download_file_from_web

from urllib import requestgoogle_url = 'http://real-chart.finance.yahoo.com/table.csv?s=GOOG&d=1&e=23&f=2015&g=d&a=2&b=27&c=2014&ignore=.csv'def download_stock_data(csv_url):    response = request.urlopen(csv_url)     # 打开给定的url地址    csv = response.read()                   # 读取url里的数据并传递给csv    csv_str = str(csv)                      # 将CSV文件转换成string格式    lines = csv_str.split('\\n')            # 将数据以回车的分割形式断开    dest_url = r'google.csv'                # 给定输出文件名以及后缀    fx = open(dest_url,'w')    for line in lines:        fx.write(line + '\n')    fx.close()download_stock_data(google_url)