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  r77890 | antoine.pitrou | 2010-01-31 23:26:04 +0100 (dim., 31 janv. 2010) | 7 lines

  - Issue #6939: Fix file I/O objects in the `io` module to keep the original
    file position when calling `truncate()`.  It would previously change the
    file position to the given argument, which goes against the tradition of
    ftruncate() and other truncation APIs.  Patch by Pascal Chambon.
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This commit is contained in:
Antoine Pitrou 2010-01-31 22:47:27 +00:00
parent 9b661e6ef6
commit 905a2ffe3e
12 changed files with 97 additions and 47 deletions
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3
Modules/_io/bytesio.c
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@ -412,7 +412,7 @@ PyDoc_STRVAR(truncate_doc,
"truncate([size]) -> int. Truncate the file to at most size bytes.\n"
"\n"
"Size defaults to the current file position, as returned by tell().\n"
"Returns the new size. Imply an absolute seek to the position size.");
"The current file position is unchanged. Returns the new size.\n");
static PyObject *
bytesio_truncate(bytesio *self, PyObject *args)
@ -451,7 +451,6 @@ bytesio_truncate(bytesio *self, PyObject *args)
if (resize_buffer(self, size) < 0)
return NULL;
}
self->pos = size;
return PyLong_FromSsize_t(size);
}