## 3. version_check.py

#```python
#!/usr/bin/env python3
"""
Version and compatibility check for DeepSeek-V3.1-4bit model
"""

import argparse
import logging
import sys
from pathlib import Path
import importlib.metadata

logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
logger = logging.getLogger(__name__)

def check_package_version(package_name, min_version=None):
    """Check if a package is installed and meets version requirements"""
    try:
        version = importlib.metadata.version(package_name)
        status = "✅"
        if min_version and version < min_version:
            status = "⚠️"
        logger.info(f"{status} {package_name}: {version} {'(>= ' + min_version + ')' if min_version else ''}")
        return version
    except importlib.metadata.PackageNotFoundError:
        logger.error(f"❌ {package_name}: Not installed")
        return None

def check_system_requirements():
    """Check system requirements for running the model"""
    logger.info("=" * 50)
    logger.info("🖥️ System Requirements Check")
    logger.info("=" * 50)
    
    # Check Python version
    python_version = sys.version.split()[0]
    logger.info(f"✅ Python: {python_version}")
    
    # Check required packages
    required_packages = [
        ("transformers", "4.35.0"),
        ("huggingface-hub", "0.16.0"),
        ("mlx", "0.0.6"),
        ("numpy", "1.21.0"),
        ("torch", "2.0.0"),
    ]
    
    for package, min_version in required_packages:
        check_package_version(package, min_version)
    
    # Check optional packages
    logger.info("\n📦 Optional Packages:")
    optional_packages = [
        "accelerate",
        "safetensors",
        "tokenizers",
    ]
    
    for package in optional_packages:
        check_package_version(package)

def check_model_compatibility(model_path):
    """Check if the model files are compatible with MLX"""
    logger.info("\n" + "=" * 50)
    logger.info("🔍 Model Compatibility Check")
    logger.info("=" * 50)
    
    model_dir = Path(model_path)
    
    # Check for required files
    required_files = [
        "config.json",
        "tokenizer.json",
        "tokenizer_config.json",
    ]
    
    weight_files = [
        "model.safetensors",
        "model.npz",
        "*.gguf",
        "*.mlx"
    ]
    
    logger.info("📁 Required Files:")
    missing_files = []
    for file in required_files:
        if (model_dir / file).exists():
            logger.info(f"✅ {file}")
        else:
            logger.info(f"❌ {file}")
            missing_files.append(file)
    
    logger.info("\n📦 Weight Files:")
    found_weights = False
    for pattern in weight_files:
        for file in model_dir.glob(pattern):
            size_mb = file.stat().st_size / (1024 * 1024)
            logger.info(f"✅ {file.name} ({size_mb:.1f} MB)")
            found_weights = True
    
    if not found_weights:
        logger.error("❌ No weight files found!")
        return False
    
    if missing_files:
        logger.warning(f"⚠️ Missing {len(missing_files)} required files")
        return False
    
    return True

def main():
    parser = argparse.ArgumentParser(description="Check version and compatibility for DeepSeek-V3.1-4bit")
    parser.add_argument("--model-path", type=str, default="./deepseek_v3_4bit",
                       help="Path to the downloaded model")
    
    args = parser.parse_args()
    
    # Check system requirements
    check_system_requirements()
    
    # Check model compatibility if path exists
    if Path(args.model_path).exists():
        check_model_compatibility(args.model_path)
    else:
        logger.warning(f"Model path does not exist: {args.model_path}")
        logger.info("Run download script first: python download_deepseek_v3_4bit.py")
    
    logger.info("\n💡 Recommendations:")
    logger.info("   - Ensure you have at least 40GB free disk space")
    logger.info("   - For inference, recommend 64GB+ RAM")
    logger.info("   - Use Apple Silicon (M1/M2/M3) for best performance")
    
    return 0

if __name__ == "__main__":
    exit(main())
#```