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Merge pull request #81 from a-akimov/python-server-add-ruff

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Python weather server - Add the ruff llinter and apply it
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Jonathan Hefner 2025-12-12 13:55:41 -06:00 • committed by GitHub
commit 1cdc31a894
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3 changed files with 82 additions and 14 deletions
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30
weather-server-python/pyproject.toml
View file

@ -13,6 +13,36 @@ dependencies = [
requires = [ "hatchling",]
build-backend = "hatchling.build"
[dependency-groups]
dev = [
"ruff>=0.14.8",
]
[project.scripts]
weather = "weather:main"
[tool.ruff]
line-length = 120
target-version = "py310"
extend-exclude = ["README.md"]
[tool.ruff.lint]
select = [
"C4", # flake8-comprehensions
"C90", # mccabe
"E", # pycodestyle
"F", # pyflakes
"I", # isort
"PERF", # Perflint
"PL", # Pylint
"UP", # pyupgrade
]
ignore = ["PERF203", "PLC0415", "PLR0402"]
mccabe.max-complexity = 24 # Default is 10
[tool.ruff.lint.pylint]
allow-magic-value-types = ["bytes", "float", "int", "str"]
max-args = 23 # Default is 5
max-branches = 23 # Default is 12
max-returns = 13 # Default is 6
max-statements = 102 # Default is 50

34
weather-server-python/uv.lock generated
View file

@ -724,6 +724,32 @@ wheels = [
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[[package]]
name = "shellingham"
version = "1.5.4"
@ -826,8 +852,16 @@ dependencies = [
{ name = "mcp", extra = ["cli"] },
]
[package.dev-dependencies]
dev = [
{ name = "ruff" },
]
[package.metadata]
requires-dist = [
{ name = "httpx", specifier = ">=0.28.1" },
{ name = "mcp", extras = ["cli"], specifier = ">=1.21.0" },
]
[package.metadata.requires-dev]
dev = [{ name = "ruff", specifier = ">=0.14.8" }]

32
weather-server-python/weather.py
View file

@ -1,4 +1,5 @@
from typing import Any
import httpx
from mcp.server.fastmcp import FastMCP
@ -9,12 +10,10 @@ mcp = FastMCP("weather")
NWS_API_BASE = "https://api.weather.gov"
USER_AGENT = "weather-app/1.0"
async def make_nws_request(url: str) -> dict[str, Any] | None:
"""Make a request to the NWS API with proper error handling."""
headers = {
"User-Agent": USER_AGENT,
"Accept": "application/geo+json"
}
headers = {"User-Agent": USER_AGENT, "Accept": "application/geo+json"}
async with httpx.AsyncClient() as client:
try:
response = await client.get(url, headers=headers, timeout=30.0)
@ -23,17 +22,19 @@ async def make_nws_request(url: str) -> dict[str, Any] | None:
except Exception:
return None
def format_alert(feature: dict) -> str:
"""Format an alert feature into a readable string."""
props = feature["properties"]
return f"""
Event: {props.get('event', 'Unknown')}
Area: {props.get('areaDesc', 'Unknown')}
Severity: {props.get('severity', 'Unknown')}
Description: {props.get('description', 'No description available')}
Instructions: {props.get('instruction', 'No specific instructions provided')}
Event: {props.get("event", "Unknown")}
Area: {props.get("areaDesc", "Unknown")}
Severity: {props.get("severity", "Unknown")}
Description: {props.get("description", "No description available")}
Instructions: {props.get("instruction", "No specific instructions provided")}
"""
@mcp.tool()
async def get_alerts(state: str) -> str:
"""Get weather alerts for a US state.
@ -53,6 +54,7 @@ async def get_alerts(state: str) -> str:
alerts = [format_alert(feature) for feature in data["features"]]
return "\n---\n".join(alerts)
@mcp.tool()
async def get_forecast(latitude: float, longitude: float) -> str:
"""Get weather forecast for a location.
@ -80,18 +82,20 @@ async def get_forecast(latitude: float, longitude: float) -> str:
forecasts = []
for period in periods[:5]: # Only show next 5 periods
forecast = f"""
{period['name']}:
Temperature: {period['temperature']}°{period['temperatureUnit']}
Wind: {period['windSpeed']} {period['windDirection']}
Forecast: {period['detailedForecast']}
{period["name"]}:
Temperature: {period["temperature"]}°{period["temperatureUnit"]}
Wind: {period["windSpeed"]} {period["windDirection"]}
Forecast: {period["detailedForecast"]}
"""
forecasts.append(forecast)
return "\n---\n".join(forecasts)
def main():
# Initialize and run the server
mcp.run(transport='stdio')
mcp.run(transport="stdio")
if __name__ == "__main__":
main()