def ipkg_meta_from_pkg(pkg):
    """Return meta dict for Installed pkg from a PackageDescription
    instance."""
    meta = {}
    for m in ['name', 'version', 'summary', 'url', 'author', 'author_email',
        'license', 'download_url', 'description', 'platforms',
        'classifiers', 'install_requires', 'top_levels']:
        meta[m] = getattr(pkg, m)
    return meta
