How to set commission with condition by order?

[G_will]

In some futures exchange, If you close a position that you open it today, the commission is higher than normal.

So in this situation how to set commission ?

and I have read https://www.backtrader.com/docu/user-defined-commissions/commission-schemes-subclassing.html

but the def _getcommission(self, size, price, pseudoexec): method do not have order or trade argument pass in, can not determine the commission's order is open or is close, and close for which order.

[ab_trader]

I wouldn't even bother and set max commission for all trades.
If the system fails, then it is not stable enough for real trading.

[G_will]

but the trade fee of close a today position is quite high. it is the open position fee's 2000%.

If I set the max commission for all trades. It's too far from the real trading.

[backtrader]

Create a commission derived scheme which takes the corresponding data feed as an extra parameter. Use the data feed when called to get a timestamp.

tstamp = self.data.datetime.datetime()