#!/usr/bin/python
# -*- coding: utf-8 -*-
from urllib import urlopen
from xml.dom.minidom import parse
WEATHER_URL = 'http://xml.weather.yahoo.com/forecastrss?p=%s&u=%s'
WEATHER_NS = 'http://xml.weather.yahoo.com/ns/rss/1.0'
ERROR_MSG = 'No weather feed'
weather_params = ('FRXX0076','c')
class YWeatherAPI:
def __init__(self):
self.options = ['location', 'astronomy', 'units', 'wind', 'atmosphere', 'condition', 'forecast']
def query_api(self, params):
try:
return self.get_data(parse(urlopen(WEATHER_URL % params)))
except:
return ERROR_MSG
def get_data(self, xml):
data = {}
for option in self.options:
param_list = []
for node in xml.getElementsByTagNameNS(WEATHER_NS, option):
attrs = node.attributes.keys()
options_dict = {}
for attr in attrs :
value = node.getAttribute(attr)
options_dict[attr] = value
param_list.append(options_dict)
data[option]=param_list
return data
y = YWeatherAPI()
print y.query_api(weather_params)
Refactorings
No refactoring yet !
micheal d.
September 8, 2008, September 08, 2008 17:27, permalink
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Well, it depends wether you would like to have some speed increase or a serious speed increase. If first, use xml.sax, if second I advise using cElementTree. Then again for RSS I think sax would be perfect.
Is there a more efficient way to parse the Yahoo weather RSS feed ?