import contextily as cx
# gdf is a simple geodataframe of a 10 x 10 Km square polygon inside Spain
ax = gdf.plot(figsize=(10, 10), alpha=0.05, edgecolor="k")
# this works well for my area:
tile_source = cx.providers.OpenStreetMap.Mapnik 
tile_attribution = 'OSM contributors' 
# but this fails:
tile_source='https://tms-pnoa-ma.idee.es/1.0.0/pnoa-ma/{z}/{x}/-{y}.jpeg' 
tile_attribution = 'idee.es pnoa-ma'
cx.add_basemap(ax=ax, crs='epsg:4326', source=tile_source, attribution=tile_attribution)
plt.savefig('contextily_test.png', bbox_inches='tight')