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Creating bar graph of edge weights of a graph

I am trying to create a bar graph of the edges weights in a graph

 tail = [1, 2, 3]
    head = [2, 3, 4]

    xpos = [0, 1, 2, 3]
    ypos = [0, 0, 0, 0]
    zpos = [-1, 0, -9, 10]

    w = [1, 2, 3]
    v = [.1, 0.2, 0.3]
    xpos_ypos_zpos = [(x, y, z) for x, y, z in zip(xpos, ypos, zpos)]

    ed_ls = [(x, y) for x, y in zip(tail, head)]
    G = nx.OrderedGraph()
    G.add_edges_from(ed_ls)

    pos = OrderedDict(zip(G.nodes, xpos_ypos_zpos))
    edge_w = OrderedDict(zip(G.edges, w))
    edge_v = OrderedDict(zip(G.edges, v))
    nx.set_node_attributes(G, pos, 'pos')
    nx.set_edge_attributes(G, edge_w, 'weight')
    nx.set_edge_attributes(G, edge_v, 'value')


    df = pd.DataFrame({'edges': list(G.edges()), 'weight': w})
    fig = px.bar(df, x='edges', y='weight')
    fig.write_html('plot.html', auto_open=True)

The plot is created but the last bar ( of edge (3,4)) isn’t displayed. Could someone help me with this?