pyalpm: New package

Python wrapper for libalpm and python implementation of
pacman (pycman). Backported to Python 2.

python-pyalpm/0001-Python2-compat-Module-initialization.patch

@@ -0,0 +1,108 @@
+From a5e026eb17fd6c32ecb92aa40b71b5c6900fdabe Mon Sep 17 00:00:00 2001
+From: Ray Donnelly <mingw.android@gmail.com>
+Date: Fri, 11 Mar 2016 11:55:59 +0000
+Subject: [PATCH 1/5] Python2 compat: Module initialization
+
+From https://docs.python.org/3/howto/cporting.html
+---
+ src/pyalpm.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
+ 1 file changed, 57 insertions(+), 5 deletions(-)
+
+diff --git src/pyalpm.c src/pyalpm.c
+index 507f564..47c48cc 100644
+--- src/pyalpm.c
++++ src/pyalpm.c
+@@ -78,6 +78,28 @@ static PyObject *pyalpm_vercmp(PyObject *self, PyObject *args) {
+   return PyLong_FromLong(result);
+ }
+ 
++/*
++   https://docs.python.org/3/howto/cporting.html
++*/
++
++struct module_state {
++    PyObject *error;
++};
++
++#if PY_MAJOR_VERSION >= 3
++#define GETSTATE(m) ((struct module_state*)PyModule_GetState(m))
++#else
++#define GETSTATE(m) (&_state)
++static struct module_state _state;
++#endif
++
++static PyObject *
++error_out(PyObject *m) {
++    struct module_state *st = GETSTATE(m);
++    PyErr_SetString(st->error, "something bad happened");
++    return NULL;
++}
++
+ static PyMethodDef methods[] = {
+   {"version", version_alpm, METH_NOARGS, "returns pyalpm version."},
+   {"alpmversion", alpmversion_alpm, METH_NOARGS, "returns alpm version."},
+@@ -101,26 +123,56 @@ static PyMethodDef methods[] = {
+   {NULL, NULL, 0, NULL}
+ };
+ 
++#if PY_MAJOR_VERSION >= 3
++
++static int pyalpm_traverse(PyObject *m, visitproc visit, void *arg) {
++    Py_VISIT(GETSTATE(m)->error);
++    return 0;
++}
++
++static int pyalpm_clear(PyObject *m) {
++    Py_CLEAR(GETSTATE(m)->error);
++    return 0;
++}
++
+ static struct PyModuleDef pyalpm_def = {
+   PyModuleDef_HEAD_INIT,
+   "alpm",
+   "This module wraps the libalpm library",
+-  -1,
++  sizeof(struct module_state),
+   methods,
+-  NULL, NULL, NULL, NULL,
++  NULL,
++  pyalpm_traverse,
++  pyalpm_clear,
++  NULL,
+ };
+ 
+-PyMODINIT_FUNC PyInit_pyalpm(void)
+-{
+-  PyObject* m = PyModule_Create(&pyalpm_def);
++#define INITERROR return NULL
+ 
++PyMODINIT_FUNC
++PyInit_pyalpm(void)
++
++#else
++#define INITERROR return
++
++void
++initpyalpm(void)
++#endif
++{
++#if PY_MAJOR_VERSION >= 3
++  PyObject *m = PyModule_Create(&pyalpm_def);
++#else
++  PyObject *m = Py_InitModule("pyalpm", methods);
++#endif
+   init_pyalpm_error(m);
+   init_pyalpm_handle(m);
+   init_pyalpm_package(m);
+   init_pyalpm_db(m);
+   init_pyalpm_transaction(m);
+ 
++#if PY_MAJOR_VERSION >= 3
+   return m;
++#endif
+ }
+ 
+ /* vim: set ts=2 sw=2 et: */
+-- 
+2.7.1
+