ssh-host/ssh-host.py

import subprocess
import argparse
import configparser
cp = configparser.ConfigParser(interpolation=configparser.ExtendedInterpolation())
cp.read('hostnames.ini')
if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    group = parser.add_mutually_exclusive_group(required=True)
    group.add_argument('-o','--wan',action = 'store_true')
    group.add_argument('-l','--lan',action = 'store_true')
    parser.add_argument('-p','--pre-script', help= 'script to run before connecting(in config dir)')
    parser.add_argument('name',help='name of config file to use (sans .cfg)')
    parser.add_argument('arg',nargs = '*')
    args = parser.parse_args()

    if pre:
        pre = '~/.ssh/config/{}'.format(args.pre_script)
        subprocess.check_call(pre)
    if args.wan:
        host = cp['wan'][args.name]
    elif args.lan:
        host = cp['lan'][args.name]
    cmd = ['ssh','-F','~/.ssh/{}.cfg'.format(args.name),host] + args.arg
    subprocess.call(cmd)