backtrader.errors module

Exception Classes Module - Custom exceptions for backtrader.

This module defines the exception hierarchy used throughout the backtrader framework.

Classes:

BacktraderError: Base exception for all backtrader exceptions. StrategySkipError: Raised to skip a strategy during optimization. ModuleImportError: Raised when a required module cannot be imported. FromModuleImportError: Raised when a from-style import fails. DataError: Raised for data-feed/parsing problems. BrokerError: Raised for broker/execution problems. OrderError: Raised for order-related problems (subclass of BrokerError). ConfigError: Raised for invalid configuration/parameters.

Example

Raising StrategySkipError during optimization: >>> class MyStrategy(bt.Strategy): … params = ((‘period’, 20),) … … def __init__(self): … if self.p.period < 5: … raise bt.errors.StrategySkipError()

exception backtrader.errors.BacktraderError

Bases: Exception

Base exception for all backtrader exceptions.

exception backtrader.errors.StrategySkipError

Bases: BacktraderError

Requests the platform to skip this strategy for backtesting. To be raised during the initialization (__init__) phase of the instance

exception backtrader.errors.DataError

Bases: BacktraderError

Raised for data-feed problems: loading, parsing, or alignment failures.

exception backtrader.errors.BrokerError

Bases: BacktraderError

Raised for broker/execution problems: cash, margin, or matching failures.

exception backtrader.errors.OrderError

Bases: BrokerError

Raised for order-related problems: invalid size/price or rejected orders.

exception backtrader.errors.ConfigError

Bases: BacktraderError

Raised for invalid configuration or parameter values.