Question

这是我需要下载的link。

我的问题是约会。我的示例代码不接受这种URL。你能帮帮我这个家伙吗？谢谢！

import urllib2

url = "wesm.ph/chart/export/luzon_dmd_csv_export.php?date=201705&hour=24"

file_name = url.split('/')[-1]
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,

f.close()

Answer 1

您需要在上面的代码示例中进行两处更改。将“http：//”添加到网址。应该按以下方式添加查询字符串：

url = "http://wesm.ph/chart/export/luzon_dmd_csv_export.php"
queryargs = { 'date':'201705', 'hour':'24' }
data = urllib.urlencode(queryargs)
u = urllib.urlopen(url,data)

代码最终应该如下：

import urllib2
import urllib

url = "http://wesm.ph/chart/export/luzon_dmd_csv_export.php"
queryargs = { 'date':'201705', 'hour':'24' }
data = urllib.urlencode(queryargs)
file_name = url.split('/')[-1].split('.')[-1]+'.csv'
u = urllib.urlopen(url,data)
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,

f.close()

Answer 2

import requests

r = requests.get('http://wesm.ph/chart/export/luzon_dmd_csv_export.php?date=20160115&hour=24', stream=True)
with open('filename.csv', 'wb') as fd:
    for chunk in r.iter_content(chunk_size=128):
        fd.write(chunk)

只需使用requests

即可

使用python下载带日期的csv文件

2 个答案: