def get_installed_pypackages():
    return {p.project_name.lower(): p for p in pkg_resources.working_set}
def open_pager(self):
        "Open the selected item with the system's pager"
        data = self.get_selected_item()
        if data['type'] == 'Submission':
            text = '\n\n'.join((data['permalink'], data['text']))
            self.term.open_pager(text)
        elif data['type'] == 'Comment':
            text = '\n\n'.join((data['permalink'], data['body']))
            self.term.open_pager(text)
        else:
            self.term.flash()