add hg and python

1 files changed, 65 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Demo/embed/demo.c b/sys/src/cmd/python/Demo/embed/demo.c
new file mode 100644
index 000000000..6005f1396
--- /dev/null
+++ b/sys/src/cmd/python/Demo/embed/demo.c
@@ -0,0 +1,65 @@
+/* Example of embedding Python in another program */
+
+#include "Python.h"
+
+void initxyzzy(void); /* Forward */
+
+main(int argc, char **argv)
+{
+	/* Pass argv[0] to the Python interpreter */
+	Py_SetProgramName(argv[0]);
+
+	/* Initialize the Python interpreter.  Required. */
+	Py_Initialize();
+
+	/* Add a static module */
+	initxyzzy();
+
+	/* Define sys.argv.  It is up to the application if you
+	   want this; you can also let it undefined (since the Python 
+	   code is generally not a main program it has no business
+	   touching sys.argv...) */
+	PySys_SetArgv(argc, argv);
+
+	/* Do some application specific code */
+	printf("Hello, brave new world\n\n");
+
+	/* Execute some Python statements (in module __main__) */
+	PyRun_SimpleString("import sys\n");
+	PyRun_SimpleString("print sys.builtin_module_names\n");
+	PyRun_SimpleString("print sys.modules.keys()\n");
+	PyRun_SimpleString("print sys.executable\n");
+	PyRun_SimpleString("print sys.argv\n");
+
+	/* Note that you can call any public function of the Python
+	   interpreter here, e.g. call_object(). */
+
+	/* Some more application specific code */
+	printf("\nGoodbye, cruel world\n");
+
+	/* Exit, cleaning up the interpreter */
+	Py_Exit(0);
+	/*NOTREACHED*/
+}
+
+/* A static module */
+
+/* 'self' is not used */
+static PyObject *
+xyzzy_foo(PyObject *self, PyObject* args)
+{
+	return PyInt_FromLong(42L);
+}
+
+static PyMethodDef xyzzy_methods[] = {
+	{"foo",		xyzzy_foo,	METH_NOARGS,
+	 "Return the meaning of everything."},
+	{NULL,		NULL}		/* sentinel */
+};
+
+void
+initxyzzy(void)
+{
+	PyImport_AddModule("xyzzy");
+	Py_InitModule("xyzzy", xyzzy_methods);
+}