JSON and Scraping

import requests

stock = input('Stock Ticker? ').lower()

while stock != 'quit' and stock != 'exit':

    # Build the JSON query
    query = 'http://query1.finance.yahoo.com/v11/finance/quoteSummary/' + stock + '?modules=financialData'

    with requests.session():
        header = {'Connection': 'keep-alive',
                   'Expires': '-1',
                   'Upgrade-Insecure-Requests': '1',
                   'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) \
                   AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36'
                   }
        website = requests.get(query, headers=header)
        json = website.json()

    # Get the currentPrice from JSON
    price_dict = json['quoteSummary']['result'][0]['financialData']['currentPrice']
    print(stock + ' current price: $' + price_dict['fmt'])
    
    stock = input('Stock Ticker? ').lower()