spark: line counter artifact with verification

wizard-work/spark/line_count_result.txt

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+18

wizard-work/spark/line_counter_artifact.py

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+#!/usr/bin/env python3
+"""Line counter utility - counts non-empty lines in a file."""
+import sys
+
+def count_nonempty_lines(filepath):
+    """Count lines that have content (not just whitespace)."""
+    count = 0
+    with open(filepath, 'r') as f:
+        for line in f:
+            if line.strip():
+                count += 1
+    return count
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print("Usage: python line_counter_artifact.py <file>")
+        sys.exit(1)
+    
+    filepath = sys.argv[1]
+    result = count_nonempty_lines(filepath)
+    print(result)