diff --git a/tests/functional/qemu_test/ports.py b/tests/functional/qemu_test/ports.py
index cc39939..631b77a 100644
--- a/tests/functional/qemu_test/ports.py
+++ b/tests/functional/qemu_test/ports.py
@@ -10,12 +10,11 @@
 import fcntl
 import os
 import socket
-import sys
-import tempfile
 
 from .config import BUILD_DIR
 from typing import List
 
+
 class Ports():
 
     PORTS_ADDR = '127.0.0.1'
diff --git a/tests/functional/qemu_test/tuxruntest.py b/tests/functional/qemu_test/tuxruntest.py
index c2bd5ba..6c442ff 100644
--- a/tests/functional/qemu_test/tuxruntest.py
+++ b/tests/functional/qemu_test/tuxruntest.py
@@ -10,8 +10,6 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 import os
-import stat
-from subprocess import check_call, DEVNULL
 
 from qemu_test import QemuSystemTest
 from qemu_test import exec_command_and_wait_for_pattern
diff --git a/tests/functional/qemu_test/uncompress.py b/tests/functional/qemu_test/uncompress.py
index ce79da1..b7ef8f7 100644
--- a/tests/functional/qemu_test/uncompress.py
+++ b/tests/functional/qemu_test/uncompress.py
@@ -13,7 +13,7 @@
 import stat
 import shutil
 from urllib.parse import urlparse
-from subprocess import run, CalledProcessError, DEVNULL
+from subprocess import run, CalledProcessError
 
 from .asset import Asset
 
diff --git a/tests/functional/test_aarch64_rme_sbsaref.py b/tests/functional/test_aarch64_rme_sbsaref.py
index 0f4f610..746770e 100755
--- a/tests/functional/test_aarch64_rme_sbsaref.py
+++ b/tests/functional/test_aarch64_rme_sbsaref.py
@@ -9,15 +9,13 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import time
 import os
-import logging
 
-from qemu_test import QemuSystemTest, Asset
-from qemu_test import exec_command, wait_for_console_pattern
+from qemu_test import QemuSystemTest, Asset, wait_for_console_pattern
 from qemu_test import exec_command_and_wait_for_pattern
 from test_aarch64_rme_virt import test_realms_guest
 
+
 class Aarch64RMESbsaRefMachine(QemuSystemTest):
 
     # Stack is built with OP-TEE build environment from those instructions:
diff --git a/tests/functional/test_aarch64_rme_virt.py b/tests/functional/test_aarch64_rme_virt.py
index a1abf58..8452d27 100755
--- a/tests/functional/test_aarch64_rme_virt.py
+++ b/tests/functional/test_aarch64_rme_virt.py
@@ -9,9 +9,7 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import time
 import os
-import logging
 
 from qemu_test import QemuSystemTest, Asset
 from qemu_test import exec_command, wait_for_console_pattern
diff --git a/tests/functional/test_aarch64_sbsaref_alpine.py b/tests/functional/test_aarch64_sbsaref_alpine.py
index c660cc7..6108ec6 100755
--- a/tests/functional/test_aarch64_sbsaref_alpine.py
+++ b/tests/functional/test_aarch64_sbsaref_alpine.py
@@ -10,11 +10,8 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu_test import QemuSystemTest, Asset, skipSlowTest
 from qemu_test import wait_for_console_pattern
-from unittest import skipUnless
 from test_aarch64_sbsaref import fetch_firmware
 
 
diff --git a/tests/functional/test_aarch64_sbsaref_freebsd.py b/tests/functional/test_aarch64_sbsaref_freebsd.py
index bd6728d..26dfc58 100755
--- a/tests/functional/test_aarch64_sbsaref_freebsd.py
+++ b/tests/functional/test_aarch64_sbsaref_freebsd.py
@@ -10,8 +10,6 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu_test import QemuSystemTest, Asset, skipSlowTest
 from qemu_test import wait_for_console_pattern
 from test_aarch64_sbsaref import fetch_firmware
diff --git a/tests/functional/test_aarch64_tcg_plugins.py b/tests/functional/test_aarch64_tcg_plugins.py
index 4ea71f5..cb7e929 100755
--- a/tests/functional/test_aarch64_tcg_plugins.py
+++ b/tests/functional/test_aarch64_tcg_plugins.py
@@ -13,7 +13,6 @@
 
 import tempfile
 import mmap
-import os
 import re
 
 from qemu.machine.machine import VMLaunchFailure
diff --git a/tests/functional/test_aarch64_virt.py b/tests/functional/test_aarch64_virt.py
index 884aad7..4d0ad90 100755
--- a/tests/functional/test_aarch64_virt.py
+++ b/tests/functional/test_aarch64_virt.py
@@ -13,12 +13,8 @@
 import logging
 from subprocess import check_call, DEVNULL
 
-from qemu.machine.machine import VMLaunchFailure
-
-from qemu_test import QemuSystemTest, Asset
-from qemu_test import exec_command, exec_command_and_wait_for_pattern
-from qemu_test import wait_for_console_pattern
-from qemu_test import skipIfMissingCommands, get_qemu_img
+from qemu_test import QemuSystemTest, Asset, exec_command_and_wait_for_pattern
+from qemu_test import wait_for_console_pattern, get_qemu_img
 
 
 class Aarch64VirtMachine(QemuSystemTest):
diff --git a/tests/functional/test_arm_aspeed_ast2500.py b/tests/functional/test_arm_aspeed_ast2500.py
index ddc6459..a3b4457 100755
--- a/tests/functional/test_arm_aspeed_ast2500.py
+++ b/tests/functional/test_arm_aspeed_ast2500.py
@@ -4,9 +4,8 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-from qemu_test import Asset
+from qemu_test import Asset, exec_command_and_wait_for_pattern
 from aspeed import AspeedTest
-from qemu_test import exec_command_and_wait_for_pattern
 
 
 class AST2500Machine(AspeedTest):
diff --git a/tests/functional/test_arm_cubieboard.py b/tests/functional/test_arm_cubieboard.py
index 1eaca02..b536c2f 100755
--- a/tests/functional/test_arm_cubieboard.py
+++ b/tests/functional/test_arm_cubieboard.py
@@ -4,8 +4,6 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
 from qemu_test import interrupt_interactive_console_until_pattern
 from qemu_test import skipBigDataTest
diff --git a/tests/functional/test_arm_quanta_gsj.py b/tests/functional/test_arm_quanta_gsj.py
index da60aeb..cb0545f 100755
--- a/tests/functional/test_arm_quanta_gsj.py
+++ b/tests/functional/test_arm_quanta_gsj.py
@@ -4,8 +4,6 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
 from qemu_test import interrupt_interactive_console_until_pattern, skipSlowTest
 
diff --git a/tests/functional/test_arm_smdkc210.py b/tests/functional/test_arm_smdkc210.py
index 0fda45c..3154e7f 100755
--- a/tests/functional/test_arm_smdkc210.py
+++ b/tests/functional/test_arm_smdkc210.py
@@ -4,8 +4,6 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu_test import LinuxKernelTest, Asset
 
 
diff --git a/tests/functional/test_migration.py b/tests/functional/test_migration.py
index 181223a..c4393c3 100755
--- a/tests/functional/test_migration.py
+++ b/tests/functional/test_migration.py
@@ -11,14 +11,13 @@
 # This work is licensed under the terms of the GNU GPL, version 2 or
 # later.  See the COPYING file in the top-level directory.
 
-
 import tempfile
-import os
 import time
 
 from qemu_test import QemuSystemTest, skipIfMissingCommands
 from qemu_test.ports import Ports
 
+
 class MigrationTest(QemuSystemTest):
 
     timeout = 10
diff --git a/tests/functional/test_mips64el_replay.py b/tests/functional/test_mips64el_replay.py
index 4f63d7f..26a6ccf 100755
--- a/tests/functional/test_mips64el_replay.py
+++ b/tests/functional/test_mips64el_replay.py
@@ -4,11 +4,7 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-import logging
-
-from qemu_test import Asset, exec_command_and_wait_for_pattern
-from qemu_test import skipIfMissingImports, skipFlakyTest, skipUntrustedTest
+from qemu_test import Asset, skipUntrustedTest
 from replay_kernel import ReplayKernelBase
 
 
diff --git a/tests/functional/test_mips_replay.py b/tests/functional/test_mips_replay.py
index eda031c..4327481 100755
--- a/tests/functional/test_mips_replay.py
+++ b/tests/functional/test_mips_replay.py
@@ -4,7 +4,7 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-from qemu_test import Asset, skipSlowTest, exec_command_and_wait_for_pattern
+from qemu_test import Asset, skipSlowTest
 from replay_kernel import ReplayKernelBase
 
 
diff --git a/tests/functional/test_mipsel_replay.py b/tests/functional/test_mipsel_replay.py
index 0a330de..5f4796c 100644
--- a/tests/functional/test_mipsel_replay.py
+++ b/tests/functional/test_mipsel_replay.py
@@ -4,7 +4,7 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-from qemu_test import Asset, wait_for_console_pattern, skipSlowTest
+from qemu_test import Asset, skipSlowTest
 from replay_kernel import ReplayKernelBase
 
 
diff --git a/tests/functional/test_ppc64_hv.py b/tests/functional/test_ppc64_hv.py
index 1920e91..d87f440 100755
--- a/tests/functional/test_ppc64_hv.py
+++ b/tests/functional/test_ppc64_hv.py
@@ -9,14 +9,14 @@
 # This work is licensed under the terms of the GNU GPL, version 2 or
 # later.  See the COPYING file in the top-level directory.
 
+import os
+import subprocess
+
+from datetime import datetime
 from qemu_test import QemuSystemTest, Asset
 from qemu_test import wait_for_console_pattern, exec_command
 from qemu_test import skipIfMissingCommands, skipBigDataTest
 from qemu_test import exec_command_and_wait_for_pattern
-import os
-import time
-import subprocess
-from datetime import datetime
 
 # Alpine is a light weight distro that supports QEMU. These tests boot
 # that on the machine then run a QEMU guest inside it in KVM mode,
diff --git a/tests/functional/test_vnc.py b/tests/functional/test_vnc.py
index d4e9dd0..5c0ee5f 100755
--- a/tests/functional/test_vnc.py
+++ b/tests/functional/test_vnc.py
@@ -11,12 +11,12 @@
 # later.  See the COPYING file in the top-level directory.
 
 import socket
-from typing import List
-from qemu.machine.machine import VMLaunchFailure
 
+from qemu.machine.machine import VMLaunchFailure
 from qemu_test import QemuSystemTest
 from qemu_test.ports import Ports
 
+
 VNC_ADDR = '127.0.0.1'
 
 def check_connect(port: int) -> bool:
diff --git a/tests/functional/test_x86_64_kvm_xen.py b/tests/functional/test_x86_64_kvm_xen.py
index c6abf6b..a5d4450 100755
--- a/tests/functional/test_x86_64_kvm_xen.py
+++ b/tests/functional/test_x86_64_kvm_xen.py
@@ -11,8 +11,6 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-import os
-
 from qemu.machine import machine
 
 from qemu_test import QemuSystemTest, Asset, exec_command_and_wait_for_pattern