diff --git a/tools/ci/check_copyright_ignore.txt b/tools/ci/check_copyright_ignore.txt
index 0d8b1b5517..7debc0cf5e 100644
--- a/tools/ci/check_copyright_ignore.txt
+++ b/tools/ci/check_copyright_ignore.txt
@@ -2347,10 +2347,6 @@ tools/ci/python_packages/ttfw_idf/IDFAssignTest.py
 tools/ci/python_packages/ttfw_idf/unity_test_parser.py
 tools/ci/python_packages/wifi_tools.py
 tools/ci/test_autocomplete.py
-tools/esp_app_trace/espytrace/apptrace.py
-tools/esp_app_trace/espytrace/sysview.py
-tools/esp_app_trace/logtrace_proc.py
-tools/esp_app_trace/sysviewtrace_proc.py
 tools/esp_app_trace/test/sysview/blink.c
 tools/esp_prov/__init__.py
 tools/esp_prov/prov/__init__.py
@@ -2372,26 +2368,6 @@ tools/find_apps.py
 tools/find_build_apps/__init__.py
 tools/find_build_apps/cmake.py
 tools/find_build_apps/common.py
-tools/gdb_panic_server.py
-tools/idf_monitor_base/chip_specific_config.py
-tools/idf_monitor_base/console_reader.py
-tools/idf_monitor_base/coredump.py
-tools/idf_monitor_base/exceptions.py
-tools/idf_monitor_base/gdbhelper.py
-tools/idf_monitor_base/line_matcher.py
-tools/idf_monitor_base/logger.py
-tools/idf_monitor_base/output_helpers.py
-tools/idf_monitor_base/stoppable_thread.py
-tools/idf_monitor_base/web_socket_client.py
-tools/idf_py_actions/constants.py
-tools/idf_py_actions/core_ext.py
-tools/idf_py_actions/create_ext.py
-tools/idf_py_actions/debug_ext.py
-tools/idf_py_actions/dfu_ext.py
-tools/idf_py_actions/errors.py
-tools/idf_py_actions/global_options.py
-tools/idf_py_actions/tools.py
-tools/idf_py_actions/uf2_ext.py
 tools/kconfig_new/confserver.py
 tools/kconfig_new/gen_kconfig_doc.py
 tools/kconfig_new/test/confgen/test_confgen.py
@@ -2405,8 +2381,6 @@ tools/ldgen/samples/template.ld
 tools/ldgen/sdkconfig.py
 tools/ldgen/test/data/linker_script.ld
 tools/mass_mfg/mfg_gen.py
-tools/mkdfu.py
-tools/mkuf2.py
 tools/mocks/esp_system/include/esp_task.h
 tools/templates/sample_component/include/main.h
 tools/templates/sample_component/main.c
@@ -2457,14 +2431,6 @@ tools/test_apps/system/panic/test_panic_util/test_panic_util.py
 tools/test_apps/system/startup/app_test.py
 tools/test_apps/system/startup/main/test_startup_main.c
 tools/test_idf_monitor/dummy.c
-tools/test_idf_py/extra_path/some_ext.py
-tools/test_idf_py/idf_ext.py
-tools/test_idf_py/test_idf_extensions/test_ext/__init__.py
-tools/test_idf_py/test_idf_extensions/test_ext/test_extension.py
-tools/test_idf_py/test_idf_py.py
-tools/test_idf_size/test_idf_size.py
-tools/test_mkdfu/test_mkdfu.py
-tools/test_mkuf2/test_mkuf2.py
 tools/unit-test-app/components/test_utils/ccomp_timer.c
 tools/unit-test-app/components/test_utils/include/ccomp_timer.h
 tools/unit-test-app/components/test_utils/private_include/ccomp_timer_impl.h
diff --git a/tools/ci/mypy_ignore_list.txt b/tools/ci/mypy_ignore_list.txt
index 04b33b6d30..1b7eee5add 100644
--- a/tools/ci/mypy_ignore_list.txt
+++ b/tools/ci/mypy_ignore_list.txt
@@ -217,7 +217,6 @@ tools/idf_py_actions/create_ext.py
 tools/idf_py_actions/debug_ext.py
 tools/idf_py_actions/dfu_ext.py
 tools/idf_py_actions/errors.py
-tools/idf_py_actions/global_options.py
 tools/idf_py_actions/serial_ext.py
 tools/idf_py_actions/tools.py
 tools/idf_py_actions/uf2_ext.py
diff --git a/tools/esp_app_trace/espytrace/apptrace.py b/tools/esp_app_trace/espytrace/apptrace.py
index 7a48afefce..4ffe947d13 100644
--- a/tools/esp_app_trace/espytrace/apptrace.py
+++ b/tools/esp_app_trace/espytrace/apptrace.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import print_function
 
 import os
@@ -7,12 +9,9 @@ try:
     from urlparse import urlparse
 except ImportError:
     from urllib.parse import urlparse
-try:
-    import SocketServer
-except ImportError:
-    import socketserver as SocketServer
 
 import os.path
+import socketserver as SocketServer
 import subprocess
 import tempfile
 import threading
diff --git a/tools/esp_app_trace/espytrace/sysview.py b/tools/esp_app_trace/espytrace/sysview.py
index d92d0125ea..11ace66d66 100644
--- a/tools/esp_app_trace/espytrace/sysview.py
+++ b/tools/esp_app_trace/espytrace/sysview.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import copy
 import json
 import re
diff --git a/tools/esp_app_trace/logtrace_proc.py b/tools/esp_app_trace/logtrace_proc.py
index ee7120e252..7f5caa903f 100755
--- a/tools/esp_app_trace/logtrace_proc.py
+++ b/tools/esp_app_trace/logtrace_proc.py
@@ -1,4 +1,6 @@
 #!/usr/bin/env python
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 
 from __future__ import print_function
diff --git a/tools/esp_app_trace/sysviewtrace_proc.py b/tools/esp_app_trace/sysviewtrace_proc.py
index 4de5143715..d442dfc233 100755
--- a/tools/esp_app_trace/sysviewtrace_proc.py
+++ b/tools/esp_app_trace/sysviewtrace_proc.py
@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2019 Espressif Systems (Shanghai) PTE LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 # This is python script to process various types trace data streams in SystemView format.
 # Trace data can be provided in multiple trace files (one per CPU). After processing phase
diff --git a/tools/gdb_panic_server.py b/tools/gdb_panic_server.py
index 0362c57c21..49382bdd61 100644
--- a/tools/gdb_panic_server.py
+++ b/tools/gdb_panic_server.py
@@ -15,19 +15,8 @@
 # The approach is inspired by Cesanta's ESP8266 GDB server:
 # https://github.com/cesanta/mongoose-os/blob/27777c8977/platforms/esp8266/tools/serve_core.py
 #
-# Copyright 2020 Espressif Systems (Shanghai) Co. Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 
 
diff --git a/tools/idf_monitor_base/chip_specific_config.py b/tools/idf_monitor_base/chip_specific_config.py
index fa207c5bdc..2184c4977c 100644
--- a/tools/idf_monitor_base/chip_specific_config.py
+++ b/tools/idf_monitor_base/chip_specific_config.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 # This file contains values (e.g. delay time, ...) that are different for each chip for a particular action.
 # If adding a new device, set only values that are different from the default, e.g.:
diff --git a/tools/idf_monitor_base/console_reader.py b/tools/idf_monitor_base/console_reader.py
index 82e305d20f..b0ff5bd103 100644
--- a/tools/idf_monitor_base/console_reader.py
+++ b/tools/idf_monitor_base/console_reader.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 
 import os
diff --git a/tools/idf_monitor_base/coredump.py b/tools/idf_monitor_base/coredump.py
index 0a2a9119f4..d91701cab0 100644
--- a/tools/idf_monitor_base/coredump.py
+++ b/tools/idf_monitor_base/coredump.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import io
 import os
 import queue
diff --git a/tools/idf_monitor_base/exceptions.py b/tools/idf_monitor_base/exceptions.py
index 57647cf677..c204ba2b39 100644
--- a/tools/idf_monitor_base/exceptions.py
+++ b/tools/idf_monitor_base/exceptions.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 class SerialStopException(Exception):
     """
diff --git a/tools/idf_monitor_base/gdbhelper.py b/tools/idf_monitor_base/gdbhelper.py
index f32d4fb688..66d0761db6 100644
--- a/tools/idf_monitor_base/gdbhelper.py
+++ b/tools/idf_monitor_base/gdbhelper.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import os
 import re
 import subprocess
diff --git a/tools/idf_monitor_base/line_matcher.py b/tools/idf_monitor_base/line_matcher.py
index e748f6154d..0d4d6b34f8 100644
--- a/tools/idf_monitor_base/line_matcher.py
+++ b/tools/idf_monitor_base/line_matcher.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import re
 
diff --git a/tools/idf_monitor_base/logger.py b/tools/idf_monitor_base/logger.py
index c165651c03..d18d8817c0 100644
--- a/tools/idf_monitor_base/logger.py
+++ b/tools/idf_monitor_base/logger.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import datetime
 import os
diff --git a/tools/idf_monitor_base/output_helpers.py b/tools/idf_monitor_base/output_helpers.py
index 480181e23d..5d87a5273c 100644
--- a/tools/idf_monitor_base/output_helpers.py
+++ b/tools/idf_monitor_base/output_helpers.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import subprocess
 import sys
diff --git a/tools/idf_monitor_base/stoppable_thread.py b/tools/idf_monitor_base/stoppable_thread.py
index 38f6b7a01a..def4de2de7 100644
--- a/tools/idf_monitor_base/stoppable_thread.py
+++ b/tools/idf_monitor_base/stoppable_thread.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import threading
 from typing import Optional
diff --git a/tools/idf_monitor_base/web_socket_client.py b/tools/idf_monitor_base/web_socket_client.py
index 1f3e934347..81d9bba7bd 100644
--- a/tools/idf_monitor_base/web_socket_client.py
+++ b/tools/idf_monitor_base/web_socket_client.py
@@ -1,16 +1,5 @@
-# Copyright 2015-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import json
 import time
diff --git a/tools/idf_py_actions/constants.py b/tools/idf_py_actions/constants.py
index 3f802a1c2b..b3e2abe3c4 100644
--- a/tools/idf_py_actions/constants.py
+++ b/tools/idf_py_actions/constants.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import collections
 import multiprocessing
 import os
diff --git a/tools/idf_py_actions/core_ext.py b/tools/idf_py_actions/core_ext.py
index 847cbbfd56..8587b2bb85 100644
--- a/tools/idf_py_actions/core_ext.py
+++ b/tools/idf_py_actions/core_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import fnmatch
 import locale
 import os
diff --git a/tools/idf_py_actions/create_ext.py b/tools/idf_py_actions/create_ext.py
index 76a282a5cd..4b2f3ca7f3 100644
--- a/tools/idf_py_actions/create_ext.py
+++ b/tools/idf_py_actions/create_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 from __future__ import print_function
 
 import os
diff --git a/tools/idf_py_actions/debug_ext.py b/tools/idf_py_actions/debug_ext.py
index 2e787a7884..28c6fa04ea 100644
--- a/tools/idf_py_actions/debug_ext.py
+++ b/tools/idf_py_actions/debug_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import json
 import os
 import re
diff --git a/tools/idf_py_actions/dfu_ext.py b/tools/idf_py_actions/dfu_ext.py
index f637a36534..ce357d29b2 100644
--- a/tools/idf_py_actions/dfu_ext.py
+++ b/tools/idf_py_actions/dfu_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 from idf_py_actions.errors import FatalError
 from idf_py_actions.tools import ensure_build_directory, is_target_supported, run_target
 
diff --git a/tools/idf_py_actions/errors.py b/tools/idf_py_actions/errors.py
index 9876d4d526..47c5b964dd 100644
--- a/tools/idf_py_actions/errors.py
+++ b/tools/idf_py_actions/errors.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 class FatalError(RuntimeError):
     """
     Wrapper class for runtime errors that aren't caused by bugs in idf.py or the build process.
diff --git a/tools/idf_py_actions/global_options.py b/tools/idf_py_actions/global_options.py
index c34c4a47fa..fecc40042e 100644
--- a/tools/idf_py_actions/global_options.py
+++ b/tools/idf_py_actions/global_options.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 global_options = [{
     'names': ['-D', '--define-cache-entry'],
     'help': 'Create a cmake cache entry.',
diff --git a/tools/idf_py_actions/tools.py b/tools/idf_py_actions/tools.py
index c9ee08fd04..d7dfa78b5b 100644
--- a/tools/idf_py_actions/tools.py
+++ b/tools/idf_py_actions/tools.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import os
 import re
 import subprocess
diff --git a/tools/idf_py_actions/uf2_ext.py b/tools/idf_py_actions/uf2_ext.py
index 5e0531ba1c..4c71f8753e 100644
--- a/tools/idf_py_actions/uf2_ext.py
+++ b/tools/idf_py_actions/uf2_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 from idf_py_actions.tools import ensure_build_directory, run_target
 
 
diff --git a/tools/mkdfu.py b/tools/mkdfu.py
index 5ba21c4e5d..fab42a36fa 100755
--- a/tools/mkdfu.py
+++ b/tools/mkdfu.py
@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2020-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 # This program creates archives compatible with ESP32-S* ROM DFU implementation.
 #
diff --git a/tools/mkuf2.py b/tools/mkuf2.py
index b03d3afe76..f36e4de888 100755
--- a/tools/mkuf2.py
+++ b/tools/mkuf2.py
@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2020 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import division
 
@@ -25,12 +14,6 @@ from functools import partial
 
 from future.utils import iteritems
 
-try:
-    from itertools import izip as zip
-except ImportError:
-    # Python 3
-    pass
-
 
 def round_up_int_div(n, d):
     # equivalent to math.ceil(n / d)
diff --git a/tools/test_idf_py/extra_path/some_ext.py b/tools/test_idf_py/extra_path/some_ext.py
index 75e6c94e21..e00e529dde 100644
--- a/tools/test_idf_py/extra_path/some_ext.py
+++ b/tools/test_idf_py/extra_path/some_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 def action_extensions(base_actions, project_path):
     def some_callback(ut_apply_config_name, ctx, args):
         print('!!! From some subcommand')
diff --git a/tools/test_idf_py/idf_ext.py b/tools/test_idf_py/idf_ext.py
index a854162a9f..9396bcf352 100644
--- a/tools/test_idf_py/idf_ext.py
+++ b/tools/test_idf_py/idf_ext.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 def action_extensions(base_actions, project_path=None):
     def echo(name, *args, **kwargs):
         print(name, args, kwargs)
diff --git a/tools/test_idf_py/test_idf_extensions/test_ext/__init__.py b/tools/test_idf_py/test_idf_extensions/test_ext/__init__.py
index 2f7b7f1ac0..d364a993fb 100644
--- a/tools/test_idf_py/test_idf_extensions/test_ext/__init__.py
+++ b/tools/test_idf_py/test_idf_extensions/test_ext/__init__.py
@@ -1 +1,3 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 from .test_extension import action_extensions  # noqa: F401
diff --git a/tools/test_idf_py/test_idf_extensions/test_ext/test_extension.py b/tools/test_idf_py/test_idf_extensions/test_ext/test_extension.py
index e9596f9664..e5c99bf094 100644
--- a/tools/test_idf_py/test_idf_extensions/test_ext/test_extension.py
+++ b/tools/test_idf_py/test_idf_extensions/test_ext/test_extension.py
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 import os
 
 
diff --git a/tools/test_idf_py/test_idf_py.py b/tools/test_idf_py/test_idf_py.py
index 4049a141a0..5a8ac54c8d 100755
--- a/tools/test_idf_py/test_idf_py.py
+++ b/tools/test_idf_py/test_idf_py.py
@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2019 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 import os
 import subprocess
diff --git a/tools/test_idf_size/test_idf_size.py b/tools/test_idf_size/test_idf_size.py
index 385f4e5410..41337e1a4f 100644
--- a/tools/test_idf_size/test_idf_size.py
+++ b/tools/test_idf_size/test_idf_size.py
@@ -1,18 +1,7 @@
 #!/usr/bin/env python
 #
-# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2018-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import print_function
 
diff --git a/tools/test_mkdfu/test_mkdfu.py b/tools/test_mkdfu/test_mkdfu.py
index 0646148518..373a7418ce 100755
--- a/tools/test_mkdfu/test_mkdfu.py
+++ b/tools/test_mkdfu/test_mkdfu.py
@@ -1,19 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright 2020-2021 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import unicode_literals
 
diff --git a/tools/test_mkuf2/test_mkuf2.py b/tools/test_mkuf2/test_mkuf2.py
index f87e167a63..b0c59ef650 100755
--- a/tools/test_mkuf2/test_mkuf2.py
+++ b/tools/test_mkuf2/test_mkuf2.py
@@ -1,19 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# Copyright 2020 Espressif Systems (Shanghai) CO LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 
 from __future__ import unicode_literals
 
@@ -32,12 +21,6 @@ from itertools import chain
 
 import pexpect
 
-try:
-    from itertools import izip as zip
-except ImportError:
-    # Python 3
-    pass
-
 current_dir = os.path.dirname(os.path.realpath(__file__))
 mkuf2_dir = os.path.abspath(os.path.join(current_dir, '..'))
 mkuf2_path = os.path.join(mkuf2_dir, 'mkuf2.py')