Backtrader | Backtrader strategy machine

I'm trying to make a trading bot and am using backtrader for the same. I have been trying to debug this issue but couldn't find a solution yet. The code is as shown below

So, I'm new to Docker. I want to use Ta-Lib and freqtrade libraries for a bot I want to build. The problem is that I don't want to build the Dockerfile over and over again. I have been copying my python code in the Dockerfile as shown below but as soon as I change the python code, I have to rebuild the Dockerfile because I changed the copied python script. Each build takes over 10 minutes to complete and this makes my life very difficult to test the bot. Is there a way that I build the Dockerfile with all the dependencies and requirements first and then simply run my script using the image made? So that I don't have to rebuild the entire thing just after adding one line of code? The Dockerfile is as shown below

I just switched from Matlab to python and even newer to the backtrader library for backtestingtrading strategies. My questions might seem obvious.

My problem seems similar to this : https://community.backtrader.com/topic/2857/wanted-exit-long-and-open-short-on-the-same-bar-and-vice-versa

and this : https://community.backtrader.com/topic/2797/self-close-does-not-clear-position The code below is a simple MACD strategy. Here is the code :

I try to do back testing on stock data using backtrading library in python. and I use this simple strategy

Does someone know if it's possible to open multiple positions with only a single data feed? I am trying to do a second buy whilst in a position, which doesn't seem to be possible.

Nobody seems to adress this issue. Does anyone have any experience with Backtrader and have any input?

I am trying to write a backtesting strategy on Backtrader in Python, and below is the code that is giving me the error. I am using the latest version of backtrader as of July 2, 2021.

I was trying a simple example that prints datetime and close price from my csv. It's printing date correctly but for the time it's printing 23:59:59 only. Can you please help me to check what am I doing wrong?

Here is my code:

My idea is to track crude oil commodity prices and trade an ETF based on the movements of Oil.

Logic is:

• If price crosses SMA100 upwards trending for Oil, buy ETF
• If price crosses SMA100 downwards trending for oil, sell ETF

I use a generic SMA strategy but I cannot make it use the data from oil. Based on the plot it uses SMA 100 for the ETF.

I am very new to this. backtrader have a addwriter can write down some data,
cerebro.addwriter(bt.WriterFile, csv=True, out='outputfiles3\{}cerebro.csv'.format(ticker)) but buy and sell price always not match to the execute price.

so alternatively:

i did cerebro.addanalyzer(WritingAnalyzer) before cerebro.run()

so I am trying to build the csv file with 'datetime','open','close','cash','value','position size' but I don't know how to access those data. I can only point at current day close price with self.data[0]

I don't know how to do it right. I hope someone might able to give me some directions.