FIX: Fix use of typing-extensions

Author: nmacholl

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.68.2 - TBD
+
+#### Bug fixes
+- Fix use of `Self` in `GatewayControl.parse()`
+
 ## 0.68.1 - 2025-12-16
 
 #### Enhancements

databento/live/gateway.py

@@ -5,11 +5,11 @@
 from io import BytesIO
 from operator import attrgetter
 from typing import SupportsBytes
+from typing import TypeVar
 
 from databento_dbn import Encoding
 from databento_dbn import Schema
 from databento_dbn import SType
-from typing_extensions import Self
 
 from databento.common.publishers import Dataset
 from databento.common.system import USER_AGENT
@@ -24,8 +24,10 @@ class GatewayControl(SupportsBytes):
     Base class for gateway control messages.
     """
 
+    GC = TypeVar("GC", bound="GatewayControl")
+
     @classmethod
-    def parse(cls: type[Self], line: str | bytes) -> Self:
+    def parse(cls: type[GC], line: str | bytes) -> GC:
         """
         Parse a `GatewayControl` message from a string.
 

pyproject.toml

@@ -81,4 +81,3 @@ asyncio_mode = "auto"
 
 [tool.ruff]
 extend = "../ruff.toml"
-target-version = "py310"