#coding:utf8

import zipfile,os

def backupToZip(folder):

    folder = os.path.abspath(folder)



    number = 1

    while True:

        zipFileName = os.path.basename(folder)+"_"+str(number)+".zip"

        if not os.path.exists(zipFileName):

            break

        number = number +1



    #create Zip File

    print ('creating %s ...'%(zipFileName))



    backupZip= zipfile.ZipFile(zipFileName,"w")



    #walk folder compress to zip

    for foldername,subfolders,filename in os.walk(folder):

        print('Adding files in %s...'%(foldername))

        backupZip.write(foldername)

        for filename in filename:

            newBase = os.path.basename(folder) + '_'

            print "newBase= "+newBase

            if filename.startswith(newBase) and filename.endswith('.zip'):

                print "filename: "+filename

                continue

            backupZip.write(os.path.join(foldername, filename))





    backupZip.close()

    print "Done"



backupToZip('C:\\gyarmy')