Python 3.9-3.13

Python 3.13 is released.
Python 3.8 is EOL as of October 2024.

Dockerfile

@@ -112,21 +112,6 @@ RUN         for whl in /opt/src/dist/*.whl; do \
             && du -hs /opt/src/dist/* \
             && du -hs /wheelhouse/*
 
-# test in fresh env: Debian:Sid + Python 3.8
-FROM       debian:sid
-ENV        DEBIAN_FRONTEND noninteractive
-COPY --from=build-env /wheelhouse/openPMD_api-*-cp38-cp38-manylinux2010_x86_64.whl .
-RUN        apt-get update \
-           && apt-get install -y --no-install-recommends python3.8 python3-distutils ca-certificates curl \
-           && rm -rf /var/lib/apt/lists/*
-RUN        python3.8 --version \
-           && curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py \
-           && python3.8 get-pip.py \
-           && python3.8 -m pip install openPMD_api-*-cp38-cp38-manylinux2010_x86_64.whl
-RUN        python3.8 -c "import openpmd_api as io; print(io.__version__); print(io.variants)"
-RUN        python3.8 -m openpmd_api.ls --help
-RUN        openpmd-ls --help
-
 # test in fresh env: Debian:Bullseye + Python 3.9
 FROM       debian:bullseye
 ENV        DEBIAN_FRONTEND noninteractive

Singularity

@@ -42,7 +42,7 @@ Supported frontends are C++11 and Python3.
         -DopenPMD_USE_PYTHON=ON  \
         -DopenPMD_BUILD_TESTING=OFF       \
         -DCMAKE_INSTALL_PREFIX=/usr/local \
-        -DCMAKE_INSTALL_PYTHONDIR=lib/python3.6/dist-packages
+        -DCMAKE_INSTALL_PYTHONDIR=lib/python3.12/dist-packages
     make
     # make test
     make install

cmake/dependencies/pybind11.cmake

@@ -78,9 +78,9 @@ set(openPMD_pybind11_branch "v2.13.6"
     "Repository branch for openPMD_pybind11_repo if(openPMD_USE_INTERNAL_PYBIND11)")
 
 if(openPMD_USE_PYTHON STREQUAL AUTO)
-    find_package(Python 3.7.0 COMPONENTS Interpreter Development.Module)
+    find_package(Python 3.9.0 COMPONENTS Interpreter Development.Module)
 elseif(openPMD_USE_PYTHON)
-    find_package(Python 3.7.0 COMPONENTS Interpreter Development.Module REQUIRED)
+    find_package(Python 3.9.0 COMPONENTS Interpreter Development.Module REQUIRED)
 else()
     set(openPMD_HAVE_PYTHON FALSE)
 endif()

conda.yml

@@ -36,7 +36,7 @@ dependencies:
   - pre-commit
   - pyarrow  # for dask
 #  - pybind11  # shipped internally
-  - python>=3.8
+  - python>=3.9
 
 # just a note for later hackery, we could install pip packages inside the env, too:
 #  - pip:

docs/source/install/install.rst

@@ -192,7 +192,7 @@ CMake will summarize the install paths for you before the build step.
    # Note that one some systems, /lib might need to be replaced with /lib64.
 
    #                change path to your python MAJOR.MINOR version
-   export PYTHONPATH=$HOME/somepath/lib/python3.8/site-packages:$PYTHONPATH
+   export PYTHONPATH=$HOME/somepath/lib/python3.12/site-packages:$PYTHONPATH
 
 Adding those lines to your ``$HOME/.bashrc`` and re-opening your terminal will set them permanently.
 

setup.py

@@ -196,7 +196,7 @@ def build_extension(self, ext):
     cmdclass=dict(build_ext=CMakeBuild),
     # scripts=['openpmd-ls'],
     zip_safe=False,
-    python_requires='>=3.8',
+    python_requires='>=3.9',
     # tests_require=['pytest'],
     install_requires=install_requires,
     # see: src/bindings/python/cli
@@ -225,7 +225,6 @@ def build_extension(self, ext):
         'Topic :: Database :: Front-Ends',
         'Programming Language :: C++',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',