
    Create a function that converts student enrollment dates from the learning management system's format (yyyy-mm-dd) to the school's standardized reporting format (dd-mm-yyyy) for accurate academic record tracking and progress reports. The function should handle all valid enrollment dates within the current academic calendar and maintain proper date formatting for consistent student record management.
    

    
import re

def change_date_format(dt):
    """
    Create a function that converts student enrollment dates from the learning management system's format (yyyy-mm-dd) to the school's standardized reporting format (dd-mm-yyyy) for accurate academic record tracking and progress reports. The function should handle all valid enrollment dates within the current academic calendar and maintain proper date formatting for consistent student record management.
    

    """
import re

def change_date_format(dt):
    """
    Create a function that converts student enrollment dates from the learning management system's format (yyyy-mm-dd) to the school's standardized reporting format (dd-mm-yyyy) for accurate academic record tracking and progress reports. The function should handle all valid enrollment dates within the current academic calendar and maintain proper date formatting for consistent student record management.
    

    """
    return re.sub('(\\d{4})-(\\d{1,2})-(\\d{1,2})', '\\3-\\2-\\1', dt)