Added automatic conversion of UUIDs to strings.

.gitignore

@@ -19,3 +19,4 @@ htmlcov/
 out/
 parts/
 tmp/
+env/

CHANGES.txt

@@ -5,6 +5,7 @@ Changes for crate
 Unreleased
 ==========
 
+- Added automatic conversion of UUIDs to strings.
 
 2023/07/17 0.33.0
 =================

src/crate/client/http.py

@@ -35,6 +35,8 @@
 from time import time
 from datetime import datetime, date, timezone
 from decimal import Decimal
+from uuid import UUID
+
 from urllib3 import connection_from_url
 from urllib3.connection import HTTPConnection
 from urllib3.exceptions import (
@@ -88,6 +90,8 @@ class CrateJsonEncoder(json.JSONEncoder):
     def default(self, o):
         if isinstance(o, Decimal):
             return str(o)
+        if isinstance(o, UUID):
+            return str(o)
         if isinstance(o, datetime):
             if o.tzinfo is not None:
                 delta = o - self.epoch_aware

src/crate/client/test_http.py

@@ -35,9 +35,13 @@
 from threading import Thread, Event
 from decimal import Decimal
 import datetime as dt
+from uuid import UUID
+
 import urllib3.exceptions
 from base64 import b64decode
 from urllib.parse import urlparse, parse_qs
+
+import uuid
 from setuptools.ssl_support import find_ca_bundle
 
 from .http import Client, CrateJsonEncoder, _get_socket_opts, _remove_certs_for_non_https
@@ -287,6 +291,18 @@ def test_socket_options_contain_keepalive(self):
         )
         client.close()
 
+    @patch(REQUEST, autospec=True)
+    def test_uuid_serialization(self, request):
+        client = Client(servers="localhost:4200")
+        request.return_value = fake_response(200)
+
+        uid = uuid.uuid4()
+        client.sql('insert into my_table (str_col) values (?)', (uid,))
+
+        data = json.loads(request.call_args[1]['data'])
+        self.assertEqual(data['args'], [str(uid)])
+        client.close()
+
 
 @patch(REQUEST, fail_sometimes)
 class ThreadSafeHttpClientTest(TestCase):