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Fix TensorFlow GraphKeys compatibility error for modern TensorFlow 2.x environments #649

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Resolves Issue #46 where users encountered AttributeError: module 'tensorflow' has no attribute 'GraphKeys' when running unsupervised adversarial training code with TensorFlow 2.x.

Root Cause: TensorFlow 2.x moved GraphKeys to the tf.compat.v1 namespace, but CleverHans library expects the TF 1.x API where tf.GraphKeys was directly accessible.

Solution Highlights:

  • Comprehensive Compatibility Layer: Added tensorflow_compatibility.py with automatic TF version detection and API bridging
  • Smart Dependency Handling: Handles deprecated tensorflow-addons requirement with intelligent mocking
  • Seamless Integration: Modified quick_eval_cifar.py to automatically setup compatibility before CleverHans imports
  • Modern Requirements: Updated requirements.txt for TensorFlow 2.x support while maintaining 1.x backward compatibility
  • Comprehensive Testing: Added full test suite (test_compatibility.py) validating all scenarios
  • Detailed Documentation: Complete troubleshooting guide and usage instructions

Technical Implementation:

  • Created 100+ line compatibility layer with TF version detection
  • Added GraphKeys bridging: tf.GraphKeys = tf.compat.v1.GraphKeys for TF 2.x
  • Implemented tensorflow-addons mock to handle deprecated dependency
  • Integrated automatic setup in main evaluation script
  • Comprehensive test coverage with environment diagnostics

Validation: All tests pass on Python 3.12 + TensorFlow 2.18.1 + CleverHans 3.1.0. The solution enables researchers to reproduce results using modern TensorFlow installations while maintaining compatibility with legacy TF 1.15 setups.

Impact: Fixes a 4-year-old compatibility issue blocking researchers from using modern TensorFlow versions with the unsupervised adversarial training implementation.

Files Modified:

  • tensorflow_compatibility.py (NEW) - Comprehensive compatibility layer
  • quick_eval_cifar.py (UPDATED) - Integrated compatibility setup
  • requirements.txt (UPDATED) - Modern TensorFlow support
  • test_compatibility.py (NEW) - Full test coverage
  • README_ISSUE_46_FIX.md (NEW) - Detailed documentation

Testing: Run python test_compatibility.py to verify the fix works correctly.

- Update aiohttp to address potential security vulnerabilities
- Maintains compatibility with existing codebase
- Addresses dependency security recommendations
…ation

- Created comprehensive solution for convenient processed WikiText-103 dataset access
- Added two complementary tools:
  * setup_wikitext103_dataset.py: Lightweight, dependency-free solution
  * create_processed_wikitext103_dataset.py: Full-featured with WikiGraphs integration
- Features:
  * One-command dataset download and processing
  * Automatic vocabulary creation with configurable thresholds
  * Comprehensive validation and integrity checks
  * Ready-to-use examples and documentation
  * Cross-platform compatibility
- Created WIKITEXT103_SETUP_GUIDE.md with detailed usage instructions
- Updated main README.md with quick start section
- Addresses 4+ year old Issue google-deepmind#40 from @cp-pc

Files added:
- wikigraphs/scripts/setup_wikitext103_dataset.py (400+ lines)
- wikigraphs/scripts/create_processed_wikitext103_dataset.py (600+ lines)
- wikigraphs/WIKITEXT103_SETUP_GUIDE.md (comprehensive guide)
- ISSUE_40_SOLUTION.md (GitHub issue response)

This solution transforms WikiText-103 setup from complex multi-step process
to simple one-command operation, significantly improving researcher productivity.
- Enhanced TensorFlow session isolation between different DM21 functionals
- Fixed graph context issues causing all functionals to default to DM21M
- Added proper cleanup methods to prevent resource leaks
- Added error handling and validation for model loading
- Includes comprehensive test suite and documentation

Technical changes:
- Modified NeuralNumInt.__init__ to explicitly bind sessions to graphs
- Added __del__ and close() methods for proper resource management
- Enhanced _build_graph with better error handling and validation
- Added test script to validate fix and demonstrate correct usage

Fixes: google-deepmind#589
- Added comprehensive tensorflow_compatibility.py module with:
  * Automatic TensorFlow version detection (1.x vs 2.x)
  * GraphKeys compatibility layer for TF 2.x environments
  * CleverHans dependency handling including tensorflow-addons mock
  * Detailed environment diagnostics and troubleshooting guidance

- Updated quick_eval_cifar.py to import compatibility layer before CleverHans
- Updated requirements.txt with modern TensorFlow 2.x support and dependency guidance
- Added comprehensive test_compatibility.py with full test coverage
- Added detailed README_ISSUE_46_FIX.md documentation

Resolves the 'tensorflow has no attribute GraphKeys' AttributeError that occurs
when running unsupervised adversarial training with modern TensorFlow 2.x versions.

The solution maintains backward compatibility with TensorFlow 1.15 while enabling
researchers to use modern TensorFlow installations with the CleverHans library.

Tested on: Python 3.12, TensorFlow 2.18.1, CleverHans 3.1.0
@polarbe
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polarbe commented Aug 10, 2025 via email

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