Python trading boy code was working but now stopped

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Python

i coded a trading bot it buys coin at market rate and sell it after 5 seconds it was working but when I installed some modules because it is showing some latnce of about 4 seconds. I didn't touched the code but suddenly it stoped working it is now showing error in

line 41
print(f"Selling {qty} {coin_name.upper()}")
^
SyntaxError: invalid syntax

"

What I have tried:

from binance.client import Client
from binance.exceptions import BinanceAPIException
import json
import sys
import time
import math

api_key = '--------------------------------------'
api_secret = '----------------------------'
client = Client(api_key, api_secret)
amount = sys.argv[1]
coin_name = sys.argv[2]
SELL_DELAY = 4

symbol_info = client.get_symbol_info(coin_name.upper() + 'BNB')


def place_order(coin_symbol, amnt):
    order = None
    try:
        order = client.order_market_buy(
            symbol=coin_symbol,
            quoteOrderQty=amnt)

    except BinanceAPIException as e:
        print(e.status_code)
        print(e.message)

    return order


def sell_order():
    sell = None
    try:
        balance = client.get_asset_balance(asset=coin_name.upper())['free']
        qty = float(balance)*0.9995
        step_size = symbol_info['filters'][2]['stepSize']
        precision = int(round(-math.log(float(step_size), 10), 0))
        qty = float(round(qty, precision))

        print(f"Selling {qty} {coin_name.upper()}")

        sell = client.order_market_sell(
            symbol=coin_name.upper() + 'BNB',
            quantity=qty)

    except BinanceAPIException as e:
        print(e.status_code)
        print(e.message)

    return sell


def main():
    order = place_order(coin_name.upper() + 'BNB', amount)

    if order is not None:
        order_time_raw = str(order['transactTime'])
        order_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(int(order_time_raw[0:10])))

        print("----------------------------------------------------------------")
        print("\nYou purchased {0} for Amount {1}\n".format(coin_name.upper(), amount))
        print("----------------------------------------------------------------")
        print("Order Details:\n")
        print(f"Symbol: {order['symbol']}")
        print(f"Status: {order['status']}")
        print(f"Executed Quantity: {order['executedQty']}")
        print(f"Original Quantity: {order['fills'][0]['qty']}")
        print(f"Symbol Price: {order['fills'][0]['price']}")
        print(f"BNB Spent: {order['cummulativeQuoteQty']}")
        print(f"Executed at: {order_time}")

        print('Waiting For 5 Seconds\n')

        time.sleep(SELL_DELAY)

        print('Selling Now\n')

    sell = sell_order()

    if sell is not None:
        sell_time_raw = str(sell['transactTime'])
        sell_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(int(sell_time_raw[0:10])))
        print("----------------------------------------------------------------")
        print("\nYou Sold {0} for Amount {1}\n".format(coin_name.upper(), amount))
        print("----------------------------------------------------------------")
        print("Sale Details:\n")
        print(f"Symbol: {sell['symbol']}")
        print(f"Status: {sell['status']}")
        print(f"Executed Quantity: {sell['executedQty']}")
        print(f"Original Quantity: {sell['fills'][0]['qty']}")
        print(f"Symbol Price: {sell['fills'][0]['price']}")
        print(f"BNB Earned: {sell['cummulativeQuoteQty']}")
        print(f"Executed at: {sell_time}")

        print("\n----------------------------------------------------------------")
        print("[+] Happy Trading [+]")
        print("----------------------------------------------------------------")


if __name__ == "__main__":
    main()