def main():
    iface = "eth0:"
    f = open("/proc/net/dev","r")
    lines = f.readlines()
    f.close()
    x = 0
    r = '\s+'+iface+'\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+'
    while x < len(lines):
        result = re.match(r, lines[x])
        print result
        x +=1