def gen_name(prefix='', suffix=''):
    """
    Generate simple "random" name

    Parameters
    ----------
    prefix : string, optional
        Prefix of the name
    suffix : string, optional
        Suffix of the name

    Returns
    -------
    string

    """
    out = ''
    numbers = '0123456789'
    letters = 'abcdefghijklmnopqrstuvwxyz'
    chars = numbers + letters
    value = id(eval('{}'))
    value, i = divmod(value, len(letters))
    out = letters[i] + out
    while value:
        value, i = divmod(value, len(chars))
        out = chars[i] + out
    return '%s%s%s' % (prefix, ''.join(reversed(out)), suffix)
