Egg info filename %s is not valid

Raise code

    egginfo = None
    if egginfo_name:
        egginfo = egg_info_re.search(egginfo_name)
        if not egginfo:
            raise ValueError("Egg info filename %s is not valid" % (egginfo_name,))

    # Parse the wininst filename
    # 1. Distribution name (up to the first '-')
    w_name, sep, rest = wininfo_name.partition('-')
    if not sep: