Switch to Docker SDK for full control over dependencies

Dockerfile

@@ -0,0 +1,29 @@
+# Dockerfile for HuggingFace Spaces (Docker SDK)
+FROM python:3.10-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    nauty \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements first (for caching)
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application
+COPY . .
+
+# Install the package itself
+RUN pip install --no-cache-dir -e .
+
+# Expose port 7860 (HF Spaces default)
+EXPOSE 7860
+
+# Run the app
+CMD ["python", "app.py"]

README.md

@@ -3,9 +3,7 @@ title: Ideal Polyhedron Volume Toolkit
 emoji: 🔺
 colorFrom: blue
 colorTo: purple
-sdk: gradio
-sdk_version: 5.6.0
-app_file: app.py
+sdk: docker
 pinned: false
 license: mit
 ---

app.py

@@ -41,7 +41,7 @@ except Exception as e:
         gr.Markdown("# Error Loading Application")
         gr.Markdown(f"```\n{error_msg}\n```")
 
-# HuggingFace Spaces will call demo.launch() automatically,
-# but we can also run this directly for testing
+# For Docker SDK on HF Spaces, we must explicitly launch
+# with server_name="0.0.0.0" to bind to all interfaces
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(server_name="0.0.0.0", server_port=7860)

requirements.txt

@@ -8,4 +8,4 @@ plotly>=5.0
 Pillow>=9.0
 pynauty>=2.0
 gradio==5.6.0
-huggingface_hub==0.24.0
+huggingface_hub>=0.25.1