`ta.sma()` crashes on Linux with `TypeError: sum() missing 1 required positional argument` — works on Windows

[vive1101011]

ta.sma() raises a TypeError on Linux/Ubuntu but runs successfully on Windows. The call to lib_math.sum(source, length) inside ta.sma() appears to resolve to Python's built-in sum() on Linux, which only accepts one required argument, causing the crash.

To Reproduce

1. Clone the repository (or download zip) and set up the environment:

   uv sync

2. Download sample data:

   uv run pyne data download ccxt --symbol "BYBIT:BTC/USDT:USDT"

3. Run the debug script against the downloaded .ohlcv file:

   uv run debug_pynesys.py workdir/data/demo.ohlcv

4. Observe the TypeError traceback.

Expected behavior
Script v6.5.0 should complete successfully and output a CSV file, as it does on Windows:
Versions prior to v6.5.0 are functioning normally and behaving as expected.

steps_to_reproduce.zip

[wallneradam]

Thanks for the detailed report! Root cause found and fixed — it'll be in the next release within a few days.