Backtest Lab v1.0.0

README.md

@@ -5,7 +5,6 @@ colorFrom: yellow
 colorTo: gray
 sdk: gradio
 sdk_version: 5.49.1
-python_version: "3.11"
 app_file: app.py
 pinned: true
 license: apache-2.0
@@ -150,7 +149,7 @@ link — the store is public, so a duplicate reads the same data.
 ## Running locally
 
 ```bash
-uv venv --python 3.11 && uv pip install -r requirements.txt
+uv venv --python 3.10 && uv pip install -r requirements.txt
 python app.py
 ```
 

requirements.txt

@@ -1,34 +1,36 @@
-# Backtest Lab — pinned. Every version here is the one the test suite passes on.
+# 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==1.1.0
-numpy==2.4.6
+vectorbt==1.0.0
+numpy==2.2.6
 pandas==2.3.3
 numba==0.67.0
-scipy==1.17.1
-scikit-learn==1.9.0
+scipy==1.15.3
+scikit-learn==1.7.2
 
 # Store
 huggingface_hub==1.27.0
 pyarrow==25.0.1
 
 # Price providers
-ccxt==4.5.73
+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 on cpu-basic while still
-# letting the ZeroGPU extension path work when GPU hardware is attached.
-# ZeroGPU only accepts specific torch builds (2.11.0 / 2.10.0 / 2.9.1 / 2.8.0);
-# pinning outside that set puts the Space into CONFIG_ERROR.
+# 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
-
-# ZeroGPU runtime. Absent locally and on cpu-basic; extension.py degrades to a
-# "coming soon" state when it cannot be imported.
-spaces==0.44.1