Print the informations from installed distributions found.

def print_results(distributions, list_files=False, verbose=False):
    """
    Print the informations from installed distributions found.
    """
    results_printed = False
    for i, dist in enumerate(distributions):
        results_printed = True
        if i > 0:
            logger.info("---")

        name = dist.get('name', '')
        required_by = [
            pkg.project_name for pkg in pkg_resources.working_set
            if name in [required.name for required in pkg.requires()]
        ]

        logger.info("Name: %s", name)
        logger.info("Version: %s", dist.get('version', ''))
        logger.info("Summary: %s", dist.get('summary', ''))
        logger.info("Home-page: %s", dist.get('home-page', ''))
        logger.info("Author: %s", dist.get('author', ''))
        logger.info("Author-email: %s", dist.get('author-email', ''))
        logger.info("License: %s", dist.get('license', ''))
        logger.info("Location: %s", dist.get('location', ''))
        logger.info("Requires: %s", ', '.join(dist.get('requires', [])))
        logger.info("Required-by: %s", ', '.join(required_by))

        if verbose:
            logger.info("Metadata-Version: %s",
                        dist.get('metadata-version', ''))
            logger.info("Installer: %s", dist.get('installer', ''))
            logger.info("Classifiers:")
            for classifier in dist.get('classifiers', []):
                logger.info("  %s", classifier)
            logger.info("Entry-points:")
            for entry in dist.get('entry_points', []):
                logger.info("  %s", entry.strip())
        if list_files:
            logger.info("Files:")
            for line in dist.get('files', []):
                logger.info("  %s", line.strip())
            if "files" not in dist:
                logger.info("Cannot locate installed-files.txt")
    return results_printed