Learn how masked self-attention works by building it step by step in Python—a clear and practical introduction to a core concept in transformers.

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).

The Confucius cyber-espionage group has shifted its tactics from document-focused stealers to Python-based backdoors like ...