使用Python从ASPX网页获取文件

时间:2014-04-02 22:20:27

标签: python asp.net

我正在尝试从此网站下载CSV文件,但是当我使用这段代码(以前几周工作时)或者我正在使用时,我一直收到一个HTML文件wget的。

url = "http://.....aspx"

file_name = "%s.csv" % url.split('/')[3]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)

file_size_dl = 0
block_sz = 8192
while True:
    buffer = u.read(block_sz)
    if not buffer:
        break

    file_size_dl += len(buffer)
    f.write(buffer)
    status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
    status = status + chr(8)*(len(status)+1)
    print status,

如何使用Python再次获取此文件?

谢谢

1 个答案:

答案 0 :(得分:3)

使用Requests库而不是urllib2解决:

import requests

url = "http://www.....aspx?download=1"

file_name = "Data.csv"
u = requests.get(url)

file_size = int(u.headers['content-length'])
print "Downloading: %s Bytes: %s" % (file_name, file_size)

with open(file_name, 'wb') as f:
    for chunk in u.iter_content(chunk_size=1024): 
        if chunk: # filter out keep-alive new chunks
            f.write(chunk)
            f.flush()
f.close()