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

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if the underlying raw stream is unseekable, even if the seek could be
satisfied using the internal buffer.  Patch by John OConnor.
This commit is contained in:
Antoine Pitrou 2011-10-04 12:28:52 +02:00
commit bf009f0bce
3 changed files with 15 additions and 0 deletions
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3
Modules/_io/bufferedio.c
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@ -1155,6 +1155,9 @@ 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;