Always preserve and implement thorough error handling that includes proper resource cleanup, meaningful logging, and appropriate return values. Don’t remove existing error handling during code refactoring or simplification.

Key practices:

Preserve error handling during refactoring - When simplifying code, maintain existing try-catch blocks and error recovery logic
Clean up resources on failure - Always free allocated memory, close connections, or reset state when operations fail
Choose appropriate error responses - Return sensible defaults (like False) instead of throwing exceptions when callers can handle the failure gracefully
Log exceptions with context - Include meaningful error messages and context when catching exceptions

Example of proper error handling preservation:

# Good - maintains error handling even when simplifying
try:
    return self.connection.exists_sync(key)
except Exception as e:
    with self.lock:
        self.connection = None
        self.failure_time = time.time()
    logger.warning(f"Remote connection failed in contains: {e}")
    logger.warning("Returning False")
    return False

# Bad - removes error handling during simplification
return self.connection.exists_sync(key)

This approach prevents silent failures, resource leaks, and provides better debugging information when issues occur.

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