MNT: Drop cython/numpy build requirements

Author: effigies

Dockerfile

@@ -11,7 +11,6 @@ RUN apt-get update && \
                     bzip2 \
                     ca-certificates \
                     xvfb \
-                    cython3 \
                     build-essential \
                     autoconf \
                     libtool \

pyproject.toml

@@ -1,2 +1,2 @@
 [build-system]
-requires = ["setuptools >= 40.8.0", "wheel", "numpy", "cython"]
+requires = ["setuptools >= 40.8.0", "wheel"]

setup.py

@@ -3,32 +3,21 @@
 """ fmriprep setup script """
 import sys
 from setuptools import setup
-from setuptools.extension import Extension
 import versioneer
 
 
 # Give setuptools a hint to complain if it's too old a version
-# 30.3.0 allows us to put most metadata in setup.cfg
+# 40.8.0 allows us to put most metadata in setup.cfg
 # Should match pyproject.toml
-# Not going to help us much without numpy or new pip, but gives us a shot
-SETUP_REQUIRES = ['setuptools >= 40.8', 'numpy', 'cython']
+SETUP_REQUIRES = ["setuptools >= 40.8"]
 # This enables setuptools to install wheel on-the-fly
-SETUP_REQUIRES += ['wheel'] if 'bdist_wheel' in sys.argv else []
+SETUP_REQUIRES += ["wheel"] if "bdist_wheel" in sys.argv else []
 
 
-if __name__ == '__main__':
-    from numpy import get_include
-
-    extensions = [Extension(
-        "fmriprep.utils.maths",
-        ["fmriprep/utils/maths.pyx"],
-        include_dirs=[get_include(), "/usr/local/include/"],
-        library_dirs=["/usr/lib/"]),
-    ]
-
-    setup(name='fmriprep',
-          version=versioneer.get_version(),
-          cmdclass=versioneer.get_cmdclass(),
-          setup_requires=SETUP_REQUIRES,
-          ext_modules=extensions,
-          )
+if __name__ == "__main__":
+    setup(
+        name="fmriprep",
+        version=versioneer.get_version(),
+        cmdclass=versioneer.get_cmdclass(),
+        setup_requires=SETUP_REQUIRES,
+    )