Crypto_Price

#!/usr/bin/python3.8
from tokens import cmc_token
import requests
import json
from tokens import tel_token
import discord
from discord.ext import commands

def write_json(data,filename='response.json'):
    with open(filename,'w')as f:
        json.dump(data,f,indent=4,ensure_ascii=False)


def get_cmc_data(crypto):
    url = 'https://pro-api.coinmarketcap.com/v1/cryptocurrency/quotes/latest'
    headers={'X-CMC_PRO_API_KEY':cmc_token}
    params={'symbol':crypto,'convert':'GBP'} # the crypto symbol is BTC so it converts BTC to GBP
    r = requests.get(url,headers=headers,params=params).json()
    price = r ['data'][crypto]['quote']['GBP'['price']
    return price    # getting error here (invalid syntax)

def main():
    print(get_cmc_data('BTC'))

if __name__=="__main__":
    main()