import plotly.graph_objects as go

def bar_chart_with_error_bars():
    # Trace C
    trace_c = go.Bar(
        x=["Trial 1", "Trial 2", "Trial 3"],
        y=[3, 6, 4],
        name="Trace C",
        error_y=dict(
            type="data",
            array=[1, 0.5, 1.5]
        )
    )

    # Trace E (secondary y-axis)
    trace_e = go.Bar(
        x=["Trial 1", "Trial 2", "Trial 3"],
        y=[400, 700, 300],
        name="Trace E",
        yaxis="y2",
        error_y=dict(
            type="data",
            array=[50, 100, 200]
        )
    )

    # Layout
    layout = go.Layout(
        barmode="group",
        yaxis=dict(title="Trace C"),
        yaxis2=dict(
            title="Trace E",
            overlaying="y",
            side="right"
        )
    )

    # Create figure
    fig = go.Figure(data=[trace_c, trace_e], layout=layout)

    # Save to HTML
    fig.write_html("/tmp/trials.html")


# Call the function
bar_chart_with_error_bars()