Import from scikit-build-sample-projects

Author: thewtex

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.4.0)
+
+project(hello)
+
+find_package(PythonExtensions REQUIRED)
+
+add_library(_hello MODULE hello/_hello.cxx)
+python_extension_module(_hello)
+install(TARGETS _hello LIBRARY DESTINATION hello)

hello/__init__.py

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+
+// Python includes
+#include <Python.h>
+
+// STD includes
+#include <stdio.h>
+
+//-----------------------------------------------------------------------------
+static PyObject *hello_example(PyObject *self, PyObject *args)
+{
+  // Unpack a string from the arguments
+  const char *strArg;
+  if (!PyArg_ParseTuple(args, "s", &strArg))
+    return NULL;
+
+  // Print message and return None
+  PySys_WriteStdout("Hello, %s!)\n", strArg);
+  Py_RETURN_NONE;
+}
+
+//-----------------------------------------------------------------------------
+static PyObject *elevation_example(PyObject *self, PyObject *args)
+{
+  // Return an integer
+  return PyLong_FromLong(21463L);
+}
+
+//-----------------------------------------------------------------------------
+static PyMethodDef hello_methods[] = {
+  {
+    "hello",
+    hello_example,
+    METH_VARARGS,
+    "Prints back 'Hello <param>', for example example: hello.hello('you')"
+  },
+
+  {
+    "elevation",
+    elevation_example,
+    METH_VARARGS,
+    "Returns elevation of Nevado Sajama."
+  },
+  {NULL, NULL, 0, NULL}        /* Sentinel */
+};
+
+//-----------------------------------------------------------------------------
+#if PY_MAJOR_VERSION < 3
+PyMODINIT_FUNC init_hello(void)
+{
+  (void) Py_InitModule("_hello", hello_methods);
+}
+#else /* PY_MAJOR_VERSION >= 3 */
+static struct PyModuleDef hello_module_def = {
+  PyModuleDef_HEAD_INIT,
+  "_hello",
+  "Internal \"_hello\" module",
+  -1,
+  hello_methods
+};
+
+PyMODINIT_FUNC PyInit__hello(void)
+{
+  return PyModule_Create(&hello_module_def);
+}
+#endif /* PY_MAJOR_VERSION >= 3 */

hello/_hello.cxx

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+import sys
+
+from skbuild import setup
+
+# Require pytest-runner only when running tests
+pytest_runner = (['pytest-runner>=2.0,<3dev']
+                 if any(arg in sys.argv for arg in ('pytest', 'test'))
+                 else [])
+
+setup_requires = pytest_runner
+
+setup(
+    name="hello-cpp",
+    version="1.2.3",
+    description="a minimal example package (cpp version)",
+    author='The scikit-build team',
+    license="MIT",
+    packages=['hello'],
+    tests_require=['pytest'],
+    setup_requires=setup_requires
+)

setup.py

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+import hello
+
+
+def test_hello(capfd):
+    hello.hello("World")
+    captured = capfd.readouterr()
+    assert captured.out == "Hello, World!"
+
+
+def test_elevation():
+    assert hello.elevation() == 21463