File python3-13.patch of Package python-psycopg2

diff --git a/psycopg/utils.c b/psycopg/utils.c
index 16be9062..1dfb87d0 100644
--- a/psycopg/utils.c
+++ b/psycopg/utils.c
@@ -392,7 +392,10 @@ psyco_set_error(PyObject *exc, cursorObject *curs, const char *msg)
 static int
 psyco_is_main_interp(void)
 {
-#if PY_VERSION_HEX >= 0x03080000
+#if PY_VERSION_HEX >= 0x030d0000
+    /* tested with Python 3.13.0a6 */
+    return PyInterpreterState_Get() == PyInterpreterState_Main();
+#elif PY_VERSION_HEX >= 0x03080000
     /* tested with Python 3.8.0a2 */
     return _PyInterpreterState_Get() == PyInterpreterState_Main();
 #else
diff --git a/setup.py b/setup.py
index 37f6b5c0..7d1e30ba 100644
--- a/setup.py
+++ b/setup.py
@@ -58,6 +58,7 @@ Programming Language :: Python :: 3.9
 Programming Language :: Python :: 3.10
 Programming Language :: Python :: 3.11
 Programming Language :: Python :: 3.12
+Programming Language :: Python :: 3.13
 Programming Language :: Python :: 3 :: Only
 Programming Language :: Python :: Implementation :: CPython
 Programming Language :: C
diff --git a/tests/test_ipaddress.py b/tests/test_ipaddress.py
index 4a2339ef..3f803690 100755
--- a/tests/test_ipaddress.py
+++ b/tests/test_ipaddress.py
@@ -18,6 +18,7 @@
 
 from . import testutils
 import unittest
+import sys
 
 import psycopg2
 import psycopg2.extras
@@ -68,7 +69,12 @@ class NetworkingTestCase(testutils.ConnectingTestCase):
         self.assertEquals(cur.fetchone()[0], '127.0.0.1/24')
 
         cur.execute("select %s", [ip.ip_interface('::ffff:102:300/128')])
-        self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
+
+        # The texual representation of addresses has changed in Python 3.13
+        if sys.version_info >= (3, 13):
+            self.assertEquals(cur.fetchone()[0], '::ffff:1.2.3.0/128')
+        else:
+            self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
 
     @testutils.skip_if_crdb("cidr")
     def test_cidr_cast(self):
@@ -109,7 +115,12 @@ class NetworkingTestCase(testutils.ConnectingTestCase):
         self.assertEquals(cur.fetchone()[0], '127.0.0.0/24')
 
         cur.execute("select %s", [ip.ip_network('::ffff:102:300/128')])
-        self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
+
+        # The texual representation of addresses has changed in Python 3.13
+        if sys.version_info >= (3, 13):
+            self.assertEquals(cur.fetchone()[0], '::ffff:1.2.3.0/128')
+        else:
+            self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
 
 
 def test_suite():
diff --git a/tox.ini b/tox.ini
index 52ed80e3..ce450d3d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = {3.7,3.8,3.9,3.10,3.11,3.12}
+envlist = {3.7,3.8,3.9,3.10,3.11,3.12,3.13}
 
 [testenv]
 commands = make check