class Solution(object):
    def maxProfit(self, prices, fee):
        """
        :type prices: List[int]
        :type fee: int
        :rtype: int
        """
        hold, not_hold = None, 0
        for p in prices:
            hold, not_hold = max(hold, not_hold - p - fee), max(not_hold, None if hold is None else hold + p)
        return max(hold, not_hold)

Add py solution for 714. Best Time to Buy and Sell Stock with Transaction Fee
Add py solution for 714. Best Time to Buy and Sell Stock with Transaction Fee

714. Best Time to Buy and Sell Stock with Transaction Fee: https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/
