use python3

README.md

@@ -20,7 +20,7 @@ bin/img-gen
 - Docker
 - Docker Compose
 - qemu-user-static
-- awk, bash, curl, fallocate, grep, gzip, losetup, mkfs.fat, parted, ruby, ssh-keygen, tar, xargs
+- awk, bash, curl, fallocate, grep, gzip, losetup, mkfs.fat, parted, python3, ssh-keygen, tar, xargs
 
 ### WiFi の設定
 

bin/version

@@ -1,13 +1,12 @@
-#!/usr/bin/env ruby
+#!/usr/bin/env python3
 # 最新のバージョンを取得
 # Usage: bin/version
-require "open-uri"
-require "yaml"
+from urllib.request import urlopen
+import yaml
 
 base = "http://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/armhf"
-url = "#{base}/latest-releases.yaml"
-io = URI.open(url)
-yaml = YAML.load(io)
-version = yaml.dig(0, "version")
+url = f"{base}/latest-releases.yaml"
+res = urlopen(url)
+version = yaml.safe_load(res)[0]["version"]
 
-puts version
+print(version)