Improve setup.py (#39)

Author: mathbunnyru

src/setup.py

@@ -9,29 +9,43 @@
 language = "c++"
 std = "c++17"
 
-default_compile_args = sysconfig.get_config_var("CFLAGS").split()
+# Handle case where CFLAGS might be None
+if args := sysconfig.get_config_var("CFLAGS"):
+    default_compile_args = args.split()
+else:
+    default_compile_args = []
+
 extra_compile_args = [f"-std={std}", "-Wall", "-Wextra", "-Werror", "-DNDEBUG", "-O3"]
 
 print(f"Default compile arguments: {default_compile_args}")
 print(f"Extra compile arguments: {extra_compile_args}")
 
 cpython_extension = Extension(
     "cpython_sieve",
-    sources=[THIS_DIR / "cpython_wrapper.cpp", THIS_DIR / "cpp_impl/sieve.cpp"],
+    sources=[
+        str(THIS_DIR / "cpython_wrapper.cpp"),
+        str(THIS_DIR / "cpp_impl/sieve.cpp"),
+    ],
     extra_compile_args=extra_compile_args,
     language=language,
+    include_dirs=[str(THIS_DIR / "cpp_impl")],
 )
 
 cython_extension = Extension(
     "cython_sieve",
-    sources=[THIS_DIR / "cython_wrapper/wrapper.pyx", THIS_DIR / "cpp_impl/sieve.cpp"],
+    sources=[
+        str(THIS_DIR / "cython_wrapper/wrapper.pyx"),
+        str(THIS_DIR / "cpp_impl/sieve.cpp"),
+    ],
     extra_compile_args=extra_compile_args,
     language=language,
+    include_dirs=[str(THIS_DIR / "cpp_impl")],
 )
 
-setup(
+_ = setup(
     name="cpp_python_extension",
-    version="1.0",
-    description="This is Example module written in C++",
+    version="1.0.0",
+    description="Example module written in C++ with Python bindings",
     ext_modules=cythonize([cython_extension]) + [cpython_extension],
+    zip_safe=False,
 )