Monitor PEV prices in different pools on sSwap

pev_new.py

import requests

PEARL_PEV_CONTRACT_ADDRESS = 'TYCmYzi5c2X5FKhUBgD1FtgRCho8aiKd3j'
TAI_PEV_CONTRACT_ADDRESS = 'TNEgrJkG5S1t8p1xqFfqat3LsZaBbKJyVD'
SAN_PEV_CONTRACT_ADDRESS = 'TL5WhUrxfdi8G5WTuDDEB6Ai4GthiZ1jLK'
USDT_PEV_CONTRACT_ADDRESS = 'TSitoyPGTMb6pR3WrWM2jEtCis6b6QJcF1'

USDT_CONTRACT_ADDRESS = 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t'
PEV_CONTRACT_ADDRESS = 'TQQhxCErnhCQ4XG2fAqP2jG6ZwH5MBFv7X'
PEARL_CONTRACT_ADDRESS = 'TGbu32VEGpS4kDmjrmn5ZZJgUyHQiaweoq'
TAI_CONTRACT_ADDRESS = 'TRwS7apsNdRGzMBfhB2hVC4RhqfubUYZ8P'
SAN_CONTRACT_ADDRESS = 'TCMgrfpeHr49iGUBf9S22QAcFoynfqumhL'

PEARL_USDT_CONTRACT_ADDRESS = 'TJydMBnDJUYccpBPbLqn6oBxaiaCAhxcFd'
TAI_USDT_CONTRACT_ADDRESS = 'TSdDVvLdt3Vu9TqyEH5m273pJxbpJoqAwR'
SAN_USDT_CONTRACT_ADDRESS = 'TUU9vEMbEndY4VBm6C6T35EHByvkaMQypc'


def fetch_token_balances(token_addresses, pair_address):
    API_URL = 'https://apilist.tronscan.io/api/account?address=%s' % pair_address
    res = requests.get(API_URL)
    tokens = res.json()['trc20token_balances']
    return {t['contract_address']: float(t['balance']) / (10 ** t['decimals'])
            for t in tokens if t['contract_address'] in token_addresses}


if __name__ == '__main__':
    try:
        sep = '=' * 10
        print('%s PEV price in different pools %s' % (sep, sep))

        usdt_pev_data = fetch_token_balances([USDT_CONTRACT_ADDRESS, PEV_CONTRACT_ADDRESS], USDT_PEV_CONTRACT_ADDRESS)
        pev_price_in_usdt = usdt_pev_data[USDT_CONTRACT_ADDRESS] / usdt_pev_data[PEV_CONTRACT_ADDRESS]
        print('USDT pool: 1 PEV = %.2f usdt.' % pev_price_in_usdt)

        config = [
                ('PEARL', PEARL_CONTRACT_ADDRESS, PEARL_PEV_CONTRACT_ADDRESS, PEARL_USDT_CONTRACT_ADDRESS),
                ('TAI', TAI_CONTRACT_ADDRESS, TAI_PEV_CONTRACT_ADDRESS, TAI_USDT_CONTRACT_ADDRESS),
                ('SAN', SAN_CONTRACT_ADDRESS, SAN_PEV_CONTRACT_ADDRESS, SAN_USDT_CONTRACT_ADDRESS),
        ]

        for symbol, token_address, pev_pair_address, usdt_pair_address in config:
            pev_data = fetch_token_balances([PEV_CONTRACT_ADDRESS, token_address], pev_pair_address)
            pev_price_in_token = pev_data[token_address] / pev_data[PEV_CONTRACT_ADDRESS]

            token_usdt_data = fetch_token_balances([USDT_CONTRACT_ADDRESS, token_address], usdt_pair_address)
            token_price_in_usdt = token_usdt_data[USDT_CONTRACT_ADDRESS] / token_usdt_data[token_address]

            pev_usdt_price_in_token_pool = pev_price_in_token * token_price_in_usdt

            print('%s pool: 1 PEV = %.2f usdt. (%s Price: %.2f usdt)' % (
                symbol, pev_usdt_price_in_token_pool, symbol, token_price_in_usdt))
    except KeyboardInterrupt:
        print('You killed it.')