Add tasks from a JSON file to a PyBossa server using pybossa-client

gistfile1.py

import json
import pbclient

pbclient.set('endpoint', 'http://server.com')
pbclient.set('api_key', 'YOURAPIKEY')

# Get the application ID
app = pbclient.find_app(short_name='APP_SHORT_NAME')

# Parse the JSON object
data = open('/path/to/your/json/file').read()
tasks = json.loads(data)

# NOTE: you need to know the structure of your JSON file to pass the correct information to the task_info variable. 
for task in tasks:
   pbclient.create_task(app.id, task_info=task)