bpo-40810: Require SQLite 3.7.15

Remove code required to support SQLite pre 3.7.15.

Doc/library/sqlite3.rst

@@ -19,7 +19,7 @@ PostgreSQL or Oracle.
 
 The sqlite3 module was written by Gerhard Häring.  It provides a SQL interface
 compliant with the DB-API 2.0 specification described by :pep:`249`, and
-requires SQLite 3.7.3 or newer.
+requires SQLite 3.7.15 or newer.
 
 To use the module, you must first create a :class:`Connection` object that
 represents the database.  Here the data will be stored in the

Doc/whatsnew/3.10.rst

@@ -577,13 +577,12 @@ CPython bytecode changes
 Build Changes
 =============
 
-
 * The C99 functions :c:func:`snprintf` and :c:func:`vsnprintf` are now required
   to build Python.
   (Contributed by Victor Stinner in :issue:`36020`.)
 
-* :mod:`sqlite3` requires SQLite 3.7.3 or higher.
+* :mod:`sqlite3` requires SQLite 3.7.15 or higher. (Contributed by Sergey Fedoseev
-  (Contributed by Sergey Fedoseev and Erlend E. Aasland :issue:`40744`.)
+  and Erlend E. Aasland :issue:`40744` and :issue:`40810`.)
 
 * The :mod:`atexit` module must now always be built as a built-in module.
   (Contributed by Victor Stinner in :issue:`42639`.)

Lib/sqlite3/test/dbapi.py

@@ -172,10 +172,6 @@ class ConnectionTests(unittest.TestCase):
             cx.execute('create table test(id integer)')
 
     def CheckOpenUri(self):
-        if sqlite.sqlite_version_info < (3, 7, 7):
-            with self.assertRaises(sqlite.NotSupportedError):
-                sqlite.connect(':memory:', uri=True)
-            return
         self.addCleanup(unlink, TESTFN)
         with sqlite.connect(TESTFN) as cx:
             cx.execute('create table test(id integer)')

Lib/sqlite3/test/hooks.py

@@ -260,14 +260,6 @@ class TraceCallbackTests(unittest.TestCase):
         cur.execute(queries[0])
         con2.execute("create table bar(x)")
         cur.execute(queries[1])
-
-        # Extract from SQLite 3.7.15 changelog:
-        # Avoid invoking the sqlite3_trace() callback multiple times when a
-        # statement is automatically reprepared due to SQLITE_SCHEMA errors.
-        #
-        # See bpo-40810
-        if sqlite.sqlite_version_info < (3, 7, 15):
-            queries.append(queries[-1])
         self.assertEqual(traced_statements, queries)
 
 

Misc/NEWS.d/next/Library/2021-01-05-00-52-30.bpo-40810.JxQqPe.rst

@@ -0,0 +1 @@
+Require SQLite 3.7.15 or newer. Patch by Erlend E. Aasland.

Modules/_sqlite/connection.c

@@ -233,7 +233,7 @@ void pysqlite_connection_dealloc(pysqlite_Connection* self)
 
     /* Clean up if user has not called .close() explicitly. */
     if (self->db) {
-        SQLITE3_CLOSE(self->db);
+        sqlite3_close_v2(self->db);
     }
 
     Py_XDECREF(self->isolation_level);
@@ -338,7 +338,7 @@ pysqlite_connection_close_impl(pysqlite_Connection *self)
     pysqlite_do_all_statements(self, ACTION_FINALIZE, 1);
 
     if (self->db) {
-        rc = SQLITE3_CLOSE(self->db);
+        rc = sqlite3_close_v2(self->db);
 
         if (rc != SQLITE_OK) {
             _pysqlite_seterror(self->db, NULL);
@@ -1687,33 +1687,7 @@ pysqlite_connection_backup_impl(pysqlite_Connection *self,
         if (rc == SQLITE_NOMEM) {
             (void)PyErr_NoMemory();
         } else {
-#if SQLITE_VERSION_NUMBER > 3007015
             PyErr_SetString(pysqlite_OperationalError, sqlite3_errstr(rc));
-#else
-            switch (rc) {
-                case SQLITE_ERROR:
-                    /* Description of SQLITE_ERROR in SQLite 3.7.14 and older
-                       releases. */
-                    PyErr_SetString(pysqlite_OperationalError,
-                                    "SQL logic error or missing database");
-                    break;
-                case SQLITE_READONLY:
-                    PyErr_SetString(pysqlite_OperationalError,
-                                    "attempt to write a readonly database");
-                    break;
-                case SQLITE_BUSY:
-                    PyErr_SetString(pysqlite_OperationalError, "database is locked");
-                    break;
-                case SQLITE_LOCKED:
-                    PyErr_SetString(pysqlite_OperationalError,
-                                    "database table is locked");
-                    break;
-                default:
-                    PyErr_Format(pysqlite_OperationalError,
-                                 "unrecognized error code: %d", rc);
-                    break;
-            }
-#endif
         }
     }
 

Modules/_sqlite/module.c

@@ -29,8 +29,8 @@
 #include "microprotocols.h"
 #include "row.h"
 
-#if SQLITE_VERSION_NUMBER < 3007003
+#if SQLITE_VERSION_NUMBER < 3007015
-#error "SQLite 3.7.3 or higher required"
+#error "SQLite 3.7.15 or higher required"
 #endif
 
 #include "clinic/module.c.h"
@@ -365,8 +365,8 @@ PyMODINIT_FUNC PyInit__sqlite3(void)
 {
     PyObject *module;
 
-    if (sqlite3_libversion_number() < 3007003) {
+    if (sqlite3_libversion_number() < 3007015) {
-        PyErr_SetString(PyExc_ImportError, MODULE_NAME ": SQLite 3.7.3 or higher required");
+        PyErr_SetString(PyExc_ImportError, MODULE_NAME ": SQLite 3.7.15 or higher required");
         return NULL;
     }
 

Modules/_sqlite/util.h

@@ -39,10 +39,4 @@ int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st);
 
 sqlite_int64 _pysqlite_long_as_int64(PyObject * value);
 
-#if SQLITE_VERSION_NUMBER >= 3007014
-#define SQLITE3_CLOSE sqlite3_close_v2
-#else
-#define SQLITE3_CLOSE sqlite3_close
-#endif
-
 #endif

setup.py

@@ -1444,8 +1444,7 @@ class PyBuildExt(build_ext):
                              ]
         if CROSS_COMPILING:
             sqlite_inc_paths = []
-        # We need to find >= sqlite version 3.7.3, for sqlite3_create_function_v2()
+        MIN_SQLITE_VERSION_NUMBER = (3, 7, 15)  # Issue 40810
-        MIN_SQLITE_VERSION_NUMBER = (3, 7, 3)
         MIN_SQLITE_VERSION = ".".join([str(x)
                                     for x in MIN_SQLITE_VERSION_NUMBER])