'float' object is not subscriptable

[futureofworld]

I got this error while training a model, error look like this, please help to fix this issue
TypeError Traceback (most recent call last)
in ()
1 trained_sac = agent.train_model(model=model_sac,
2 tb_log_name='sac',
----> 3 total_timesteps=60000)

8 frames
/usr/local/lib/python3.7/dist-packages/finrl/finrl_meta/env_stock_trading/env_stocktrading.py in _do_buy()
156 # if self.state[index + 1] >0:
157 # Buy only if the price is > 0 (no missing data in this particular date)
--> 158 available_amount = self.state[0] / (self.state[index + 1]*(1 + self.buy_cost_pct[index])) # when buying stocks, we should consider the cost of trading when calculating available_amount, or we may be have cash<0
159 # print('available_amount:{}'.format(available_amount))
160

TypeError: 'float' object is not subscriptable

[duwf2003]

My God! It haven't been resolved yet.

[YangletLiu]

Well, would you like to help out? Be a God to this particular bug, :) Thx!

[zhumingpassional]

Did you initialize "initial_amount" a float number?

Please see the issue: #518. It can help you. Recently we revised the code.

The following code may help you:

buy_cost_list = sell_cost_list = [0.001] * stock_dimension
num_stock_shares = [0] * stock_dimension

env_kwargs = {
"hmax": 100,
"initial_amount": 1000000,
"num_stock_shares": num_stock_shares,
"buy_cost_pct": buy_cost_list,
"sell_cost_pct": sell_cost_list,
"state_space": state_space,
"stock_dim": stock_dimension,
"tech_indicator_list": config.INDICATORS,
"action_space": stock_dimension,
"reward_scaling": 1e-4
}
e_train_gym = StockTradingEnv(df = train, **env_kwargs)

[zhumingpassional]

Fixed.