce953 100644
--- a/days/test_day03.py
+++ b/days/test_day03.py
@@ -1,7 +1,6 @@
 import os
 import sys
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day03_input")
 
 
diff --git a/days/test_day05.py b/days/test_day05.py
index 5e7831b..8c9c9a5 100644
--- a/days/test_day05.py
+++ b/days/test_day05.py
@@ -2,7 +2,6 @@ import os
 
 from . import OpcodeComputer
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day05_input")
 
 
diff --git a/days/test_day07.py b/days/test_day07.py
index 2932252..7b71fb8 100644
--- a/days/test_day07.py
+++ b/days/test_day07.py
@@ -3,7 +3,6 @@ import os
 
 from . import OpcodeComputer
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day07_input")
 
 
diff --git a/days/test_day08.py b/days/test_day08.py
index 963fce8..fb2ba45 100644
--- a/days/test_day08.py
+++ b/days/test_day08.py
@@ -1,7 +1,6 @@
 import os
 import sys
 
-
 imgsize = 25 * 6
 
 
diff --git a/days/test_day09.py b/days/test_day09.py
index 29f63d7..fee7f0c 100644
--- a/days/test_day09.py
+++ b/days/test_day09.py
@@ -1,9 +1,7 @@
-import itertools
 import os
 
 from .comp import OpcodeComputer
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day09_input")
 
 
diff --git a/days/test_day10.py b/days/test_day10.py
index a1ec891..466fbfb 100644
--- a/days/test_day10.py
+++ b/days/test_day10.py
@@ -1,8 +1,7 @@
-from math import atan2, sqrt
 import os
+from math import atan2
 from typing import Tuple
 
-
 inputfile = os.path.join(os.path.dirname(__file__), "input/day10_input")