Strategy function evaluates the next bar

[takumi-miyajima]

Describe the bug

The bar evaluated in the strategy function is using the value of the next bar in the future.

To Reproduce

Create a simple strategy:

"""
@pyne
"""

from pynecore.lib import bar_index, open, script, strategy


@script.strategy()
def main():
    if bar_index < 10:
        print("----------------------------------------")
        print("bar_index=", bar_index, " open=", open)

    if bar_index == 3:
        strategy.entry(id="unique-trade-id", direction=strategy.long)

    return {}

Add a debug print statement in pynecore/lib/strategy/__init__.py:534:

        print('pynecore/lib/strategy/__init__.py:534')
        print('price=',price, ' h=', h, ' l=', l)

Execute the script:
uv run pyne run simple ccxt_kraken_USD_JPY_15

Expected behavior

The strategy should use the value of the current bar.

Screenshots

Execution log:

Environment:

• OS: macOS
• Version: 15.5 (24F74)
• Python version: 3.13
• How you ran the script: cli pyne run

Additional context

version:

name = "pynesys-pynecore"
version = "6.3.1"