diff options
Diffstat (limited to 'python/cache.cc')
| -rw-r--r-- | python/cache.cc | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/python/cache.cc b/python/cache.cc index fe6e8b68..5743d9df 100644 --- a/python/cache.cc +++ b/python/cache.cc @@ -253,6 +253,16 @@ static PyObject *CacheMapOp(PyObject *Self,PyObject *Arg) return CppPyObject_NEW<pkgCache::PkgIterator>(Self,&PyPackage_Type,Pkg); } +// Check whether the cache contains a package with a given name. +static int CacheContains(PyObject *Self,PyObject *Arg) +{ + // Get the name of the package, unicode and normal strings. + const char *Name = PyObject_AsString(Arg); + if (Name == NULL) + return 0; + return (GetCpp<pkgCache *>(Self)->FindPkg(Name).end() == false); +} + static PyObject *PkgCacheNew(PyTypeObject *type,PyObject *Args,PyObject *kwds) { PyObject *pyCallbackInst = 0; @@ -305,14 +315,21 @@ static PyObject *PkgCacheNew(PyTypeObject *type,PyObject *Args,PyObject *kwds) return CacheObj; } +static Py_ssize_t CacheMapLen(PyObject *Self) +{ + return GetCpp<pkgCache*>(Self)->HeaderP->PackageCount; +} + static char *doc_PkgCache = "Cache([progress]) -> Cache() object.\n\n" "The cache provides access to the packages and other stuff.\n\n" "The optional parameter *progress* can be used to specify an \n" "apt.progress.OpProgress() object (or similar) which displays\n" - "the opening progress.\n\n" - "If not specified, the progress is displayed in simple text form."; - -static PyMappingMethods CacheMap = {0,CacheMapOp,0}; + "the opening progress. If not specified, the progress is\n" + "displayed in simple text form.\n\n" + "The cache can be used like a mapping of package names to Package\n" + "objects."; +static PySequenceMethods CacheSeq = {0,0,0,0,0,0,0,CacheContains,0,0}; +static PyMappingMethods CacheMap = {CacheMapLen,CacheMapOp,0}; PyTypeObject PyCache_Type = { PyVarObject_HEAD_INIT(&PyType_Type, 0) @@ -327,7 +344,7 @@ PyTypeObject PyCache_Type = 0, // tp_compare 0, // tp_repr 0, // tp_as_number - 0, // tp_as_sequence + &CacheSeq, // tp_as_sequence &CacheMap, // tp_as_mapping 0, // tp_hash 0, // tp_call |