mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-07 01:10:52 -04:00
Federico Caselli
8849e2b775
Use cython for the internal result methods. This improves the speed of the row processing of about 15-30% depending on cases. Change-Id: Ia19c1a61aa1a55405b8327f88b1ee02627c4217a
98 lines
2.6 KiB
Python
98 lines
2.6 KiB
Python
from __future__ import annotations
|
|
|
|
import os
|
|
import platform
|
|
import sys
|
|
from typing import Any
|
|
from typing import cast
|
|
from typing import Dict
|
|
from typing import TYPE_CHECKING
|
|
|
|
from setuptools import setup
|
|
|
|
if TYPE_CHECKING:
|
|
from setuptools import Extension
|
|
|
|
try:
|
|
from Cython.Build import build_ext as _cy_build_ext
|
|
from Cython.Distutils.extension import Extension as _cy_Extension
|
|
|
|
HAS_CYTHON = True
|
|
except ImportError:
|
|
_cy_build_ext = _cy_Extension = None
|
|
HAS_CYTHON = False
|
|
|
|
IS_CPYTHON = platform.python_implementation() == "CPython"
|
|
DISABLE_EXTENSION = bool(os.environ.get("DISABLE_SQLALCHEMY_CEXT"))
|
|
REQUIRE_EXTENSION = bool(os.environ.get("REQUIRE_SQLALCHEMY_CEXT"))
|
|
|
|
if DISABLE_EXTENSION and REQUIRE_EXTENSION:
|
|
raise RuntimeError(
|
|
"Cannot set both 'DISABLE_SQLALCHEMY_CEXT' and "
|
|
"'REQUIRE_SQLALCHEMY_CEXT' environment variables"
|
|
)
|
|
|
|
# when adding a cython module, also update the imports in _has_cython
|
|
# it is tested in test_setup_defines_all_files
|
|
CYTHON_MODULES = (
|
|
"engine._processors_cy",
|
|
"engine._row_cy",
|
|
"engine._result_cy",
|
|
"engine._util_cy",
|
|
"sql._util_cy",
|
|
"util._collections_cy",
|
|
"util._immutabledict_cy",
|
|
)
|
|
|
|
if HAS_CYTHON and IS_CPYTHON and not DISABLE_EXTENSION:
|
|
assert _cy_Extension is not None
|
|
assert _cy_build_ext is not None
|
|
from Cython.Compiler import Options
|
|
|
|
Options.docstrings = False
|
|
Options.clear_to_none = False
|
|
|
|
cython_directives: Dict[str, Any] = {
|
|
"language_level": "3",
|
|
# "initializedcheck": False,
|
|
}
|
|
|
|
if sys.version_info >= (3, 13):
|
|
cython_directives["freethreading_compatible"] = True
|
|
|
|
module_prefix = "sqlalchemy."
|
|
source_prefix = "lib/sqlalchemy/"
|
|
|
|
ext_modules = cast(
|
|
"list[Extension]",
|
|
[
|
|
_cy_Extension(
|
|
f"{module_prefix}{module}",
|
|
sources=[f"{source_prefix}{module.replace('.', '/')}.py"],
|
|
cython_directives=cython_directives,
|
|
optional=not REQUIRE_EXTENSION,
|
|
)
|
|
for module in CYTHON_MODULES
|
|
],
|
|
)
|
|
|
|
cmdclass = {"build_ext": _cy_build_ext}
|
|
|
|
elif REQUIRE_EXTENSION:
|
|
reasons = []
|
|
if not HAS_CYTHON:
|
|
reasons.append("Cython is missing")
|
|
if not IS_CPYTHON:
|
|
reasons.append("Not CPython, build is supported only on it")
|
|
raise RuntimeError(
|
|
"Cython extension build is required because REQUIRE_SQLALCHEMY_CEXT "
|
|
f"is set but it was deselected because: {'; '.join(reasons)}; "
|
|
"will not degrade to pure python install"
|
|
)
|
|
|
|
else:
|
|
ext_modules = []
|
|
cmdclass = {}
|
|
|
|
setup(cmdclass=cmdclass, ext_modules=ext_modules)
|