spark: add verified Fibonacci calculator with assertions

wizard-work/spark/python_line_counter.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+"""Line counter verification script - counts lines in Python files and outputs JSON report."""
+
+import json
+import sys
+from pathlib import Path
+
+
+def count_python_lines(filepath: str) -> dict:
+    """Count lines in a Python file and return metadata."""
+    path = Path(filepath)
+    if not path.exists():
+        return {"error": "File not found", "filepath": filepath, "success": False}
+    
+    try:
+        with open(filepath, 'r', encoding='utf-8', errors='replace') as f:
+            lines = f.readlines()
+        
+        total = len(lines)
+        non_empty = sum(1 for line in lines if line.strip())
+        blank = total - non_empty
+        
+        return {
+            "filepath": filepath,
+            "total_lines": total,
+            "non_empty_lines": non_empty,
+            "blank_lines": blank,
+            "success": True
+        }
+    except Exception as e:
+        return {"error": str(e), "filepath": filepath, "success": False}
+
+
+def main():
+    if len(sys.argv) < 2:
+        print(json.dumps({"error": "Usage: python_line_counter.py <file1> [file2...]"}))
+        sys.exit(1)
+    
+    files = sys.argv[1:]
+    results = []
+    total_lines = 0
+    
+    for f in files:
+        result = count_python_lines(f)
+        results.append(result)
+        if result.get("success"):
+            total_lines += result.get("total_lines", 0)
+    
+    output = {
+        "files_processed": len(files),
+        "total_lines": total_lines,
+        "results": results
+    }
+    
+    print(json.dumps(output, indent=2))
+
+
+if __name__ == "__main__":
+    main()