def test_numpy_abs(self, dtype):
if (sys.platform == "cygwin" and dtype == np.clongdouble
and (_pep440.parse(platform.release().split("-")[0]) <
_pep440.Version("3.3.0"))):
pytest.xfail(
reason="absl is computed in double precision on cygwin < 3.3")
self._test_abs_func(np.abs, dtype)
def _needs_gcc_c99_flag(obj):
if obj.compiler.compiler_type != 'unix':
return False
cc = obj.compiler.compiler[0]
if "gcc" not in cc:
return False
# will print something like '4.2.1\n'
out = subprocess.run([cc, '-dumpversion'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True)
# -std=c99 is default from this version on
if _pep440.parse(out.stdout) >= _pep440.Version('5.0'):
return False
return True
def generate_cython():
# Check Cython version
from numpy.compat import _pep440
try:
# try the cython in the installed python first (somewhat related to
# scipy/scipy#2397)
import Cython
from Cython.Compiler.Version import version as cython_version
except ImportError as e:
# The `cython` command need not point to the version installed in the
# Python running this script, so raise an error to avoid the chance of
# using the wrong version of Cython.
msg = 'Cython needs to be installed in Python as a module'
raise OSError(msg) from e
else:
# Note: keep in sync with that in pyproject.toml
# Update for Python 3.10
required_version = '0.29.24'
if _pep440.parse(cython_version) < _pep440.Version(required_version):
cython_path = Cython.__file__
msg = 'Building NumPy requires Cython >= {}, found {} at {}'
msg = msg.format(required_version, cython_version, cython_path)
raise RuntimeError(msg)
# Process files
cwd = os.path.abspath(os.path.dirname(__file__))
print("Cythonizing sources")
for d in ('random', ):
p = subprocess.call([
sys.executable,
os.path.join(cwd, 'tools', 'cythonize.py'), 'numpy/{0}'.format(d)
],
cwd=cwd)
if p != 0:
raise RuntimeError("Running cythonize failed!")
except ImportError:
numba = None
try:
import cython
from Cython.Compiler.Version import version as cython_version
except ImportError:
cython = None
else:
from numpy.compat import _pep440
# Cython 0.29.24 is required for Python 3.10 and there are
# other fixes in the 0.29 series that are needed even for earlier
# Python versions.
# Note: keep in sync with the one in pyproject.toml
required_version = '0.29.24'
if _pep440.parse(cython_version) < _pep440.Version(required_version):
# too old or wrong cython, skip the test
cython = None
@pytest.mark.skipif(cython is None, reason="requires cython")
@pytest.mark.slow
def test_cython(tmp_path):
srcdir = os.path.join(os.path.dirname(__file__), '..')
shutil.copytree(srcdir, tmp_path / 'random')
# build the examples and "install" them into a temporary directory
build_dir = tmp_path / 'random' / '_examples' / 'cython'
subprocess.check_call(
[
sys.executable,
'setup.py',