def session_draw_bis(sessions_id, weblog, weblog_columns_dict):
    """
    Draw the graph of sessions with sessions_id given in entry
    """
    from graph_tool.all import Graph
    from graph_tool.all import graph_draw
    session = weblog[weblog.session_id == sessions_id]
    session = session.rename(index=str, columns={weblog_columns_dict[
        'requested_page_column']: 'requested_page', weblog_columns_dict[
        'referrer_page_column']: 'referrer_page'})
    s_pages = session['requested_page']
    s_pages_ref = session['referrer_page']
    s_pages = s_pages.append(s_pages_ref)
    s_pages.drop_duplicates(inplace=True)
    g = Graph()
    v = {}
    for page in s_pages.values:
        v[page] = g.add_vertex()
    session.apply(lambda x: g.add_edge(v[x.referrer_page], v[x.
        requested_page]), axis=1)
    graph_draw(g, output='../graph_dump/_session' + str(sessions_id) + '.png')
    return
