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import glob
import os
from os import path
import platform
from setuptools import setup
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
DISABLE_EXTENSION = bool(os.environ.get('FALCON_DISABLE_CYTHON'))
IS_CPYTHON = platform.python_implementation() == 'CPython'
MYDIR = path.abspath(os.path.dirname(__file__))
if HAS_CYTHON and IS_CPYTHON and not DISABLE_EXTENSION:
assert _cy_Extension is not None
assert _cy_build_ext is not None
def list_modules(dirname, pattern):
filenames = glob.glob(path.join(dirname, pattern))
module_names = []
for name in filenames:
module, ext = path.splitext(path.basename(name))
if module != '__init__':
module_names.append((module, ext))
return module_names
package_names = [
'falcon',
'falcon.cyutil',
'falcon.media',
'falcon.routing',
'falcon.util',
]
modules_to_exclude = [
# NOTE(kgriffs): Cython does not handle dynamically-created async
# methods correctly.
# NOTE(vytas,kgriffs): We have to also avoid cythonizing several
# other functions that might make it so that the framework
# can not recognize them as coroutine functions.
#
# See also:
#
# * https://github.com/cython/cython/issues/2273
# * https://bugs.python.org/issue38225
#
# NOTE(vytas): It is pointless to cythonize reader.py, since cythonized
# Falcon is using reader.pyx instead.
'falcon.hooks',
'falcon.inspect',
'falcon.responders',
'falcon.util.reader',
'falcon.util.sync',
]
cython_package_names = ('falcon.cyutil',)
# NOTE(vytas): Now that all our codebase is Python 3.7+, specify the
# Python 3 language level for Cython as well to avoid any surprises.
cython_directives = {'language_level': '3', 'annotation_typing': False}
ext_modules = [
_cy_Extension(
package + '.' + module,
sources=[path.join(*(package.split('.') + [module + ext]))],
cython_directives=cython_directives,
optional=True,
)
for package in package_names
for module, ext in list_modules(
path.join(MYDIR, *package.split('.')),
('*.pyx' if package in cython_package_names else '*.py'),
)
if (package + '.' + module) not in modules_to_exclude
]
cmdclass = {'build_ext': _cy_build_ext}
else:
ext_modules = []
cmdclass = {}
setup(cmdclass=cmdclass, ext_modules=ext_modules)
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