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.

1 files changed, 0 insertions, 1 deletions

diff --git a/Modules/_bytesio.c b/Modules/_bytesio.c
index d342838..bbbb156 100644
--- a/Modules/_bytesio.c
+++ b/Modules/_bytesio.c
@@ -445,7 +445,6 @@ bytesio_truncate(BytesIOObject *self, PyObject *args)
         if (resize_buffer(self, size) < 0)
             return NULL;
     }
-    self->pos = size;
 
     return PyInt_FromSsize_t(size);
 }