title: how to add a label on each circle in a folium.circile map python
body: <p>hei 
  I am trying to add labels into folium.circle map but for some reasons it won t work , anyone could help, here is my map script : </p>
  
  <pre><code>import folium
  # Make an empty map
  m = folium.Map(location=[59.911491, 10.757933], tiles="Mapbox Bright", zoom_start=5)
  # I can add marker one by one on the map
  hc =list(rf_map["General HC Type"])
  def color_producer(hc_type):
      if hc_type =="Oil Fields":
          return 'green'
      elif hc_type =="Oil &amp; Gas Fields":
          return 'deeppink'
      else:
          return 'red'
  for i,hc_map in zip(range(0,len(rf_map)),hc):
  folium.Circle(
      location=[rf_map.iloc[i]['Latitude Dec Deg'],rf_map.iloc[i]['Longitude Dec Deg']],
      popup=rf_map.iloc[i]['Field Name'],
      radius=rf_map.iloc[i]['Oil Recovery PP Factor']*300,
      fill=True,
      fill_color=color_producer(hc_map),
          color=color_producer(hc_map),
      fill_opacity=0.7,
      label=rf_map.iloc[i]["Field Name"]
  ).add_to(m)
  m.save('map.html')
  </code></pre>