#!/usr/bin/env python3
import sys
import io

def main():
    if len(sys.argv) != 2:
        print(f"Usage: {sys.argv[0]} <topic>")
        sys.exit(1)

    topic = sys.argv[1]
    
    # Capture the output of the help function
    captured_output = io.StringIO()
    sys.stdout = captured_output
    try:
        help(topic)
    except Exception as e:
        print(f"Error: {e}")
    finally:
        sys.stdout = sys.__stdout__

    # Print the captured output
    print(captured_output.getvalue())

if __name__ == "__main__":
    main()