get_shellcheck

#!/bin/env python

import os, re, requests

site = 'http://download.opensuse.org/repositories/devel:/languages:/haskell:/lts:/6/openSUSE_Backports_SLE-12-SP2/x86_64/'

response = requests.get(site)

if response.status_code == 404:
        raise Exception('Website not available, HTTP response code: ' + str(response.status_code))

filename = sorted(set(re.findall('ShellCheck-[0-9].*?rpm',response.content)))[-1]

if filename == '':
        raise Exception('Remote file not found')
else:
        print 'Found ' + filename

if os.path.isfile(filename):
        raise Exception('File exists already')

import urllib2

url = os.path.join(site, filename)

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