import logging
import sys

def setup_logger(name):
    """
    Set up a logger with consistent formatting and settings
    
    Args:
        name (str): The name for the logger, typically __name__
        
    Returns:
        logging.Logger: Configured logger instance
    """
    logger = logging.getLogger(name)
    
    # Only configure handlers if they don't exist
    if not logger.handlers:
        # Console handler
        console_handler = logging.StreamHandler(sys.stdout)
        console_format = logging.Formatter(
            '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
        )
        console_handler.setFormatter(console_format)
        logger.addHandler(console_handler)
        
        # Set level - could be read from environment variables
        logger.setLevel(logging.INFO)
        
        # Prevent propagation to root logger to avoid duplicate logs
        logger.propagate = False
    
    return logger