Issue #13087: BufferedReader.seek() now always raises UnsupportedOperation

if the underlying raw stream is unseekable, even if the seek could be
satisfied using the internal buffer.  Patch by John O'Connor.
This commit is contained in:
Antoine Pitrou 2011-10-04 12:26:20 +02:00
parent 94190bb6e7
commit 1e44fecc52
3 changed files with 15 additions and 0 deletions

View file

@ -1086,6 +1086,9 @@ buffered_seek(buffered *self, PyObject *args)
CHECK_CLOSED(self, "seek of closed file")
if (_PyIOBase_check_seekable(self->raw, Py_True) == NULL)
return NULL;
target = PyNumber_AsOff_t(targetobj, PyExc_ValueError);
if (target == -1 && PyErr_Occurred())
return NULL;