trunklucator_main.py

import trunklucator
import json

#You can change this format in frontend part.
#Current format - (label text, returning value, key code for shortcut)
META = {"buttons":[('Cat (A)', 1, 65), ('Dog (X)', 0, 88), ('Skip (Enter)', -1, 13)]}

sys_stdin = [
	'{"html":"<img src=\\"/data/10005.jpg\\">", "file":"10005.jpg"}',
	'{"html":"<img src=\\"/data/10006.jpg\\">", "file":"10006.jpg"}',
	'{"html":"<img src=\\"/data/10038.jpg\\">", "file":"10038.jpg"}',
	'{"html":"<img src=\\"/data/10039.jpg\\">", "file":"10039.jpg"}',
	'{"html":"<img src=\\"/data/10082.jpg\\">", "file":"10082.jpg"}',
	'{"html":"<img src=\\"/data/10083.jpg\\">", "file":"10083.jpg"}',
	'{"html":"<img src=\\"/data/10127.jpg\\">", "file":"10127.jpg"}',
	'{"html":"<img src=\\"/data/10128.jpg\\">", "file":"10128.jpg"}',
	'{"html":"<img src=\\"/data/10172.jpg\\">", "file":"10172.jpg"}',
	'{"html":"<img src=\\"/data/10173.jpg\\">", "file":"10173.jpg"}'
]

with trunklucator.WebUI(data_dir="./data") as tru: # start http server in background
    for data in map(json.loads, sys_stdin): #read json data from standart input
        y = tru.ask(data, META) #<- wait for user action on web page
        print("{}".format(json.dumps({"file":data["file"], "is_cat": y}))) #output result