Python 3.13 Support and Dependency Cleanup

[Al4ise]

Description by Korbit AI

What change is being made?

Eliminate the need for the Trader class in strategy execution by substituting its usage with the strategy.run_live() method, and update the requirements.txt and setup.py to reflect version updates and cleanup unused packages.

Why are these changes being made?

The simplification of strategy execution by directly running strategies with strategy.run_live() reduces complexity and improves code readability. This also aligns with modern best practices for live strategy execution, ensuring the codebase is more maintainable. Updating the dependencies in requirements.txt and setup.py ensures compatibility with new package versions, removes unused packages, and optimizes dependency management.

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[korbit-ai]

Review Summary by Korbit AI

Code Execution Comments

• Address version constraints for dependencies: add constraint for exchange_calendars and relax ibapi pinning for updates.

Files scanned

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File Path	Reviewed
lumibot/example_strategies/simple_start_single_file.py	✅
lumibot/example_strategies/lifecycle_logger.py	✅
lumibot/example_strategies/forex_hold_to_expiry.py	✅
lumibot/example_strategies/stock_bracket.py	✅
lumibot/example_strategies/futures_hold_to_expiry.py	✅
setup.py	✅
lumibot/example_strategies/stock_oco.py	✅
lumibot/example_strategies/stock_buy_and_hold.py	✅
lumibot/example_strategies/options_hold_to_expiry.py	✅
lumibot/example_strategies/stock_limit_and_trailing_stops.py	✅
lumibot/example_strategies/stock_diversified_leverage.py	✅
lumibot/example_strategies/crypto_important_functions.py	✅
lumibot/example_strategies/stock_momentum.py	✅
lumibot/credentials.py	✅
lumibot/example_strategies/strangle.py	✅

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[korbit-ai]

Missing Version Constraint for Critical Trading Calendar Dependency

Tell me more

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What is the issue?
The exchange_calendars dependency is missing a version constraint, which could lead to compatibility issues with future versions.

Why this matters
Without version constraints, automatic updates could introduce breaking changes that affect trading calendar functionality and market hours calculations.

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[korbit-ai]

Overly Restrictive IBAPI Version Pinning

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What is the issue?
The strict version pinning of ibapi could prevent important security and functionality updates.

Why this matters
Interactive Brokers API updates often include critical fixes and improvements for order execution and market data. Being locked to a specific version could miss these important updates.

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