make_barpolar.py

import plotly.graph_objects as go
import plotly.express as px


def make_barpolar(vals, labels=None, colors=None, layout_options = None, **fig_kwargs):
    # infer slice angles
    num_slices = len(vals)
    theta = [(i + 1.5) * 360 / num_slices for i in range(num_slices)]
    width = [360 / num_slices for _ in range(num_slices)]
    
    # optionally infer colors
    if colors is None:
        color_seq = px.colors.qualitative.Safe
        color_indices = range(0, len(color_seq), len(color_seq) // num_slices)
        colors = [color_seq[i] for i in color_indices]

    if layout_options is None:
        layout_options = {}

    if labels is None:
        labels = ["" for _ in range(num_slices)]
        layout_options["showlegend"] = False

    # make figure
    barpolar_plots = [go.Barpolar(r=[r], theta=[t], width=[w], name=n, marker_color=[c], **fig_kwargs)
                      for r, t, w, n, c in zip(vals, theta, width, labels, colors)]
    
    fig = go.Figure(barpolar_plots)

    # align background
    angular_tickvals = [(i + 1) * 360 / num_slices for i in range(num_slices)]
    fig.update_layout(polar_angularaxis_tickvals=angular_tickvals)
    
    # additional layout parameters
    fig.update_layout(**layout_options)
    
    return fig


layout_options = {"title": "My Stats",
                  "title_font_size": 24,
                  "title_x": 0.5,
                  "legend_x": 0.85,
                  "legend_y": 0.5,
                  "polar_radialaxis_ticks": "",
                  "polar_radialaxis_showticklabels": False,
                  "polar_radialaxis_range": [0, max(vals)],
                  "polar_angularaxis_ticks": "",
                  "polar_angularaxis_showticklabels": False}

fig = make_barpolar(vals, labels, layout_options=layout_options, opacity = 0.7)
fig.show()