requirements.txt

# Backtest Lab — pinned to the exact versions the suite passes on, resolved
# against Python 3.10, which is what the ZeroGPU Space image provides.
#
# Two pins are dictated by the Space builder rather than by us:
#   * vectorbt 1.1.0 requires Python >=3.11 and cannot install on the ZeroGPU
#     image, so this is pinned to 1.0.0. All 190 tests pass on it.
#   * `spaces` is injected by the ZeroGPU builder itself; pinning it here
#     conflicts with the builder's own version, so it is deliberately absent.

# UI
gradio[oauth]==5.49.1
plotly==6.9.0

# Engine
vectorbt==1.0.0
numpy==2.2.6
pandas==2.3.3
numba==0.67.0
scipy==1.15.3
scikit-learn==1.7.2

# Store
huggingface_hub==1.27.0
pyarrow==25.0.1

# Price providers
ccxt==4.5.64
yfinance==1.6.0
requests==2.34.2

# Forecast adapters. Imported lazily inside ForecastAdapter.load(), so app boot
# never pays for them -- this keeps cold start fast while still letting the
# ZeroGPU extension path work when GPU hardware is attached.
# ZeroGPU only accepts torch 2.11.0 / 2.10.0 / 2.9.1 / 2.8.0.
torch==2.11.0
chronos-forecasting==2.3.1