planet-wars/backend/static/bot/simple.py

import sys, json, random

def move(moves):
    record = {'moves': moves}
    print(json.dumps(record))
    sys.stdout.flush()

for line in sys.stdin:
    state = json.loads(line)

    # find planet with most ships
    my_planets = [p for p in state['planets'] if p['owner'] == 1]
    other_planets = [p for p in state['planets'] if p['owner'] != 1]

    if not my_planets or not other_planets:
        move([])
    else:
        planet = max(my_planets, key=lambda p: p['ship_count'])
        dest = min(other_planets, key=lambda p: p['ship_count'])
        move([{
            'origin': planet['name'],
            'destination': dest['name'],
            'ship_count': planet['ship_count'] - 1
        }])