import zlib,gzip
f_in = open(fil, 'rb')
f_out = gzip.open(fil+'.gz', 'wb')
f_out.writelines(f_in)
f_out.close()
f_in.close()

f_out = gzip.open('examp.gz', 'wb')
while 1:
    v=np.random.rand(1024)
    f_out.write(v.data)
f_out.close()