Get the topics for a given text using the Alchemy API

alchemy_api_topic_identification_text.py

endpoint = "http://gateway-a.watsonplatform.net/calls/text/TextGetRankedTaxonomy"

def get_topics(text):
    data = {
        'apikey': API_KEY,
        'outputMode': 'json',
        'text': text
    }
    headers = {'content-type': 'application/x-www-form-urlencoded'}
    r = requests.post(endpoint, data=data, headers=headers)
    if r.status_code == 200:
        resp = r.json()
        print [(t['label'], t['score']) for t in resp['taxonomy']]