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Bump cffi to 1.17 for Python up to 3.13, 2.0.0beta1 for 3.14+ #274

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clin1234 wants to merge 3 commits into from
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Bump cffi to 1.17 for Python up to 3.13, 2.0.0beta1 for 3.14+ #274

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ee643bc
Require cffi 2.0.0b1 as minimum version
clin1234 Aug 18, 2025
65ec6ca
Split minimum cffi version depending on Python version
clin1234 Aug 24, 2025
42fa482
Update uv.lock, particularlly cffi wheels
clin1234 Aug 24, 2025
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6 changes: 4 additions & 2 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,8 @@ dependencies = []

[project.optional-dependencies]
cffi = [
'cffi>=1.17 ; python_version >= "3.13" and platform_python_implementation != "PyPy"',
"cffi~=1.17; platform_python_implementation != 'PyPy' and python_version < '3.14'",
"cffi>=2.0.0b; platform_python_implementation != 'PyPy' and python_version >= '3.14'",
]

[project.urls]
Expand All @@ -34,7 +35,8 @@ Documentation = "https://python-zstandard.readthedocs.io/en/latest/"

[build-system]
requires = [
"cffi>=1.17.0 ; platform_python_implementation != 'PyPy'",
"cffi~=1.17; platform_python_implementation != 'PyPy' and python_version < '3.14'",
"cffi>=2.0.0b; platform_python_implementation != 'PyPy' and python_version >= '3.14'",
"packaging",
"setuptools",
]
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8 changes: 7 additions & 1 deletion setup.py
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Expand Up @@ -10,6 +10,7 @@
import os
import platform
import sys
import sysconfig

from setuptools import setup

Expand All @@ -30,7 +31,8 @@
# garbage collection pitfalls.
# Require 1.17 everywhere so we don't have to think about supporting older
# versions.
MINIMUM_CFFI_VERSION = "1.17"
# Require 2.0 when building with 3.14+ for improved free-threading support
MINIMUM_CFFI_VERSION = "2.0" if sys.version_info[0:2] >= (3, 14) else "1.17"

ext_suffix = os.environ.get("SETUPTOOLS_EXT_SUFFIX")
if ext_suffix:
Expand Down Expand Up @@ -89,6 +91,10 @@
if platform.python_implementation() == "PyPy":
C_BACKEND = False

# cffi only supports no-GIL with Python 3.14+
if platform.python_implementation() == "CPython" and sys.version_info[0:2] == (3, 13) and sysconfig.get_config_var("Py_GIL_DISABLED"):
CFFI_BACKEND = False

if "--legacy" in sys.argv:
SUPPORT_LEGACY = True
sys.argv.remove("--legacy")
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