human
Give me a the Python program you requested given the following:
Complete the below
def eclean_pkg(destructive=False, package_names=False, time_limit=0, exclude_file='/etc/eclean/packages.exclude'):

    ''''Clean obsolete binary packages
    destructive
    Only keep minimum for reinstallation
    package_names
    Protect all versions of installed packages. Only meaningful if used
    with destructive=True
    time_limit <time>
    Don\'t delete distfiles files modified since <time>
    <time> is an amount of time: "1y" is "one year", "2w" is
    "two weeks", etc. Units are: y (years), m (months), w (weeks),
    d (days) and h (hours).
    exclude_file
    Path to exclusion file. Default is /etc/eclean/packages.exclude
    This is the same default eclean-pkg uses. Use None if this file
    exists and you want to ignore.
    Returns a dict containing the cleaned binary packages:
    .. code-block:: python
    {\'cleaned\': {<dist file>: <size>},
    \'total_cleaned\': <size>}
    CLI Example:
    .. code-block:: bash
    salt \'*\' gentoolkit.eclean_pkg destructive=True'
    '''
assistant
#Here is the Python program you requested.
    if (exclude_file is None):
        exclude = None
    else:
        try:
            exclude = _parse_exclude(exclude_file)
        except excludemod.ParseExcludeFileException as e:
            ret = {e: 'Invalid    exclusion    file:    {0}'.format(exclude_file)}
            return ret
    if (time_limit != 0):
        time_limit = cli.parseTime(time_limit)
    clean_size = 0
    clean_me = search.findPackages(None, destructive=destructive, package_names=package_names, time_limit=time_limit, exclude=exclude, pkgdir=search.pkgdir)
    cleaned = dict()
    def _eclean_progress_controller(size, key, *args):
        cleaned[key] = _pretty_size(size)
        return True
    if clean_me:
        cleaner = clean.CleanUp(_eclean_progress_controller)
        clean_size = cleaner.clean_pkgs(clean_me, search.pkgdir)
    ret = {'cleaned': cleaned, 'total_cleaned': _pretty_size(clean_size)}
    return ret