seams 0.1.2

High-throughput sentence extractor for Project Gutenberg texts with dialog-aware detection
Documentation 
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"""
Python benchmark using pysbd for sentence segmentation comparison with seams.
Follows equivalent processing pipeline for fair comparison.
"""

import os
import sys
import time
import json
import glob
from pathlib import Path
from typing import List, Dict, Any
import argparse

try:
    import pysbd
except ImportError:
    print("ERROR: pysbd not installed. Run: pip install pysbd")
    sys.exit(1)

def discover_files(root_dir: str) -> List[str]:
    """Discover all *-0.txt files, matching seams file discovery pattern."""
    pattern = os.path.join(root_dir, "**/*-0.txt")
    return glob.glob(pattern, recursive=True)

def process_file_with_pysbd(file_path: str) -> Dict[str, Any]:
    """Process a single file with pysbd sentence segmentation."""
    start_time = time.time()
    
    try:
        with open(file_path, 'r', encoding='utf-8') as f:
            content = f.read()
        
        # Initialize pysbd segmenter
        segmenter = pysbd.Segmenter(language="en", clean=False)
        
        # Segment sentences
        sentences = segmenter.segment(content)
        
        # Calculate basic stats
        chars_processed = len(content)
        sentence_count = len(sentences)
        processing_time = time.time() - start_time
        
        return {
            "file_path": file_path,
            "chars_processed": chars_processed,
            "sentence_count": sentence_count,
            "processing_time_ms": processing_time * 1000,
            "throughput_chars_per_sec": chars_processed / processing_time if processing_time > 0 else 0,
            "success": True,
            "sentences": sentences[:5] if len(sentences) > 5 else sentences  # Sample for accuracy comparison
        }
    except Exception as e:
        return {
            "file_path": file_path,
            "error": str(e),
            "success": False,
            "processing_time_ms": (time.time() - start_time) * 1000
        }

def main():
    parser = argparse.ArgumentParser(description="Python pysbd benchmark for sentence segmentation")
    parser.add_argument("root_dir", help="Root directory to process")
    parser.add_argument("--stats_out", default="python_pysbd_stats.json", help="Output stats file")
    parser.add_argument("--max_files", type=int, help="Maximum number of files to process (for testing)")
    
    args = parser.parse_args()
    
    if not os.path.exists(args.root_dir):
        print(f"ERROR: Directory {args.root_dir} does not exist")
        sys.exit(1)
    
    # Discover files
    print(f"Discovering files in {args.root_dir}...")
    files = discover_files(args.root_dir)
    
    if args.max_files:
        files = files[:args.max_files]
    
    print(f"Found {len(files)} files to process")
    
    if not files:
        print("No files found matching pattern **/*-0.txt")
        sys.exit(1)
    
    # Process files
    results = []
    total_chars = 0
    total_sentences = 0
    successful_files = 0
    failed_files = 0
    
    benchmark_start = time.time()
    
    for i, file_path in enumerate(files):
        print(f"Processing [{i+1}/{len(files)}]: {os.path.basename(file_path)}")
        
        result = process_file_with_pysbd(file_path)
        results.append(result)
        
        if result["success"]:
            total_chars += result["chars_processed"]
            total_sentences += result["sentence_count"]
            successful_files += 1
        else:
            failed_files += 1
            print(f"  ERROR: {result['error']}")
    
    total_time = time.time() - benchmark_start
    
    # Calculate aggregate stats
    stats = {
        "tool": "pysbd",
        "version": pysbd.__version__,
        "total_files": len(files),
        "successful_files": successful_files,
        "failed_files": failed_files,
        "total_chars_processed": total_chars,
        "total_sentences": total_sentences,
        "total_time_ms": total_time * 1000,
        "aggregate_throughput_chars_per_sec": total_chars / total_time if total_time > 0 else 0,
        "aggregate_throughput_mb_per_sec": (total_chars / total_time) / (1024 * 1024) if total_time > 0 else 0,
        "results": results
    }
    
    # Write stats
    with open(args.stats_out, 'w') as f:
        json.dump(stats, f, indent=2)
    
    print(f"\n=== pysbd Benchmark Results ===")
    print(f"Files processed: {successful_files}/{len(files)}")
    print(f"Total characters: {total_chars:,}")
    print(f"Total sentences: {total_sentences:,}")
    print(f"Total time: {total_time:.2f}s")
    print(f"Throughput: {stats['aggregate_throughput_chars_per_sec']:.1f} chars/sec")
    print(f"Throughput: {stats['aggregate_throughput_mb_per_sec']:.2f} MB/sec")
    print(f"Stats written to: {args.stats_out}")

if __name__ == "__main__":
    main()