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MAINT: be more tolerant of setuptools >= 60 #20985

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merged 1 commit into from Feb 3, 2022
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13 changes: 10 additions & 3 deletions setup.py
Expand Up @@ -81,9 +81,16 @@
import numpy.distutils.command.sdist
import setuptools
if int(setuptools.__version__.split('.')[0]) >= 60:
raise RuntimeError(
"Setuptools version is '{}', version < '60.0.0' is required. "
"See pyproject.toml".format(setuptools.__version__))
# setuptools >= 60 switches to vendored distutils by default; this
# may break the numpy build, so make sure the stdlib version is used
try:
setuptools_use_distutils = os.environ['SETUPTOOLS_USE_DISTUTILS']
except KeyError:
os.environ['SETUPTOOLS_USE_DISTUTILS'] = "stdlib"
else:
if setuptools_use_distutils != "stdlib":
raise RuntimeError("setuptools versions >= '60.0.0' require "
"SETUPTOOLS_USE_DISTUTILS=stdlib in the environment")

# Initialize cmdclass from versioneer
from numpy.distutils.core import numpy_cmdclass
Expand Down