diff --git a/spec/python/test_debug_0.py b/spec/python/test_debug_0.py
index 6e2a96fd..6a9da110 100644
--- a/spec/python/test_debug_0.py
+++ b/spec/python/test_debug_0.py
@@ -1,5 +1,4 @@
 import unittest
-
 from debug_0 import Debug0
 
 class TestDebug0(unittest.TestCase):
diff --git a/spec/python/test_debug_array_user.py b/spec/python/test_debug_array_user.py
index 48a4fa7b..b49edeab 100644
--- a/spec/python/test_debug_array_user.py
+++ b/spec/python/test_debug_array_user.py
@@ -1,5 +1,4 @@
 import unittest
-
 from debug_array_user import DebugArrayUser
 
 class TestDebugArrayUser(unittest.TestCase):
diff --git a/spec/python/test_debug_enum_name.py b/spec/python/test_debug_enum_name.py
index 2421f295..7e8430bc 100644
--- a/spec/python/test_debug_enum_name.py
+++ b/spec/python/test_debug_enum_name.py
@@ -1,5 +1,4 @@
 import unittest
-
 from debug_enum_name import DebugEnumName
 
 class TestDebugEnumName(unittest.TestCase):
diff --git a/spec/python/test_opaque_external_type.py b/spec/python/test_opaque_external_type.py
index 42c46039..723839b1 100644
--- a/spec/python/test_opaque_external_type.py
+++ b/spec/python/test_opaque_external_type.py
@@ -1,5 +1,4 @@
 import unittest
-
 from opaque_external_type import OpaqueExternalType
 
 class TestOpaqueExternalType(unittest.TestCase):
diff --git a/spec/python/test_opaque_external_type_02_parent.py b/spec/python/test_opaque_external_type_02_parent.py
index 339ce9c9..bc79012e 100644
--- a/spec/python/test_opaque_external_type_02_parent.py
+++ b/spec/python/test_opaque_external_type_02_parent.py
@@ -1,11 +1,9 @@
 import unittest
-
 from opaque_external_type_02_parent import OpaqueExternalType02Parent
 
 class TestOpaqueExternalType02Parent(unittest.TestCase):
     def test_opaque_external_type_02_parent(self):
         with OpaqueExternalType02Parent.from_file('src/term_strz.bin') as r:
-
             self.assertEqual(r.parent.child.s1, u"foo")
             self.assertEqual(r.parent.child.s2, u"bar")
             self.assertEqual(r.parent.child.s3.s3, u"|baz@")
diff --git a/spec/python/test_opaque_with_param.py b/spec/python/test_opaque_with_param.py
index 1520a331..12c805d4 100644
--- a/spec/python/test_opaque_with_param.py
+++ b/spec/python/test_opaque_with_param.py
@@ -1,5 +1,4 @@
 import unittest
-
 from opaque_with_param import OpaqueWithParam
 
 class TestOpaqueWithParam(unittest.TestCase):
diff --git a/spec/python/test_params_def.py b/spec/python/test_params_def.py
index 471546ef..eefa037f 100644
--- a/spec/python/test_params_def.py
+++ b/spec/python/test_params_def.py
@@ -1,5 +1,4 @@
 import unittest
-
 from params_def import ParamsDef
 from kaitaistruct import KaitaiStream
 
diff --git a/spec/python/test_str_literals.py b/spec/python/test_str_literals.py
index f3cd1f45..7c3ea99b 100644
--- a/spec/python/test_str_literals.py
+++ b/spec/python/test_str_literals.py
@@ -1,11 +1,9 @@
 import unittest
-
 from str_literals import StrLiterals
 
 class TestStrLiterals(unittest.TestCase):
     def test_str_literals(self):
         with StrLiterals.from_file('src/fixed_struct.bin') as r:
-
             self.assertEqual(self.str_to_arr(r.complex_str), [0, 1, 2, 7, 8, 10, 13, 9, 11, 12, 27, 61, 7, 10, 36, 9787])
             self.assertEqual(self.str_to_arr(r.double_quotes), [34, 34, 34])
             self.assertEqual(self.str_to_arr(r.backslashes), [92, 92, 92])
diff --git a/spec/python/test_switch_cast.py b/spec/python/test_switch_cast.py
index 8f9b3f3c..bdf5a0f1 100644
--- a/spec/python/test_switch_cast.py
+++ b/spec/python/test_switch_cast.py
@@ -1,5 +1,4 @@
 import unittest
-
 from switch_cast import SwitchCast
 
 class TestSwitchCast(unittest.TestCase):
diff --git a/spec/python/test_to_string_custom.py b/spec/python/test_to_string_custom.py
index 9c17c6ae..63a43d00 100644
--- a/spec/python/test_to_string_custom.py
+++ b/spec/python/test_to_string_custom.py
@@ -1,5 +1,4 @@
 import unittest
-
 from to_string_custom import ToStringCustom
 
 class TestToStringCustom(unittest.TestCase):
diff --git a/spec/python/test_type_ternary_opaque.py b/spec/python/test_type_ternary_opaque.py
index 0e71732e..403e332a 100644
--- a/spec/python/test_type_ternary_opaque.py
+++ b/spec/python/test_type_ternary_opaque.py
@@ -1,5 +1,4 @@
 import unittest
-
 from type_ternary_opaque import TypeTernaryOpaque
 
 class TestTypeTernaryOpaque(unittest.TestCase):