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diff --git a/contrib/tools/python3/Modules/_sqlite/connection.h b/contrib/tools/python3/Modules/_sqlite/connection.h
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+/* connection.h - definitions for the connection type
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_CONNECTION_H
+#define PYSQLITE_CONNECTION_H
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
+#include "pythread.h"
+#include "structmember.h"
+
+#include "module.h"
+
+#include "sqlite3.h"
+
+typedef struct _callback_context
+{
+    PyObject *callable;
+    PyObject *module;
+    pysqlite_state *state;
+} callback_context;
+
+enum autocommit_mode {
+    AUTOCOMMIT_LEGACY = LEGACY_TRANSACTION_CONTROL,
+    AUTOCOMMIT_ENABLED = 1,
+    AUTOCOMMIT_DISABLED = 0,
+};
+
+typedef struct
+{
+    PyObject_HEAD
+    sqlite3 *db;
+    pysqlite_state *state;
+
+    /* the type detection mode. Only 0, PARSE_DECLTYPES, PARSE_COLNAMES or a
+     * bitwise combination thereof makes sense */
+    int detect_types;
+
+    /* NULL for autocommit, otherwise a string with the isolation level */
+    const char *isolation_level;
+    enum autocommit_mode autocommit;
+
+    /* 1 if a check should be performed for each API call if the connection is
+     * used from the same thread it was created in */
+    int check_same_thread;
+
+    int initialized;
+
+    /* thread identification of the thread the connection was created in */
+    unsigned long thread_ident;
+
+    PyObject *statement_cache;
+
+    /* Lists of weak references to cursors and blobs used within this connection */
+    PyObject *cursors;
+    PyObject *blobs;
+
+    /* Counters for how many cursors were created in the connection. May be
+     * reset to 0 at certain intervals */
+    int created_cursors;
+
+    PyObject* row_factory;
+
+    /* Determines how bytestrings from SQLite are converted to Python objects:
+     * - PyUnicode_Type:        Python Unicode objects are constructed from UTF-8 bytestrings
+     * - PyBytes_Type:          The bytestrings are returned as-is.
+     * - Any custom callable:   Any object returned from the callable called with the bytestring
+     *                          as single parameter.
+     */
+    PyObject* text_factory;
+
+    // Remember contexts used by the trace, progress, and authoriser callbacks
+    callback_context *trace_ctx;
+    callback_context *progress_ctx;
+    callback_context *authorizer_ctx;
+
+    /* Exception objects: borrowed refs. */
+    PyObject* Warning;
+    PyObject* Error;
+    PyObject* InterfaceError;
+    PyObject* DatabaseError;
+    PyObject* DataError;
+    PyObject* OperationalError;
+    PyObject* IntegrityError;
+    PyObject* InternalError;
+    PyObject* ProgrammingError;
+    PyObject* NotSupportedError;
+} pysqlite_Connection;
+
+int pysqlite_check_thread(pysqlite_Connection* self);
+int pysqlite_check_connection(pysqlite_Connection* con);
+
+int pysqlite_connection_setup_types(PyObject *module);
+
+#endif