There are 2 repositories under backtester-python topic.
A high-frequency trading model using Interactive Brokers API with pairs and mean-reversion in Python
algo trading backtesting on BitMEX
BakTst_Org is a backtesting system for quantitative transactions.
Backtest and run stock trading CFD strategies tick by tick
You can do Backtest for indicators of Tradingview using this python script.
Python Equity Backtester / Market Simulator
Python Backtesting infrastructure for trading strategies + Dashboard
A web application for backtesting rebalancing stock strategies in the nordic stock markets and sharing strategies with other users.