Driving Results and Customer Impact Questions

#!/usr/bin/env python3
import sys
from collections import Counter

def stream_top_errors(path, top_n=10):
    counts = Counter()
    with open(path, 'r', encoding='utf-8') as f:
        for line in f:
            # expected format: "timestamp level component message"
            parts = line.strip().split(None, 3)
            if len(parts) < 3:
                continue
            _, level, component = parts[:3]
            if level.upper() == 'ERROR':
                counts[component] += 1
    # most_common returns ordered list
    return counts.most_common(top_n)

if __name__ == '__main__':
    if len(sys.argv) != 2:
        print("Usage: top_errors.py /path/to/logfile")
        sys.exit(2)
    results = stream_top_errors(sys.argv[1])
    for comp, cnt in results:
        print(f"{comp}\t{cnt}")