os.path.join (folder, filename) ensures the path is correct for the system. On Windows, it uses backslashes (reports\summary.txt); on Linux and macOS it uses forward slashes (reports/summary.txt).

Claude Sonnet 4.5 Agentic Coding AI Released By Anthropic 12:43 pm September 30, 2025 By Julian Horsey What if the future of AI wasn’t just about speed or raw power, but about unwavering focus and ...