[Python-checkins] [3.10] bpo-45581: Raise `MemoryError` in `sqlite3.connect` if SQLite signals memory error (GH-29171) (GH-29323)

[ambv]

https://github.com/python/cpython/commit/7e2c0a18b41cb906a354776e6ca52af81e39820f
commit: 7e2c0a18b41cb906a354776e6ca52af81e39820f
branch: 3.10
author: Łukasz Langa <lukasz at langa.pl>
committer: ambv <lukasz at langa.pl>
date: 2021-10-29T22:54:07+02:00
summary:

[3.10] bpo-45581: Raise `MemoryError` in `sqlite3.connect` if SQLite signals memory error (GH-29171) (GH-29323)

(cherry picked from commit e2e62b3808691e15fa44b883270023e42dcad958)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland at innova.no>

files:
A Misc/NEWS.d/next/Library/2021-10-22-21-57-02.bpo-45581.rlH6ay.rst
M Modules/_sqlite/connection.c

diff --git a/Misc/NEWS.d/next/Library/2021-10-22-21-57-02.bpo-45581.rlH6ay.rst b/Misc/NEWS.d/next/Library/2021-10-22-21-57-02.bpo-45581.rlH6ay.rst
new file mode 100644
index 0000000000000..13a3b237434eb
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-10-22-21-57-02.bpo-45581.rlH6ay.rst
@@ -0,0 +1,2 @@
+:meth:`sqlite3.connect` now correctly raises :exc:`MemoryError` if the
+underlying SQLite API signals memory error. Patch by Erlend E. Aasland.
diff --git a/Modules/_sqlite/connection.c b/Modules/_sqlite/connection.c
index 2cc5f53a30bc0..64610393ec1c3 100644
--- a/Modules/_sqlite/connection.c
+++ b/Modules/_sqlite/connection.c
@@ -113,6 +113,10 @@ pysqlite_connection_init(pysqlite_Connection *self, PyObject *args,
 
     Py_DECREF(database_obj);
 
+    if (self->db == NULL && rc == SQLITE_NOMEM) {
+        PyErr_NoMemory();
+        return -1;
+    }
     if (rc != SQLITE_OK) {
         _pysqlite_seterror(self->db, NULL);
         return -1;