Export keywords for a search query (export_keywords_csv)

import codecs
import json
import pprint
import urllib.request as urlrequest
from urllib.parse import urlencode

host = 'http://api.serpstat.com/v3'
method = 'export_keywords_csv'

params = {
    'query': 'buy%20laptop',
    'se': 'g_us',
    'token': 'ijmiom4f5m34905g03um8342dm04923lre3w'}

api_url = "{host}/{method}?{params}".format(
    host=host,
    method=method,
    params=urlencode(params, safe=',')
)

try:
    csv_data = urlrequest.urlopen(api_url).read()
except Exception as e0:
    print("API request error: {error}".format(error=e0))

codecs.open('csv_data.csv', mode='w', encoding='utf8').write(csv_data.decode('utf8'))