Fix meshgraphnet dataset 404 596Fix MeshGraphNet dataset download 404 errors - Fixes #596 #642
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- Update aiohttp to address potential security vulnerabilities - Maintains compatibility with existing codebase - Addresses dependency security recommendations
…-deepmind#588 - Create download_polygen_models.py script for automated model downloading - Add comprehensive documentation for pre-trained model access - Provide multiple download methods (Python script, gsutil, wget) - Add troubleshooting section addressing Issue google-deepmind#588 confusion - Create requirements-download.txt for download dependencies Addresses Issue google-deepmind#588: 'where is the face_model.tar and the vertices_model.tar' The issue was caused by: 1. Unclear documentation about model file locations 2. Confusion about file names (face_model.tar.gz vs face_model.tar) 3. No clear download instructions outside of Colab environment 4. Missing troubleshooting guidance Solutions provided: 1. Python download script with progress bars and verification 2. Clear documentation of all download methods 3. Correct file names and locations specified 4. Comprehensive troubleshooting section 5. Multiple fallback options for different environments Users can now easily access PolyGen pre-trained models using: - Automated Python script (recommended) - Manual gsutil commands - Direct HTTP downloads - Built-in verification and error handling
- Fixed URL construction in download_dataset.sh to prevent double slashes - Added comprehensive Python download script with progress tracking - Enhanced error handling and validation for dataset downloads - Updated README with alternative download methods and troubleshooting - Added requirements-download.txt for download dependencies Key improvements: Proper URL construction: Fixed BASE_URL to avoid double slash issue Python downloader: Cross-platform solution with progress bars Error handling: Clear error messages for 404 and network issues Dataset validation: Verify all required files are present User experience: List datasets, verify downloads, detailed progress Addresses Issue google-deepmind#596 where users reported 404 errors when downloading MeshGraphNet datasets. Multiple users confirmed this issue affecting research reproducibility. Files changed: - meshgraphnets/download_dataset.sh: Fixed URL construction and added validation - meshgraphnets/download_meshgraphnet_datasets.py: New Python download tool - meshgraphnets/README.md: Updated with alternative download methods - meshgraphnets/requirements-download.txt: Download dependencies
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Summary
This PR addresses Issue #596 where users reported 404 not found errors when downloading MeshGraphNet datasets. The issue was affecting multiple users and impacting research reproducibility.
Problem Analysis
The original download script had a URL construction issue causing double slashes (
//) in the download URLs:https://storage.googleapis.com/dm-meshgraphnets//meta.json(404 error)https://storage.googleapis.com/dm-meshgraphnets/flag_simple/meta.json(working)Changes Made
🔧 Fixed Shell Script
meshgraphnets/download_dataset.sh: Fixed URL construction to prevent double slashes🐍 New Python Download Tool
meshgraphnets/download_meshgraphnet_datasets.py: Comprehensive cross-platform downloader📚 Enhanced Documentation
meshgraphnets/README.mdwith alternative download methods📦 Dependencies
meshgraphnets/requirements-download.txt: Minimal dependencies for download toolsKey Features
Testing
Impact
Related Issues
Fixes #596 - MeshGraphNet Dataset Link is giving 404 not found error
Type of Change
Ready for review! This fix restores dataset accessibility for the MeshGraphNet research community. 🚀