switch to pybind 3.0

Drop support for Python 3.7 and CMake < 3.15.

Author: lonvia

.github/workflows/ci.yml

@@ -23,17 +23,6 @@ jobs:
             - name: Typecheck package
               run: mypy src
 
-            - name: Set up Python 3.7
-              uses: actions/setup-python@v5
-              with:
-                  python-version: 3.7
-
-            - name: Build package 3.7
-              run: |
-                pip install build wheel
-                python -m build
-              shell: bash
-
             - name: Set up Python 3.8
               uses: actions/setup-python@v5
               with:
@@ -93,7 +82,6 @@ jobs:
               uses: actions/setup-python@v5
               with:
                   python-version: "3.13"
-                  allow-prereleases: true
 
             - name: Build package 3.13
               run: |
@@ -114,7 +102,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
+                python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
 
         steps:
             - uses: actions/checkout@v4
@@ -159,14 +147,14 @@ jobs:
                       cc: gcc-10
                       cxx: g++-10
                       platform: ubuntu-22.04
-                      python: 3.7
+                      python: 3.8
                       deps: release
                       flavour: linux
                     - compiler: clang-old
                       cc: clang-13
                       cxx: clang++-13
                       platform: ubuntu-22.04
-                      python: 3.7
+                      python: 3.8
                       deps: release
                       flavour: linux
                     - compiler: gcc
@@ -268,19 +256,6 @@ jobs:
               run: vcpkg install bzip2:x64-windows expat:x64-windows zlib:x64-windows boost-variant:x64-windows boost-iterator:x64-windows lz4:x86-windows
               shell: bash
 
-            - name: Set up Python 3.7
-              uses: actions/setup-python@v5
-              with:
-                  python-version: 3.7
-
-            - name: Build package 3.7
-              run: |
-                pip install build wheel
-                python -m build
-              shell: bash
-              env:
-                  CMAKE_TOOLCHAIN_FILE: C:/vcpkg/scripts/buildsystems/vcpkg.cmake
-
             - name: Set up Python 3.8
               uses: actions/setup-python@v5
               with:
@@ -350,7 +325,6 @@ jobs:
               uses: actions/setup-python@v5
               with:
                   python-version: "3.13"
-                  allow-prereleases: true
 
             - name: Build package 3.13
               run: |
@@ -373,7 +347,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+                python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
         env:
             PYTEST_ADDOPTS: ${{ matrix.test-args }}

CMakeLists.txt

@@ -1,5 +1,5 @@
-cmake_minimum_required(VERSION 3.8.0)
-project(pyosmium VERSION 3.6.0)
+cmake_minimum_required(VERSION 3.15.0)
+project(pyosmium VERSION 4.0.2)
 
 option(WITH_LZ4 "Build with lz4 support for PBF files" ON)
 
@@ -29,15 +29,12 @@ if(NOT "${CMAKE_CXX_STANDARD}")
     set(CMAKE_CXX_STANDARD 17)
 endif()
 
-# required for pybind11 < 2.6
-if(MSVC)
-    set(PYBIND11_CPP_STANDARD /std=c++${CMAKE_CXX_STANDARD})
-else()
-    set(PYBIND11_CPP_STANDARD -std=c++${CMAKE_CXX_STANDARD})
-endif()
+set(PYBIND11_CPP_STANDARD -std=c++${CMAKE_CXX_STANDARD})
 
 message(STATUS "Building in C++${CMAKE_CXX_STANDARD} mode")
 
+find_package(Python COMPONENTS Interpreter Development)
+
 if(PYBIND11_PREFIX)
     add_subdirectory(${PYBIND11_PREFIX} contrib/pybind11)
 else()

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "osmium"
 description = "Python bindings for libosmium, the data processing library for OSM data"
 readme = "README.rst"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 license = {text = 'BSD-2-Clause'}
 authors = [
     {name = "Sarah Hoffmann", email = "[email protected]"}
@@ -19,7 +19,6 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: BSD License",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",

src/osmium/version.py

@@ -2,7 +2,7 @@
 #
 # This file is part of pyosmium. (https://osmcode.org/pyosmium/)
 #
-# Copyright (C) 2024 Sarah Hoffmann <[email protected]> and others.
+# Copyright (C) 2025 Sarah Hoffmann <[email protected]> and others.
 # For a full list of authors see the git log.
 """
 Version information.
@@ -16,6 +16,6 @@
 # libosmium version shipped with the Pip release
 libosmium_version = '2.20.0'
 # protozero version shipped with the Pip release
-protozero_version = '1.7.1'
+protozero_version = '1.8.1'
 # pybind11 version shipped with the Pip release
-pybind11_version = '2.13.6'
+pybind11_version = '3.0.0'