Script to generate docker-compose.yml with many services

generate.py

import sys
import yaml

service = {'image': 'alpine:latest', 'command': 'sleep 30'}

docker_compose_yaml = {
    'version': '3.4',
    'services': {}
}

for i in range(int(sys.argv[1])):
    docker_compose_yaml['services']["service_%03d" % i] = service

yaml.Dumper.ignore_aliases = lambda *args: True
print(yaml.dump(docker_compose_yaml, default_flow_style=False))