style: Fix imports and line length formatting

Author: dsp-ant

examples/fastmcp/complex_inputs.py

@@ -4,8 +4,10 @@
 Demonstrates validation via pydantic with complex models.
 """
 
-from pydantic import BaseModel, Field
 from typing import Annotated
+
+from pydantic import BaseModel, Field
+
 from mcp.server.fastmcp import FastMCP
 
 mcp = FastMCP("Shrimp Tank")

examples/fastmcp/memory.py

@@ -6,7 +6,8 @@
 
 """
 Recursive memory system inspired by the human brain's clustering of memories.
-Uses OpenAI's 'text-embedding-3-small' model and pgvector for efficient similarity search.
+Uses OpenAI's 'text-embedding-3-small' model and pgvector for efficient
+similarity search.
 """
 
 import asyncio
@@ -111,7 +112,8 @@ async def save(self, deps: Deps):
             if self.id is None:
                 result = await conn.fetchrow(
                     """
-                    INSERT INTO memories (content, summary, importance, access_count, timestamp, embedding)
+                    INSERT INTO memories (content, summary, importance, access_count,
+                        timestamp, embedding)
                     VALUES ($1, $2, $3, $4, $5, $6)
                     RETURNING id
                     """,
@@ -336,7 +338,8 @@ async def initialize_database():
                     timestamp DOUBLE PRECISION NOT NULL,
                     embedding vector(1536) NOT NULL
                 );
-                CREATE INDEX IF NOT EXISTS idx_memories_embedding ON memories USING hnsw (embedding vector_l2_ops);
+                CREATE INDEX IF NOT EXISTS idx_memories_embedding ON memories
+                    USING hnsw (embedding vector_l2_ops);
             """)
     finally:
         await pool.close()

examples/fastmcp/readme-quickstart.py

@@ -1,6 +1,5 @@
 from mcp.server.fastmcp import FastMCP
 
-
 # Create an MCP server
 mcp = FastMCP("Demo")
 

examples/fastmcp/screenshot.py

@@ -5,10 +5,10 @@
 """
 
 import io
+
 from mcp.server.fastmcp import FastMCP
 from mcp.server.fastmcp.utilities.types import Image
 
-
 # Create server
 mcp = FastMCP("Screenshot Demo", dependencies=["pyautogui", "Pillow"])
 

examples/fastmcp/simple_echo.py

@@ -4,7 +4,6 @@
 
 from mcp.server.fastmcp import FastMCP
 
-
 # Create server
 mcp = FastMCP("Echo Server")
 

examples/fastmcp/text_me.py

@@ -19,6 +19,7 @@
 """
 
 from typing import Annotated
+
 import httpx
 from pydantic import BeforeValidator
 from pydantic_settings import BaseSettings, SettingsConfigDict

examples/servers/simple-resource/mcp_simple_resource/server.py

@@ -1,8 +1,8 @@
 import anyio
 import click
 import mcp.types as types
-from pydantic import AnyUrl
 from mcp.server.lowlevel import Server
+from pydantic import AnyUrl
 
 SAMPLE_RESOURCES = {
     "greeting": "Hello! This is a sample text resource.",

pyproject.toml

@@ -47,7 +47,6 @@ dev-dependencies = [
     "trio>=0.26.2",
     "pytest-flakefinder>=1.1.0",
     "pytest-xdist>=3.6.1",
-    "pytest-asyncio>=0.24.0",
 ]
 
 [build-system]

src/mcp/cli/__init__.py

@@ -2,6 +2,5 @@
 
 from .cli import app
 
-
 if __name__ == "__main__":
     app()

src/mcp/cli/claude.py

@@ -48,8 +48,8 @@ def update_claude_config(
     config_dir = get_claude_config_path()
     if not config_dir:
         raise RuntimeError(
-            "Claude Desktop config directory not found. Please ensure Claude Desktop "
-            "is installed and has been run at least once to initialize its configuration."
+            "Claude Desktop config directory not found. Please ensure Claude Desktop"
+            " is installed and has been run at least once to initialize its config."
         )
 
     config_file = config_dir / "claude_desktop_config.json"

src/mcp/cli/cli.py

@@ -295,7 +295,8 @@ def run(
     """Run a MCP server.
 
     The server can be specified in two ways:
-    1. Module approach: server.py - runs the module directly, expecting a server.run() call
+    1. Module approach: server.py - runs the module directly, expecting a server.run()
+       call
     2. Import approach: server.py:app - imports and runs the specified server object
 
     Note: This command runs the server directly. You are responsible for ensuring
@@ -346,7 +347,8 @@ def install(
         typer.Option(
             "--name",
             "-n",
-            help="Custom name for the server (defaults to server's name attribute or file name)",
+            help="Custom name for the server (defaults to server's name attribute or"
+            " file name)",
         ),
     ] = None,
     with_editable: Annotated[
@@ -410,7 +412,8 @@ def install(
         logger.error("Claude app not found")
         sys.exit(1)
 
-    # Try to import server to get its name, but fall back to file name if dependencies missing
+    # Try to import server to get its name, but fall back to file name if dependencies
+    # missing
     name = server_name
     server = None
     if not name:
@@ -419,7 +422,8 @@ def install(
             name = server.name
         except (ImportError, ModuleNotFoundError) as e:
             logger.debug(
-                "Could not import server (likely missing dependencies), using file name",
+                "Could not import server (likely missing dependencies), using file"
+                " name",
                 extra={"error": str(e)},
             )
             name = file.stem

src/mcp/server/__init__.py

@@ -1,4 +1,4 @@
-from .lowlevel import Server, NotificationOptions
 from .fastmcp import FastMCP
+from .lowlevel import NotificationOptions, Server
 
 __all__ = ["Server", "FastMCP", "NotificationOptions"]

src/mcp/server/fastmcp/__init__.py

@@ -1,7 +1,8 @@
 """FastMCP - A more ergonomic interface for MCP servers."""
 
 from importlib.metadata import version
-from .server import FastMCP, Context
+
+from .server import Context, FastMCP
 from .utilities.types import Image
 
 __version__ = version("mcp")

src/mcp/server/fastmcp/prompts/base.py

@@ -1,13 +1,14 @@
 """Base classes for FastMCP prompts."""
 
-import json
-from typing import Any, Literal, Sequence, Awaitable
 import inspect
+import json
 from collections.abc import Callable
+from typing import Any, Awaitable, Literal, Sequence
 
-from pydantic import BaseModel, Field, TypeAdapter, validate_call
-from mcp.types import TextContent, ImageContent, EmbeddedResource
 import pydantic_core
+from pydantic import BaseModel, Field, TypeAdapter, validate_call
+
+from mcp.types import EmbeddedResource, ImageContent, TextContent
 
 CONTENT_TYPES = TextContent | ImageContent | EmbeddedResource
 

src/mcp/server/fastmcp/resources/__init__.py

@@ -1,14 +1,14 @@
 from .base import Resource
+from .resource_manager import ResourceManager
+from .templates import ResourceTemplate
 from .types import (
-    TextResource,
     BinaryResource,
-    FunctionResource,
+    DirectoryResource,
     FileResource,
+    FunctionResource,
     HttpResource,
-    DirectoryResource,
+    TextResource,
 )
-from .templates import ResourceTemplate
-from .resource_manager import ResourceManager
 
 __all__ = [
     "Resource",

src/mcp/server/fastmcp/resources/resource_manager.py

@@ -1,7 +1,6 @@
 """Resource manager functionality."""
 
 from typing import Callable
-from collections.abc import Iterable
 
 from pydantic import AnyUrl
 

src/mcp/server/fastmcp/resources/types.py

@@ -1,11 +1,11 @@
 """Concrete resource implementations."""
 
-import anyio
 import json
-from pathlib import Path
-from typing import Any, Callable
 from collections.abc import Callable
+from pathlib import Path
+from typing import Any
 
+import anyio
 import httpx
 import pydantic.json
 import pydantic_core

src/mcp/server/fastmcp/server.py

@@ -1,17 +1,25 @@
 """FastMCP - A more ergonomic interface for MCP servers."""
 
-import anyio
 import functools
 import inspect
 import json
 import re
 from itertools import chain
 from typing import Any, Callable, Literal, Sequence
-from collections.abc import Iterable
 
+import anyio
 import pydantic_core
-from pydantic import Field
 import uvicorn
+from pydantic import BaseModel, Field
+from pydantic.networks import AnyUrl
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+from mcp.server.fastmcp.exceptions import ResourceError
+from mcp.server.fastmcp.prompts import Prompt, PromptManager
+from mcp.server.fastmcp.resources import FunctionResource, Resource, ResourceManager
+from mcp.server.fastmcp.tools import ToolManager
+from mcp.server.fastmcp.utilities.logging import configure_logging, get_logger
+from mcp.server.fastmcp.utilities.types import Image
 from mcp.server.lowlevel import Server as MCPServer
 from mcp.server.sse import SseServerTransport
 from mcp.server.stdio import stdio_server
@@ -24,6 +32,8 @@
 )
 from mcp.types import (
     Prompt as MCPPrompt,
+)
+from mcp.types import (
     PromptArgument as MCPPromptArgument,
 )
 from mcp.types import (
@@ -35,16 +45,6 @@
 from mcp.types import (
     Tool as MCPTool,
 )
-from pydantic import BaseModel
-from pydantic.networks import AnyUrl
-from pydantic_settings import BaseSettings, SettingsConfigDict
-
-from mcp.server.fastmcp.exceptions import ResourceError
-from mcp.server.fastmcp.prompts import Prompt, PromptManager
-from mcp.server.fastmcp.resources import FunctionResource, Resource, ResourceManager
-from mcp.server.fastmcp.tools import ToolManager
-from mcp.server.fastmcp.utilities.logging import configure_logging, get_logger
-from mcp.server.fastmcp.utilities.types import Image
 
 logger = get_logger(__name__)
 
@@ -226,8 +226,9 @@ def add_tool(
     def tool(self, name: str | None = None, description: str | None = None) -> Callable:
         """Decorator to register a tool.
 
-        Tools can optionally request a Context object by adding a parameter with the Context type annotation.
-        The context provides access to MCP capabilities like logging, progress reporting, and resource access.
+        Tools can optionally request a Context object by adding a parameter with the
+        Context type annotation. The context provides access to MCP capabilities like
+        logging, progress reporting, and resource access.
 
         Args:
             name: Optional name for the tool (defaults to function name)

src/mcp/server/fastmcp/tools/base.py

@@ -1,12 +1,12 @@
-import mcp.server.fastmcp
-from mcp.server.fastmcp.exceptions import ToolError
-from mcp.server.fastmcp.utilities.func_metadata import func_metadata, FuncMetadata
-from pydantic import BaseModel, Field
-
-
 import inspect
 from typing import TYPE_CHECKING, Any, Callable
 
+from pydantic import BaseModel, Field
+
+import mcp.server.fastmcp
+from mcp.server.fastmcp.exceptions import ToolError
+from mcp.server.fastmcp.utilities.func_metadata import FuncMetadata, func_metadata
+
 if TYPE_CHECKING:
     from mcp.server.fastmcp.server import Context
 
@@ -19,7 +19,8 @@ class Tool(BaseModel):
     description: str = Field(description="Description of what the tool does")
     parameters: dict = Field(description="JSON schema for tool parameters")
     fn_metadata: FuncMetadata = Field(
-        description="Metadata about the function including a pydantic model for tool arguments"
+        description="Metadata about the function including a pydantic model for tool"
+        " arguments"
     )
     is_async: bool = Field(description="Whether the tool is async")
     context_kwarg: str | None = Field(

src/mcp/server/fastmcp/tools/tool_manager.py

@@ -1,9 +1,8 @@
-from mcp.server.fastmcp.exceptions import ToolError
-from mcp.server.fastmcp.tools.base import Tool
-
-from typing import Any, Callable, TYPE_CHECKING
 from collections.abc import Callable
+from typing import TYPE_CHECKING, Any
 
+from mcp.server.fastmcp.exceptions import ToolError
+from mcp.server.fastmcp.tools.base import Tool
 from mcp.server.fastmcp.utilities.logging import get_logger
 
 if TYPE_CHECKING:

src/mcp/server/fastmcp/utilities/func_metadata.py

@@ -1,21 +1,19 @@
 import inspect
-from collections.abc import Callable, Sequence, Awaitable
+import json
+from collections.abc import Awaitable, Callable, Sequence
 from typing import (
     Annotated,
     Any,
     ForwardRef,
 )
-from pydantic import Field
-from mcp.server.fastmcp.exceptions import InvalidSignature
+
+from pydantic import BaseModel, ConfigDict, Field, WithJsonSchema, create_model
 from pydantic._internal._typing_extra import eval_type_backport
-import json
-from pydantic import BaseModel
 from pydantic.fields import FieldInfo
-from pydantic import ConfigDict, create_model
-from pydantic import WithJsonSchema
 from pydantic_core import PydanticUndefined
-from mcp.server.fastmcp.utilities.logging import get_logger
 
+from mcp.server.fastmcp.exceptions import InvalidSignature
+from mcp.server.fastmcp.utilities.logging import get_logger
 
 logger = get_logger(__name__)
 
@@ -105,7 +103,8 @@ def pre_parse_json(self, data: dict[str, Any]) -> dict[str, Any]:
 
 
 def func_metadata(func: Callable, skip_names: Sequence[str] = ()) -> FuncMetadata:
-    """Given a function, return metadata including a pydantic model representing its signature.
+    """Given a function, return metadata including a pydantic model representing its
+    signature.
 
     The use case for this is
     ```
@@ -114,7 +113,8 @@ def func_metadata(func: Callable, skip_names: Sequence[str] = ()) -> FuncMetadat
     return func(**validated_args.model_dump_one_level())
     ```
 
-    **critically** it also provides pre-parse helper to attempt to parse things from JSON.
+    **critically** it also provides pre-parse helper to attempt to parse things from
+    JSON.
 
     Args:
         func: The function to convert to a pydantic model
@@ -130,7 +130,7 @@ def func_metadata(func: Callable, skip_names: Sequence[str] = ()) -> FuncMetadat
     for param in params.values():
         if param.name.startswith("_"):
             raise InvalidSignature(
-                f"Parameter {param.name} of {func.__name__} may not start with an underscore"
+                f"Parameter {param.name} of {func.__name__} cannot start with '_'"
             )
         if param.name in skip_names:
             continue