Python: get default gateway for a local interface/ip address in linux

Question

On Linux, how can I find the default gateway for a local ip address/interface using python?

I saw the question \"How to get internal IP, external IP and default gate

Answer 1

def get_ip():
    file=os.popen("ifconfig | grep 'addr:'")
    data=file.read()
    file.close()
    bits=data.strip().split('\n')
    addresses=[]
    for bit in bits:
        if bit.strip().startswith("inet "):
            other_bits=bit.replace(':', ' ').strip().split(' ')
            for obit in other_bits:
                if (obit.count('.')==3):
                    if not obit.startswith("127."):
                        addresses.append(obit)
                    break
    return addresses