Add support for Python 3.13rc1 and drop support for Python 3.7.

.github/workflows/all.yml

@@ -131,11 +131,11 @@ jobs:
           ccache --show-stats --verbose
           ccache --zero-stats
         #  cat ${{ runner.workspace }}/.ccache_log || true
-      - name: Delete Existing Cache for ${{ runner.os }} Objects
-        run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
-        env:
-          # This token requires the "repo" scope.
-          GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
+      # - name: Delete Existing Cache for ${{ runner.os }} Objects
+      #   run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
+      #   env:
+      #     # This token requires the "repo" scope.
+      #     GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
       - name: Save Cached ${{ runner.os }} Objects
         id: cache-objects-save
         uses: actions/cache/save@v4
@@ -215,11 +215,11 @@ jobs:
           ccache --zero-stats
         #  cat ${{ runner.workspace }}/.ccache_log || true
         #  ls -lashR ${{ runner.workspace }}/pedalboard
-      - name: Delete Existing Cache for ${{ runner.os }} Objects
-        run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
-        env:
-          # This token requires the "repo" scope.
-          GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
+      # - name: Delete Existing Cache for ${{ runner.os }} Objects
+      #   run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
+      #   env:
+      #     # This token requires the "repo" scope.
+      #     GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
       - name: Save Cached ${{ runner.os }} Objects
         id: cache-objects-save
         uses: actions/cache/save@v4
@@ -314,11 +314,11 @@ jobs:
           ccache --zero-stats
         #  cat ${{ runner.workspace }}/.ccache_log || true
         #  ls -lashR ${{ runner.workspace }}
-      - name: Delete Existing Cache for ${{ runner.os }} Objects
-        run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
-        env:
-          # This token requires the "repo" scope.
-          GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
+      # - name: Delete Existing Cache for ${{ runner.os }} Objects
+      #   run: gh cache delete --repo ${{ github.repository }} ${{ steps.cache-objects-restore.outputs.cache-primary-key }}
+      #   env:
+      #     # This token requires the "repo" scope.
+      #     GITHUB_TOKEN: ${{ secrets.ACTION_CLEAR_CACHES_TOKEN }}
       - name: Save Cached ${{ runner.os }} Objects
         id: cache-objects-save
         uses: actions/cache/save@v4
@@ -447,24 +447,24 @@ jobs:
     strategy:
       matrix:
         include:
-          - { os: macos-13, python-version: "3.7", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: macos-13, python-version: "3.8", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: macos-13, python-version: "3.9", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: macos-13, python-version: "3.10", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: macos-13, python-version: "3.11", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: macos-13, python-version: "3.12", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
-          - { os: ubuntu-20.04, python-version: "3.7", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
+          - { os: macos-13, python-version: "3.13.0-rc.1", compiler: "clang", cc: "ccache clang", cxx: "ccache clang++" }
           - { os: ubuntu-20.04, python-version: "3.8", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
           - { os: ubuntu-20.04, python-version: "3.9", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
           - { os: ubuntu-20.04, python-version: "3.10", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
           - { os: ubuntu-20.04, python-version: "3.11", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
           - { os: ubuntu-20.04, python-version: "3.12", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
-          # - { os: windows-latest, python-version: "3.7", compiler: "msvc", cc: "msvc", cxx: "msvc" }
+          - { os: ubuntu-20.04, python-version: "3.13.0-rc.1", compiler: "gcc", cc: "ccache gcc", cxx: "ccache g++" }
           # - { os: windows-latest, python-version: "3.8", compiler: "msvc", cc: "msvc", cxx: "msvc" }
           # - { os: windows-latest, python-version: "3.9", compiler: "msvc", cc: "msvc", cxx: "msvc" }
           # - { os: windows-latest, python-version: "3.10", compiler: "msvc", cc: "msvc", cxx: "msvc" }
           # - { os: windows-latest, python-version: "3.11", compiler: "msvc", cc: "msvc", cxx: "msvc" }
           - { os: windows-latest, python-version: "3.12", compiler: "msvc", cc: "msvc", cxx: "msvc" }
+          - { os: windows-latest, python-version: "3.13.0-rc.1", compiler: "msvc", cc: "msvc", cxx: "msvc" }
     name: Test with Python ${{ matrix.python-version }} on ${{ matrix.os }}
     steps:
       - name: Set up Python ${{ matrix.python-version }}
@@ -593,7 +593,7 @@ jobs:
     needs: [prime-asan-build-caches]
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
         os: ['ubuntu-20.04']
     name: Test with Python ${{ matrix.python-version }} + Address Sanitizer
     steps:
@@ -679,47 +679,45 @@ jobs:
     strategy:
       matrix:
         include:
-        - { os: macos-12, build: cp36-macosx_x86_64 }
-        - { os: macos-12, build: cp37-macosx_x86_64 }
         - { os: macos-12, build: cp38-macosx_x86_64 }
         - { os: macos-12, build: cp39-macosx_x86_64 }
         - { os: macos-12, build: cp310-macosx_x86_64 }
         - { os: macos-12, build: cp311-macosx_x86_64 }
         - { os: macos-12, build: cp312-macosx_x86_64 }
+        # - { os: macos-12, build: cp313-macosx_x86_64 }
+        # - { os: macos-12, build: cp313t-macosx_x86_64 }
         - { os: macos-12, build: cp38-macosx_universal2 }
         - { os: macos-12, build: cp39-macosx_universal2 }
         - { os: macos-12, build: cp310-macosx_universal2 }
         - { os: macos-12, build: cp311-macosx_universal2 }
         - { os: macos-12, build: cp312-macosx_universal2 }
+        # - { os: macos-12, build: cp313-macosx_universal2 }
+        # - { os: macos-12, build: cp313t-macosx_universal2 }
         - { os: macos-12, build: cp38-macosx_arm64 }
         - { os: macos-12, build: cp39-macosx_arm64 }
         - { os: macos-12, build: cp310-macosx_arm64 }
         - { os: macos-12, build: cp311-macosx_arm64 }
         - { os: macos-12, build: cp312-macosx_arm64 }
+        # - { os: macos-12, build: cp313-macosx_arm64 }
+        # - { os: macos-12, build: cp313t-macosx_arm64 }
         - { os: macos-12, build: pp37-macosx_x86_64 }
         - { os: macos-12, build: pp38-macosx_x86_64 }
         - { os: macos-12, build: pp39-macosx_x86_64 }
-        - { os: windows-latest, build: cp36-win_amd64 }
-        - { os: windows-latest, build: cp37-win_amd64 }
         - { os: windows-latest, build: cp38-win_amd64 }
         - { os: windows-latest, build: cp39-win_amd64 }
         - { os: windows-latest, build: cp310-win_amd64 }
         - { os: windows-latest, build: cp311-win_amd64 }
         - { os: windows-latest, build: cp312-win_amd64 }
+        # - { os: windows-latest, build: cp313-win_amd64 }
+        # - { os: windows-latest, build: cp313t-win_amd64 }
         - { os: windows-latest, build: pp37-win_amd64 }
         - { os: windows-latest, build: pp38-win_amd64 }
         - { os: windows-latest, build: pp39-win_amd64 }
-        - { os: windows-latest, build: cp36-win32 }
-        - { os: windows-latest, build: cp37-win32 }
         - { os: windows-latest, build: cp38-win32 }
         - { os: windows-latest, build: cp39-win32 }
         - { os: windows-latest, build: cp310-win32 }
         - { os: windows-latest, build: cp311-win32 }
         - { os: windows-latest, build: cp312-win32 }
-        - { os: 'ubuntu-20.04', build: cp36-manylinux_x86_64 }
-        - { os: 'ubuntu-20.04', build: cp36-manylinux_aarch64 }
-        - { os: 'ubuntu-20.04', build: cp37-manylinux_x86_64 }
-        - { os: 'ubuntu-20.04', build: cp37-manylinux_aarch64 }
         - { os: 'ubuntu-20.04', build: cp38-manylinux_x86_64 }
         - { os: 'ubuntu-20.04', build: cp38-manylinux_aarch64 }
         - { os: 'ubuntu-20.04', build: cp38-musllinux_x86_64 }
@@ -740,6 +738,14 @@ jobs:
         - { os: 'ubuntu-20.04', build: cp312-manylinux_aarch64 }
         - { os: 'ubuntu-20.04', build: cp312-musllinux_x86_64 }
         - { os: 'ubuntu-20.04', build: cp312-musllinux_aarch64 }
+        - { os: 'ubuntu-20.04', build: cp313-manylinux_x86_64 }
+        - { os: 'ubuntu-20.04', build: cp313-manylinux_aarch64 }
+        # - { os: 'ubuntu-20.04', build: cp313-musllinux_x86_64 }
+        # - { os: 'ubuntu-20.04', build: cp313-musllinux_aarch64 }
+        - { os: 'ubuntu-20.04', build: cp313t-manylinux_x86_64 }
+        - { os: 'ubuntu-20.04', build: cp313t-manylinux_aarch64 }
+        # - { os: 'ubuntu-20.04', build: cp313t-musllinux_x86_64 }
+        # - { os: 'ubuntu-20.04', build: cp313t-musllinux_aarch64 }
         - { os: 'ubuntu-20.04', build: pp37-manylinux_x86_64 }
         - { os: 'ubuntu-20.04', build: pp37-manylinux_aarch64 }
         - { os: 'ubuntu-20.04', build: pp38-manylinux_x86_64 }
@@ -779,10 +785,12 @@ jobs:
           # The musllinux containers on aarch64 take 6+ hours to test.
           # Also testing any pypy versions fails, as TensorFlow isn't pypy compatible.
           CIBW_TEST_SKIP: "*manylinux* *musllinux_aarch* *pp* *-macosx_universal2:arm64"
+          CIBW_PRERELEASE_PYTHONS: "1"
           # Use the minimum macOS deployment target that has C++17 support:
           MACOSX_DEPLOYMENT_TARGET: "10.13"
           CIBW_MUSLLINUX_X86_64_IMAGE: quay.io/pypa/musllinux_1_1_x86_64:2024-04-29-07d05a0
           CIBW_MUSLLINUX_AARCH64_IMAGE: quay.io/pypa/musllinux_1_1_aarch64:2024-04-29-07d05a0
+          CIBW_FREE_THREADED_SUPPORT: "1"
       - uses: actions/upload-artifact@v2
         with:
           path: ./wheelhouse/*.whl

CONTRIBUTING.md

@@ -8,7 +8,7 @@ We'd love to get patches from you!
 
 To compile Pedalboard from scratch, the following packages will need to be installed:
 
-- [Python 3.7](https://www.python.org/downloads/) or higher.
+- [Python 3.8](https://www.python.org/downloads/) or higher.
 - A C++ compiler, e.g. `gcc`, `clang`, etc.
   - On macOS, a working Xcode installation should provide this.
 - On Linux:

README.md

@@ -56,7 +56,7 @@ If you are new to Python, follow [INSTALLATION.md](https://github.com/spotify/pe
 
 ### Compatibility
 
-`pedalboard` is thoroughly tested with Python 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, and 3.12 as well as experimental support for PyPy 3.7, 3.8, and 3.9.
+`pedalboard` is thoroughly tested with Python 3.8, 3.9, 3.10, 3.11, 3.12, and 3.13.
 
 - Linux
   - Tested heavily in production use cases at Spotify

pedalboard/python_bindings.cpp

@@ -72,7 +72,7 @@ namespace py = pybind11;
 
 using namespace Pedalboard;
 
-PYBIND11_MODULE(pedalboard_native, m) {
+PYBIND11_MODULE(pedalboard_native, m, py::mod_gil_not_used()) {
   m.doc() =
       ("This module provides classes and functions for generating and adding "
        "effects to audio. Most classes in this module are subclasses of "

pyproject.toml

@@ -2,9 +2,11 @@
 requires = [
     "setuptools>=59.6.0",
     "wheel>=0.36.2",
-    "pybind11>=2.12",
+    'pybind11>=2.13; python_version>="3.9"',
+    'pybind11<=2.12; python_version<="3.8"',
     # Building with NumPy 2 allows backwards compatibility with NumPy 1:
-    'numpy>=2; python_version>="3.9"',
+    'numpy>=2.1.0rc1; python_version>="3.13"',
+    'numpy>=2; python_version>="3.9" and python_version<"3.13"',
     'numpy<2; python_version<="3.8"',
 ]
 
@@ -18,4 +20,4 @@ before-all = "yum install -y libsndfile libX11-devel libXrandr-devel libXinerama
 # Use apk instead of yum when building on Alpine Linux
 # (Note: this is experimental, as most VSTs require glibc and thus Alpine Linux isn't that useful)
 select = "*-musllinux*"
-before-all = "apk add libsndfile libx11-dev libxrandr-dev libxinerama-dev libxrender-dev libxcomposite-dev libxinerama-dev libxcursor-dev freetype-dev libexecinfo-dev"
+before-all = "apk add libsndfile libx11-dev libxrandr-dev libxinerama-dev libxrender-dev libxcomposite-dev libxinerama-dev libxcursor-dev freetype-dev"

setup.py

@@ -483,13 +483,12 @@ def build_extensions(self, *args, **kwargs):
         "Programming Language :: C++",
         "Programming Language :: Python",
         "Topic :: Multimedia :: Sound/Audio",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
     ],
     ext_modules=[pedalboard_cpp],
     install_requires=["numpy"],

test-requirements.txt

@@ -2,13 +2,16 @@ coverage
 pytest>6.2
 pytest-cov
 pytest-mock
-pybind11>=2.10.4
+pybind11<2.13; python_version < '3.7'
+pybind11>=2.13; python_version >= '3.7'
 setuptools>=59
 pip>22; python_version > '3.6'
 pip>21; python_version < '3.7'
 wheel
 
-numpy
+numpy>=2.1.0rc1; python_version>="3.13"
+numpy>=2; python_version>="3.9" and python_version<"3.13"
+numpy<2; python_version<="3.8"
 google-cloud-storage
 tqdm
 psutil

vendors/execinfo.h

@@ -0,0 +1,35 @@
+/* Copyright (C) 1998-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _EXECINFO_H
+#define _EXECINFO_H 1
+
+/* Store up to SIZE return address of the current program state in
+   ARRAY and return the exact number of values stored.  */
+int backtrace(void **__array, int __size) { return 0; }
+
+/* Return names of functions from the backtrace list in ARRAY in a newly
+   malloc()ed memory block.  */
+char **backtrace_symbols(void *const *__array, int __size) {
+  return (char **)0;
+}
+
+/* This function is similar to backtrace_symbols() but it writes the result
+   immediately to a file.  */
+void backtrace_symbols_fd(void *const *__array, int __size, int __fd) {}
+
+#endif /* execinfo.h  */