Resume Download

Resume Download via pyCurl


import os
import pycurl
import sys
def progress(total, existing, upload_t, upload_d):
    existing = existing + os.path.getsize(filename)
    try:

       frac = float(existing)/float(total)

    except:


        frac = 0


    sys.stdout.write("\r%s %3i%%" % ("File downloaded - ", frac*100))



url = raw_input('Enter URL to download folder/file: ')



filename = url.split("/")[-1].strip()



def test(debug_type, debug_msg):



     print "debug(%d): %s" % (debug_type, debug_msg)



c = pycurl.Curl()



c.setopt(pycurl.URL, url)



c.setopt(pycurl.FOLLOWLOCATION, 1)



c.setopt(pycurl.MAXREDIRS, 5)



# Setup writing



if os.path.exists(filename):



    f = open(filename, "ab")



    c.setopt(pycurl.RESUME_FROM, os.path.getsize(filename)



else:



    f = open(filename, "wb")



c.setopt(pycurl.WRITEDATA, f)



#c.setopt(pycurl.VERBOSE, 1)



c.setopt(pycurl.DEBUGFUNCTION, test)



c.setopt(pycurl.NOPROGRESS, 0)



c.setopt(pycurl.PROGRESSFUNCTION, progress)



try:



    c.perform()



except:



    pass