read from one file and write to another file line by line until end of file

def copy_file(input_file, output_file):
    """
    This function copies the content of one file to another.
    
    Args:
        input_file: file to copy from
        output_file: file to write to
    """
    with open(input_file, 'r') as in_file, open(output_file, 'w') as out_file:
        for line in in_file:
            out_file.write(line)