def sluggify(text):
    """
    Create a file system friendly string from passed text by stripping special characters.
     Use this function to make file names from arbitrary text, like titles
    :param text:
    :return:
    """
    if not text:
        return ''
    data = ''.join([c for c in text if c.isalpha() or c.isdigit() or c in [' ', '.', ',', '_', '-', '=']]).rstrip()
    truncated = data[:75] if len(data) > 75 else data
    return truncated