Update psycopg2 to psycopg3

- https://www.psycopg.org/psycopg3/docs/basic/from_pg2.html
- https://docs.djangoproject.com/en/dev/releases/4.2/#psycopg-3-support

config/settings/base.py

@@ -66,7 +66,7 @@
     "default": env.db("DATABASE_URL"),
 }
 DATABASES["default"]["ATOMIC_REQUESTS"] = False
-DATABASES["default"]["ENGINE"] = "django_db_geventpool.backends.postgresql_psycopg2"
+DATABASES["default"]["ENGINE"] = "django_db_geventpool.backends.postgresql_psycopg3"
 DATABASES["default"]["CONN_MAX_AGE"] = 0
 DB_MAX_CONNS = env.int("DB_MAX_CONNS", default=50)
 DATABASES["default"]["OPTIONS"] = {

gunicorn_custom_workers.py

@@ -1,19 +1,12 @@
 import gevent
 from gunicorn.workers.ggevent import GeventWorker
-from psycogreen.gevent import patch_psycopg
 
 
 class MyGeventWorker(GeventWorker):
-    def patch_psycopg2(self):
-        patch_psycopg()
-        self.log.info("Patched Psycopg2 for gevent")
-
-    def patch(self):
-        super().patch()
-        self.log.info("Patched all for gevent")
-        self.patch_psycopg2()
-
     def handle_request(self, listener_name, req, sock, addr):
+        """
+        Add timeout for Gunicorn requests
+        """
         try:
             with gevent.Timeout(self.cfg.timeout):
                 super().handle_request(listener_name, req, sock, addr)

requirements.txt

@@ -30,7 +30,7 @@ packaging>=21.0
 pika==1.3.2
 pillow==11.0.0
 psycogreen==1.0.2
-psycopg2==2.9.10
+psycopg[binary]==3.2.3
 redis==5.2.1
 requests==2.32.3
 safe-eth-py[django]==6.1.0