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Chris 2022-03-09 17:43:06 -05:00
parent 05ed95fb65
commit 729b179d43
7 changed files with 317 additions and 1 deletions
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2
.gitignore vendored Normal file
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dist/*
**/__pycache__/*

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globalize_weather.sh Normal file
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# This shell shell script adds `weather` to your global PATH, so that you'll be able to
# run it from any Terminal session. If you want this, just run:
#
# source globalize_weather.sh
CHECK=$(which weather 2>&1)
if [ $CHECK = "weather not found" ]; then
echo "The weather script was not found. Make sure you are in a Poetry shell and that you have run poetry install."
else
echo "\n# Adding path for weather" >> ~/.mwc_rc
echo "export PATH=\"$(dirname $(which weather)):\$PATH\"" >> ~/.mwc_rc
source ~/.mwc_rc
fi

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poetry.lock generated Normal file
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7
pyproject.toml
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[tool.poetry]
name = "mwc-pedprog-unit01-lab02"
name = "weather"
version = "0.1.0"
description = ""
authors = ["Chris <github.com@accounts.chrisproctor.net>"]
@ -7,9 +7,14 @@ license = "MIT"
[tool.poetry.dependencies]
python = "^3.9"
requests = "^2.27.1"
geocoder = "^1.38.1"
[tool.poetry.dev-dependencies]
[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"
[tool.poetry.scripts]
weather = "weather.weather_cli:weather_cli"

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weather/weather.py Normal file
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from weather.weather_apis import (
geocode_location,
geocode_ip_address,
get_weather_office,
get_forecast
)
def print_weather(location=None, metric=False, verbose=False):
"""Prints out a weather report using the provided location, or using
the user's current location if no location was provided.
When metric is True, prints out the weather in metric units.
When verbose is True, prints out a more detailed report.
"""
print("Not finished...") # YOUR CODE HERE!
# This is a clunky way to check whether this module was called directly with `python weather.py`,
# or whether it's being imported by another module. If the module is being called, then we
# should actually run `print_weather`. But if this module is just being imported, we probably don't
# want this module to call any functions. We'll leave that up whoever is doing the importing.
if __name__ == "__main__":
print_weather()

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weather/weather_apis.py Normal file
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# Weather APIs
# This module contains functions which interact with external APIs related to weather.
# The module relies on USA-specific services; it will need to be extended using local
# services for other regions.
# The National Weather Service (NWS) provides weather forecasting services across US
# states and territories. NWS divides the country into a grid of 2.5km squares, and
# provides a forecast for each grid square.
import geocoder
import requests
def geocode_location(location_string):
"""Translates a location string into latitude and longitude coordinates.
Uses the OpenStreetMap API. Returns a dict with keys 'lat' and 'lng'
as shown below. When no result is found, returns None.
>>> geocode_location('11 Wall Street, New York')
{"lat": -74.010865, "lng": 40.7071407}
"""
result = geocoder.osm(location_string)
if result:
lat, lng = result.latlng
return {'lat': lat, 'lng': lng}
def geocode_ip_address(ip_address=None):
"""Translates an IP address into latitude and longitude coodrdinates.
When no IP address is provided, uses the user's current IP address.
>>> geocode_ip_address()
{'lat': 23.6585116, 'lng': -102.0077097}
"""
result = geocoder.ip(ip_address or 'me')
if result:
lat, lng = result.latlng
return {'lat': lat, 'lng': lng}
def get_weather_office(lat, lng):
"""Looks up the NWS weather office for a pair of lat/lng coordinates.
Returns a dict containing keys 'office', 'x', and 'y'.
If no matching weather office is found, returns None.
>>> coords = geocode_ip_address()
>>> get_weather_office(coords['lat'], coords['lng'])
{'office': 'BUF', 'x': 39, 'y': 59}
"""
url = "https://api.weather.gov/points/{},{}".format(lat, lng)
response = requests.get(url)
if response.ok:
result = response.json()
return {
"office": result['properties']['gridId'],
"x": result['properties']['gridX'],
'y': result['properties']['gridY']
}
def get_forecast(office, x, y, metric=False):
"""Fetches the weather forecast for the given NWS office, and (x, y) NWS grid tile.
Returns a list of time periods, where each time period is a dict containing keys
as shown below. If no forecast can be found, returns None.
When metric is True, returns temperatures in Celcius and wind speeds in km/hr.
"""
url = "https://api.weather.gov/gridpoints/{}/{},{}/forecast".format(office, x, y)
if metric:
url += "?units=si"
response = requests.get(url)
if response.ok:
result = response.json()
forecast = []
for period in result['properties']['periods']:
forecast.append({
'name': period['name'],
'temperature': period['temperature'],
'wind_speed': period['windSpeed'],
'wind_direction': period['windDirection'],
'description': period['shortForecast'],
})
return forecast

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weather/weather_cli.py Normal file
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from argparse import ArgumentParser
from weather.weather import print_weather
def weather_cli():
"""Provides a command-line interface for weather.
This function creates an ArgumentParser, which parses command line arguments.
Then it calls `print_weather` with the provided arguments.
"""
parser = ArgumentParser("weather", description="Prints out a weather report")
parser.add_argument("-l", "--location", help="Location for weather forecast")
parser.add_argument("-m", "--metric", action="store_true", help="Use metric units")
parser.add_argument("-v", "--verbose", action="store_true", help="Verbose output")
args = parser.parse_args()
print_weather(location=args.location, metric=args.metric, verbose=args.verbose)