Question

我是python和编码的新手。当我正在阅读JSON并打印它时，需要12秒（这太长了）。是否还有其他方法可以加载URL并更快地读取和打印它？

阵列？ for循环？如果您需要API密钥进行测试，可以从Forecast for Developers获取它们。

import xml.dom.minidom, xml.sax.saxutils
import logging
import httplib
from socket import timeout
import datetime
import time
import simplejson as json
import urllib2
import sys, os, platform, re
import sched, time
from xml.dom import minidom
from urllib2 import urlopen
import re

urlnyp='https://api.forecast.io/forecast/apikey/1.37871,103.848808'
resultnyp = urllib2.urlopen(urlnyp)
contentnyp = resultnyp.read()

urltampines='https://api.forecast.io/forecast/apikey/1.353092,103.945229'
resulttampines = urllib2.urlopen(urltampines)
contenttampines = resulttampines.read()

urlcck='https://api.forecast.io/forecast/apikey/1.3975669,103.7473389'
resultcck = urllib2.urlopen(urlcck)
contentcck = resultcck.read()

urlyishun='https://api.forecast.io/forecast/apikey/1.429463,103.835182'
resultyishun = urllib2.urlopen(urlyishun)
contentyishun = resultyishun.read()

urlredhill='https://api.forecast.io/forecast/apikey/1.289732,103.81675'
resultredhill = urllib2.urlopen(urlredhill)
contentredhill = resultredhill.read()


weatherForecastnyp = json.loads(contentnyp)
weatherForecastcck = json.loads(contentcck)
weatherForecasttampines = json.loads(contenttampines)
weatherForecastredhill = json.loads(contentredhill)
weatherForecastyishun = json.loads(contentyishun) 



currentlynyp = weatherForecastnyp['currently']
for key in sorted(currentlynyp):
    print '{0} : {1}'.format(key, currentlynyp[key])
print 'psiAverage : ' + str(psi_avg)
print 'latitude : ' + str(weatherForecastnyp['latitude'])
print 'longitude : ' + str(weatherForecastnyp['longitude'])
print 'location : Ang-Mo-Kio'
print


currentlycck = weatherForecastcck['currently']
for key in sorted(currentlycck):
    print '{0} : {1}'.format(key, currentlycck[key])
print 'psiAverage : ' + str(psi_avg)
print 'latitude : ' + str(weatherForecastcck['latitude'])
print 'longitude : ' + str(weatherForecastcck['longitude'])
print 'location : Choa-Chu-Kang'
print


currentlytampines = weatherForecasttampines['currently']
for key in sorted(currentlytampines):
    print '{0} : {1}'.format(key, currentlytampines[key])
print 'psiAverage : ' + str(psi_avg)
print 'latitude : ' + str(weatherForecasttampines['latitude'])
print 'longitude : ' + str(weatherForecasttampines['longitude'])
print 'location : Tampines'
print

currentlyyishun = weatherForecastyishun['currently']
for key in sorted(currentlyyishun):
    print '{0} : {1}'.format(key, currentlyyishun[key])
print 'psiAverage : ' + str(psi_avg)
print 'latitude : ' + str(weatherForecastyishun['latitude'])
print 'longitude : ' + str(weatherForecastyishun['longitude'])
print 'location : Yishun'
print


currentlyredhill = weatherForecastredhill['currently']
for key in sorted(currentlyredhill):
    print '{0} : {1}'.format(key, currentlyredhill[key])
print 'psiAverage : ' + str(psi_avg)
print 'latitude : ' + str(weatherForecastredhill['latitude'])
print 'longitude : ' + str(weatherForecastredhill['longitude'])
print 'location : Redhill'
print

Answer 1

可能瓶颈是多个GET请求。通过使用httplib库可以实现显着的加速，这可以让您更好地控制底层连接。

试试这个：

import httplib

host = 'api.forecast.io'
conn = httplib.HTTPSConnection(host)

urlnyp = '/forecast/apikey/1.37871,103.848808'
conn.request('GET', urlnyp)
resultnyp = conn.getresponse()
contentnyp = resultnyp.read()

urltampines = '/forecast/apikey/1.353092,103.945229'
conn.request('GET', urltampines)
resulttampines = conn.getresponse()
contenttampines = resulttampines.read()

# ...

conn.close()

Python在url上读取速度更快并加载simplejson？

1 个答案: