fix: syntax error in setup.py + modernize

MANIFEST.in

@@ -0,0 +1,6 @@
+include python/zfpy.pxd
+include python/zfpy.pyx
+recursive-include include *.h
+recursive-include src *.c *.h
+include LICENSE
+include pyproject.toml

pyproject.toml

@@ -0,0 +1,8 @@
+[build-system]
+requires = [
+    "setuptools",
+    "wheel",
+    "cython",
+    "oldest-supported-numpy; python_version<'3.9'",
+    'numpy; python_version>="3.9"',
+]

python/zfpy.pxd

@@ -1,3 +1,5 @@
+# cython: language_level=3
+
 import cython
 cimport libc.stdint as stdint
 from libc.stddef cimport ptrdiff_t

python/zfpy.pyx

@@ -1,3 +1,5 @@
+# cython: language_level=3
+
 import sys
 import operator
 import functools

setup.py

@@ -1,15 +1,48 @@
 from setuptools import setup, Extension
-import numpy as np
+
+class NumpyImport:
+  def __repr__(self):
+    import numpy as np
+
+    return np.get_include()
+
+  __fspath__ = __repr__
 
 setup(
     name="zfpy",
+    setup_requires=["numpy", "cython"],
     version="1.0.1",
     author="Peter Lindstrom, Danielle Asher",
     author_email="[email protected]",
     url="https://zfp.llnl.gov",
+    license="License :: OSI Approved :: BSD License",
     description="zfp compression in Python",
     long_description="zfp is a compressed format for representing multidimensional floating-point and integer arrays. zfp provides compressed-array classes that support high throughput read and write random access to individual array elements. zfp also supports serial and parallel compression of whole arrays using both lossless and lossy compression with error tolerances. zfp is primarily written in C and C++ but also includes Python and Fortran bindings.",
-    ext_modules=[Extension("zfpy", ["build/python/zfpy.c"],
-                           include_dirs=["include", np.get_include()],
-                           libraries=["zfp"], library_dirs=["build/lib64", "build/lib/Release"]), language_level = "3"]
+    ext_modules=[
+        Extension(
+            "zfpy", 
+            sources=["python/zfpy.pyx"],
+            include_dirs=["include", str(NumpyImport())],
+            libraries=["zfp"], 
+            library_dirs=["build/lib64", "build/lib/Release"],
+            language_level=3,
+            lanugage="c",
+        ),
+    ],
+    classifiers=[
+        "Intended Audience :: Developers",
+        "Development Status :: 4 - Beta",
+        "License :: OSI Approved :: BSD License",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Topic :: Scientific/Engineering :: Image Processing",
+        "Topic :: System :: Archiving :: Compression",
+        "Operating System :: POSIX",
+        "Operating System :: MacOS",
+        "Operating System :: Microsoft :: Windows :: Windows 10",
+    ],
 )