Choropleth city

paris-choropleth.py

import contextily as cx

# read data
df =  gpd.read_file('data/arrondissements/arrondissements.shp',encoding='utf-8')
df = df.to_crs(epsg=3857)

fig, ax = plt.subplots(1, figsize=(10, 6),dpi=300,facecolor='w',edgecolor='w')
# colorbar
divider = make_axes_locatable(ax)
cax = divider.append_axes('right', size='5%', pad=0.3)
#plot
gax = df.plot(ax=ax,cax=cax, column='perimetre', cmap='Reds', legend=True, edgecolor='black', linewidth=0.5,legend_kwds={'shrink':0.6},alpha=0.5)
# plot background map
cx.add_basemap(ax)
# add text
df.apply(lambda x: gax.annotate(x['l_aroff'], xy=x.geometry.centroid.coords[0], ha='center',size=6), axis=1)
ax.set_axis_off()
# label the colorbar
cax.tick_params(labelsize=10)
cax.set_ylabel('Perimeter',fontsize=10)
cax.yaxis.set_label_position('left')
plt.show()