From 206a3754466397baeb418e70be9d35b12cc4079f Mon Sep 17 00:00:00 2001 From: Adam Williamson Date: Wed, 4 Sep 2024 19:09:04 +0200 Subject: [PATCH] Fix build with Python 3.13+ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid using PyObject_AsReadBuffer, do what PyObject_AsReadBuffer does. Note that this is not safe, and it has never been safe, but the code does *exactly* what it used to do (at least on Python 3.8+). Fixes https://github.com/jnwatson/py-lmdb/issues/362 Co-Authored-By: Miro Hrončok --- lmdb/cpython.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/lmdb/cpython.c b/lmdb/cpython.c index 3030883..81fdb06 100644 --- a/lmdb/cpython.c +++ b/lmdb/cpython.c @@ -545,9 +545,21 @@ val_from_buffer(MDB_val *val, PyObject *buf) type_error("Won't implicitly convert Unicode to bytes; use .encode()"); return -1; } +#if PY_VERSION_HEX < 0x030d0000 return PyObject_AsReadBuffer(buf, (const void **) &val->mv_data, (Py_ssize_t *) &val->mv_size); +#else + Py_buffer view; + int ret; + ret = PyObject_GetBuffer(buf, &view, PyBUF_SIMPLE); + if(ret == 0) { + val->mv_data = view.buf; + val->mv_size = view.len; + PyBuffer_Release(&view); + } + return ret; +#endif } /* ------------------- */