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Add parallel compile from pybind11 #8990

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Merged
merged 6 commits into from
Jul 15, 2025
Merged

Add parallel compile from pybind11 #8990

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2059e06
Add parallel compile from pybind11
wiredfool May 30, 2025
b931402
add pybind11 elsewhere so mypy can find it
wiredfool May 31, 2025
2316c93
Removed default argument
radarhere Jun 19, 2025
a549c55
Merge branch 'main' into pybind11
radarhere Jun 25, 2025
ecd264f
Use "parallel" config setting and 4 as defaults
radarhere Jun 21, 2025
23ed906
Removed default limit of 4
radarhere Jun 25, 2025
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1 change: 1 addition & 0 deletions .ci/requirements-mypy.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ ipython
numpy
packaging
pyarrow-stubs
pybind11
pytest
sphinx
types-atheris
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1 change: 1 addition & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
[build-system]
build-backend = "backend"
requires = [
"pybind11",
"setuptools>=77",
]
backend-path = [
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5 changes: 4 additions & 1 deletion setup.py
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Expand Up @@ -18,9 +18,12 @@
from collections.abc import Iterator
from typing import Any

from pybind11.setup_helpers import ParallelCompile
from setuptools import Extension, setup
from setuptools.command.build_ext import build_ext

ParallelCompile("MAX_CONCURRENCY", default=0).install()


def get_version() -> str:
version_file = "src/PIL/_version.py"
Expand Down Expand Up @@ -1048,12 +1051,12 @@ def debug_build() -> bool:
Extension("PIL._imagingmorph", ["src/_imagingmorph.c"]),
]


# parse configuration from _custom_build/backend.py
while sys.argv[-1].startswith("--pillow-configuration="):
_, key, value = sys.argv.pop().split("=", 2)
configuration.setdefault(key, []).append(value)


try:
setup(
cmdclass={"build_ext": pil_build_ext},
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