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Questions tagged [backtrader]

backtrader is a python backtesting library for trading strategies

107 questions
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ImportError Cannot import name 'warnings' from 'matplotlib.dates

Alpaca backtrader plot issue: I ran into this import issue and found this article, so I applied the code, but same issue not resolved. any one can help please? My installed matplotlib version is 3.3.1 backtrader 1.9.76.123 python 3.8.5 the entire…
G Chu
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Progress bar (using tqdm) prints in a new line everytime the update is called on the tqdm object (VSCode terminal)

I am trying to print the status of the progress of an optimization algorithm using the tqdm module available in Python, however, every time I try to update it, it prints the progress in a new line, is there a way I could only update the original…
yash
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Backtrader error: 'DataFrame' object has no attribute 'setenvironment'

I am new to backtrader, and I have a big problem. I want to start my strategy (just a simple GoldenCross strategy). This GoldenCross.py Script looks like this: import math import backtrader as bt class GoldenCross(bt.Strategy): params =…
chrissi2909
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Matplotlib plot no output jupyter-lab

I know I am beating a dead horse here, but I simply can't get the matplotlib plot to display in a Jupyterlab notebook. I am trying to run a python script that eventually plots inside a jupyter cell. Things I have tried: The best success that I had…
LeggoMaEggo
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Getting data in Backtrader issue

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. import backtrader as bt import backtrader.feeds as btfeeds from…
Rishab
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I have a issue at Backtrader Lib

I am interested in backtesting for my strategy by backtrader but I have a problem in the beginning. Here is my code: import backtrader as bt cerebro = bt.Cerebro() data = bt.feeds.GenericCSVData(dataname='BTCUSDT_15min.csv', dtformat =…
Ulaş Yılmaz
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How to created pandasData for backtrader with ccxt

I am trying to back test a strategy using backtrader. Most of the examples I have seen only are using a csv file. I was wondering if it is possible to just get data from an exchange and turn it into pandas dataframe and then use backtrader? When I…
Sarah James
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Python dynamic function parameters

When calling the function below, I can provide values that will be used instead of the default parameters in the function (see below). cerebro.addstrategy(GoldenCross, fast=10, slow=25) This works great for a small number of known parameters, but I…
Deemo
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backtrader printing data feed vaues does not print hours and minues and defaults to

I'm learning to use backtrader and I've come across a problem when trying to print out the datafeed. It correctly prints the day, open, high, low, close and volume but the hour and minutes data seems to default to 23:59:59.999989 on every line. Here…
tew
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backtrader time column : ValueError: time data '0' does not match format '%Y-%m-%d %H:%M:%S'

I have a price table that has date and time in a csv format: Date Time o h l c v 0 2020-07-09 15:10:00 8 8 7.5 7.94 41 1 2020-07-09 15:00:00 7.61 8.24 7.61 8.24 10 2 2020-07-09 …
BangolPhoenix
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Backtrader, using mongodb as datafeed instead CSV

I'm quite new to backtrader and since I've started I couldn't stop wondering why there's no database support for the datafeed. I've found a page on the official website where's described how to implement a custom datafeed. The implementation should…
Paolo Ardissone
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Backtrader : convert python code into backtrader custom indicator

I am trying to convert the snippet from https://medium.datadriveninvestor.com/how-to-detect-support-resistance-levels-and-breakout-using-python-f8b5dac42f21 into backtrader custom indicator. However, I encounter error AttributeError:…
bkcollection
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Can you add parameters to backtrader strategy?

I am using the backtrader library. class MA_CrossOver(bt.Strategy): alias = ('SMA_CrossOver',) params = ( # period for the fast Moving Average ('fast', 10), # period for the slow moving average ('slow',…
Borut Flis
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IndexError: list index out of range backtrader

Sorry for the noob question! I have a CSV that looks like: date,volume,open,close,high,low 2020-11-12 13:38:00,100,1.85,1.85,1.85,1.85 2020-11-12 13:58:00,100,1.85,1.85,1.85,1.85 2020-11-12 14:03:00,100,1.85,1.85,1.85,1.85 ... And I'm trying to use…
a7dc
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Is there an easy way to overwrite Backtrader IB broker live data feed?

I am working on Backtrader using IB Broker, And i need to overwrite data reciever function so instead of using Backtrader ibstore to get live data, It use my own data service (its just a simple socket connection that returns IB data for…
SMB H
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