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feat: Enable HTTP/2 by default in httpx client #3477

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feat: Enable HTTP/2 by default in httpx client #3477

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d7db638
Enable HTTP/2 by default in httpx client
KrisTHL181 Jul 8, 2026
6df4568
feat: use _HTTP2_AVAILABLE flag instead of hardcoded True
KrisTHL181 Jul 8, 2026
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1 change: 1 addition & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ Repository = "https://github.com/openai/openai-python"

[project.optional-dependencies]
aiohttp = ["aiohttp", "httpx_aiohttp>=0.1.9"]
http2 = ["httpx[http2]"]
realtime = ["websockets >= 13, < 16"]
datalib = ["numpy >= 1", "pandas >= 1.2.3", "pandas-stubs >= 1.1.0.11"]
voice_helpers = ["sounddevice>=0.5.1", "numpy>=2.0.2"]
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9 changes: 9 additions & 0 deletions src/openai/_base_client.py
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Expand Up @@ -39,6 +39,13 @@
from httpx import URL
from pydantic import PrivateAttr

try:
import h2 # noqa: F401

_HTTP2_AVAILABLE = True
except ImportError:
_HTTP2_AVAILABLE = False

from . import _exceptions
from ._qs import Querystring
from ._files import to_httpx_files, async_to_httpx_files
Expand Down Expand Up @@ -836,6 +843,7 @@ def __init__(self, **kwargs: Any) -> None:
kwargs.setdefault("timeout", DEFAULT_TIMEOUT)
kwargs.setdefault("limits", DEFAULT_CONNECTION_LIMITS)
kwargs.setdefault("follow_redirects", True)
kwargs.setdefault("http2", _HTTP2_AVAILABLE)
super().__init__(**kwargs)


Expand Down Expand Up @@ -1423,6 +1431,7 @@ def __init__(self, **kwargs: Any) -> None:
kwargs.setdefault("timeout", DEFAULT_TIMEOUT)
kwargs.setdefault("limits", DEFAULT_CONNECTION_LIMITS)
kwargs.setdefault("follow_redirects", True)
kwargs.setdefault("http2", _HTTP2_AVAILABLE)
super().__init__(**kwargs)


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