feat: Drop Python 3.8 support

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>

.gitlab/ci/build.yml

@@ -234,7 +234,7 @@ pytest_build_system_macos:
     - macos_shell
   parallel: 3
   variables:
-    PYENV_VERSION: "3.8"
+    PYENV_VERSION: "3.9"
     # CCACHE_DIR: "/cache/idf_ccache". On macOS, you cannot write to this folder due to insufficient permissions.
     CCACHE_DIR: "" # ccache will use "$HOME/Library/Caches/ccache".
     CCACHE_MAXSIZE: "5G" # To preserve the limited Macbook storage. CCACHE automatically prunes old caches to fit the set limit.

.gitlab/ci/common.yml

@@ -55,8 +55,8 @@ variables:
   CHECKOUT_REF_SCRIPT: "$CI_PROJECT_DIR/tools/ci/checkout_project_ref.py"
 
   # Docker images
-  ESP_ENV_IMAGE: "${CI_DOCKER_REGISTRY}/esp-env-v5.5:1"
+  ESP_ENV_IMAGE: "${CI_DOCKER_REGISTRY}/esp-env-v5.5:2"
-  ESP_IDF_DOC_ENV_IMAGE: "${CI_DOCKER_REGISTRY}/esp-idf-doc-env-v5.5:1-1"
+  ESP_IDF_DOC_ENV_IMAGE: "${CI_DOCKER_REGISTRY}/esp-idf-doc-env-v5.5:2-1"
   TARGET_TEST_ENV_IMAGE: "${CI_DOCKER_REGISTRY}/target-test-env-v5.5:2"
   SONARQUBE_SCANNER_IMAGE: "${CI_DOCKER_REGISTRY}/sonarqube-scanner:5"
   PRE_COMMIT_IMAGE: "${CI_DOCKER_REGISTRY}/esp-idf-pre-commit:1"

.gitlab/ci/host-test.yml

@@ -347,6 +347,7 @@ test_pytest_macos:
     reports:
       junit: XUNIT_RESULT.xml
   variables:
+    PYENV_VERSION: "3.9"
     PYTEST_IGNORE_COLLECT_IMPORT_ERROR: "1"
   script:
     - run_cmd python tools/ci/ci_build_apps.py components examples tools/test_apps -v

docs/en/api-guides/build-system.rst

@@ -131,7 +131,7 @@ For more detailed information about integrating ESP-IDF with CMake into an IDE,
 Setting up the Python Interpreter
 ---------------------------------
 
-ESP-IDF works well with Python version 3.8+.
+ESP-IDF works well with Python version 3.9+.
 
 ``idf.py`` and other Python scripts will run with the default Python interpreter, i.e., ``python``. You can switch to a different one like ``python3 $IDF_PATH/tools/idf.py ...``, or you can set up a shell alias or another script to simplify the command.
 

docs/en/api-guides/tools/idf-docker-image.rst

@@ -14,7 +14,7 @@ IDF Docker image (``espressif/idf``) is intended for building applications and l
 The image contains:
 
 - Common utilities such as ``git``, ``wget``, ``curl``, and ``zip``.
-- Python 3.8 or newer.
+- Python 3.9 or newer.
 - A copy of a specific version of ESP-IDF. See below for information about versions. ``IDF_PATH`` environment variable is set and points to the ESP-IDF location in the container.
 - All the build tools required for the specific version of ESP-IDF: CMake, Ninja, cross-compiler toolchains, etc.
 - All Python packages required by ESP-IDF are installed in a virtual environment.

docs/en/get-started/start-project.rst

@@ -160,7 +160,7 @@ With some Linux distributions, you may get the error message similar to ``Could
 Python Compatibility
 ~~~~~~~~~~~~~~~~~~~~
 
-ESP-IDF supports Python 3.8 or newer. It is recommended to upgrade your operating system to a recent version satisfying this requirement. Other options include the installation of Python from `sources <https://www.python.org/downloads/>`_ or the use of a Python version management system such as `pyenv <https://github.com/pyenv/pyenv>`_.
+ESP-IDF supports Python 3.9 or newer. It is recommended to upgrade your operating system to a recent version satisfying this requirement. Other options include the installation of Python from `sources <https://www.python.org/downloads/>`_ or the use of a Python version management system such as `pyenv <https://github.com/pyenv/pyenv>`_.
 
 .. only:: esp32 or esp32s2 or esp32s3
 

docs/zh_CN/api-guides/build-system.rst

@@ -131,7 +131,7 @@ idf.py
 设置 Python 解释器
 ------------------
 
-ESP-IDF 适用于 Python 3.8 以上版本。
+ESP-IDF 适用于 Python 3.9 以上版本。
 
 ``idf.py`` 和其他的 Python 脚本会使用默认的 Python 解释器运行，如 ``python``。你可以通过 ``python3 $IDF_PATH/tools/idf.py ...`` 命令切换到别的 Python 解释器，或者通过设置 shell 别名或其他脚本来简化该命令。
 

docs/zh_CN/api-guides/tools/idf-docker-image.rst

@@ -14,7 +14,7 @@ IDF Docker 镜像 (``espressif/idf``) 为使用特定版本的 ESP-IDF 自动化
 该镜像包含以下内容：
 
 - 常见的实用工具，如 ``git``、``wget``、``curl`` 和 ``zip``。
-- Python 3.8 或更高版本。
+- Python 3.9 或更高版本。
 - 特定版本 ESP-IDF 的副本。有关版本信息，请参阅下文。该副本中设置了 ``IDF_PATH`` 环境变量，并指向容器中 ESP-IDF 的位置。
 - 构建特定版本 ESP-IDF 所需工具：CMake、Ninja、交叉编译器工具链等。
 - ESP-IDF 需要的所有 Python 软件包。这些软件包均已安装在虚拟环境中。

docs/zh_CN/get-started/start-project.rst

@@ -160,7 +160,7 @@
 兼容的 Python 版本
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-ESP-IDF 支持 Python 3.8 及以上版本，建议升级操作系统到最新版本从而更新 Python。也可选择从 `sources <https://www.python.org/downloads/>`_ 安装最新版 Python，或使用 Python 管理系统如 `pyenv <https://github.com/pyenv/pyenv>`_ 对版本进行升级管理。
+ESP-IDF 支持 Python 3.9 及以上版本，建议升级操作系统到最新版本从而更新 Python。也可选择从 `sources <https://www.python.org/downloads/>`_ 安装最新版 Python，或使用 Python 管理系统如 `pyenv <https://github.com/pyenv/pyenv>`_ 对版本进行升级管理。
 
 .. only:: esp32 or esp32s2 or esp32s3
 

tools/detect_python.fish

@@ -3,11 +3,11 @@
 # This is a port of detect_python.sh. More information are provided there.
 
 set OLDEST_PYTHON_SUPPORTED_MAJOR 3
-set OLDEST_PYTHON_SUPPORTED_MINOR 8
+set OLDEST_PYTHON_SUPPORTED_MINOR 9
 
 set -x ESP_PYTHON python
 
-for p_cmd in python3 python python3.8 python3.9 python3.10 python3.11 python3.12;
+for p_cmd in python3 python python3.9 python3.10 python3.11 python3.12 python3.13;
     $p_cmd --version >/dev/null 2>&1; or continue
     echo "Checking \"$p_cmd\" ..."
 

tools/detect_python.sh

@@ -8,11 +8,11 @@
 # 3. If required version of python is not found, script will fail
 
 OLDEST_PYTHON_SUPPORTED_MAJOR=3
-OLDEST_PYTHON_SUPPORTED_MINOR=8
+OLDEST_PYTHON_SUPPORTED_MINOR=9
 
 ESP_PYTHON=python
 
-for p_cmd in python3 python python3.8 python3.9 python3.10 python3.11 python3.12; do
+for p_cmd in python3 python python3.9 python3.10 python3.11 python3.12 python3.13; do
     $p_cmd --version >/dev/null 2>&1 || continue
     echo "Checking \"$p_cmd\" ..."
 

tools/python_version_checker.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 #
-# SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -8,9 +8,8 @@
 #
 # There are related tools/detect_python.{sh,fish} scripts which are called earlier when the paths are not properly
 # set-up and they only intend to prefer the use of Python 3 over Python 2. Why not more? All possible executables
-# (python3.8, python3.9, ...) cannot be hardcoded there and at the end, the user is responsible to set-up a system
+# (python3.9, python3.10, ...) cannot be hardcoded there and at the end, the user is responsible to set-up a system
 # where "python" or "python3" of compatible version is available.
-
 import sys
 
 try:
@@ -20,7 +19,7 @@ try:
 except ImportError:
     pass
 
-OLDEST_PYTHON_SUPPORTED = (3, 8)  # keep it as tuple for comparison with sys.version_info
+OLDEST_PYTHON_SUPPORTED = (3, 9)  # keep it as tuple for comparison with sys.version_info
 
 
 def _ver_to_str(it):  # type: (Iterable) -> str