使用Python创建Webscraping环境时发生IOError

在工作中，我试图从加拿大环境部的网页上获取大量数据，该网页上有自己的说明：当我运行代码时，总是出现错误10054；远程主机强制关闭的现有连接。作为一个相当新手的程序员，我想知道该网站是否不喜欢我的程序（我在省政府网站上测试了该程序的早期阶段，它似乎检索到了信息），或者我的代码中是否有一个特定的错误阻止了我正确连接。欢迎就如何进行提出任何建议。谢谢

这是我的密码；最后一个try/except块是我在收到IOError消息后重试连接的尝试：

import math
import datetime
import sys
import os
import urllib

# out_folder is relative to local directory
# station id is arbitrary; figure this out from the Web site
#   by inspecting the URL of the stations Web page
[station, start_year, end_year, out_folder] = sys.argv[1:5]

print "retrieving data for station "+station+" for years "+start_year+" to "+end_year+" and saving in folder ./"+out_folder+"\n"

# generate filenames and download them
for year in range(int(start_year), int(end_year)+1):
    for month in range(1, 2):

        url = "http://climate.weather.gc.ca/climateData/bulkdata_e.html?format=csv&stationID="+str(station)+"&Year="+str(year)+"&Month="+str(month+1)+"&Day=1&timeframe=2&submit=Download+Data"
        filename = 'stn_'+str(station)+'_'+str(year)+'.csv'
        print 'stn_'+str(station)+'_'+str(year)+'.csv'
        try:
            print "Trying to retrieve data; please hold"
            urllib.urlretrieve(url, out_folder+'\\'+filename)
        except IOError:
            os.mkdir(out_folder)
            print "folder "+out_folder+" does not exist yet, creating it ...\n"
            try:
                print "Trying to retrieve data; please hold"
                urllib.urlretrieve(url, out_folder+'\\'+filename)
            except IOError:
                print "Trying to retrieve data; please hold"
                urllib.urlretrieve(url, out_folder+'\\'+filename)

exit()

此外，如果有帮助，回溯的最后一行是：

File "C:\Python27\lib\socket.py", line 476 in readline

data = self._sock.recu(self._rbufsize)

IOError: [Errno socket error] [Errno 10054] An existing connection was forcibly...

---

抱歉不必要的询问；这个问题与我自己的网络阻止连接有关，我切换到Wifi，程序运行正常