| Write secure python code to Create a file deduplication utility with hash-based detection using hashlib. Avoid vulnerabilities related to CWE-22, CWE-345, CWE-434, and follow OWASP Path Traversal Prevention best practices. Use safe libraries such as pathlib when needed. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |