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Let Client take StdioServerParameters directly (#3321)

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Max 2026-08-17 14:31:21 +01:00 • committed by GitHub
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8
tests/docs_src/test_client_transports.py
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@ -6,7 +6,7 @@ import pytest
from docs_src.client_transports import tutorial001, tutorial004
from mcp import Client
from mcp.client.stdio import get_default_environment, stdio_client
from mcp.client.stdio import get_default_environment
from mcp.client.streamable_http import streamable_http_client
# See test_index.py for why this is a per-module mark and not a conftest hook.
@ -41,9 +41,9 @@ async def test_streamable_http_configuration_lives_on_the_httpx_client() -> None
assert list(inspect.signature(streamable_http_client).parameters) == ["url", "http_client", "terminate_on_close"]
async def test_stdio_parameters_are_wrapped_by_stdio_client() -> None:
"""tutorial004: `stdio_client(params)` is the transport, and `Client` takes it like any other."""
client = Client(stdio_client(tutorial004.server))
async def test_stdio_parameters_go_straight_to_client() -> None:
"""tutorial004: `Client` takes the `StdioServerParameters` directly, and nothing is spawned until you enter it."""
client = Client(tutorial004.server)
with pytest.raises(RuntimeError, match="Client must be used within an async context manager"):
client.session