MarkerCluster: icon_create_function is not inserted as function

Hello,

I have a problem with my generation of map. In fact, I obtain double quotes in my source code, so I get “this._group.options.iconCreateFunction is not a function” message in Firefox.

Sample of my script :

# Create Map
obj_map_cluster = folium.Map(
    # Latitude and Longitude of Map (Northing, Easting)
    location=[46.5286, 2.4389],
    # Forces Leaflet to use the Canvas back-end for vector layers instead of SVG
    prefer_canvas=True,
    # Map tileset to use
    tiles='cartodbdark_matter',
    # Initial zoom level for the map
    zoom_start=6
)

# Assign icon create function
obj_markercluster = plugins.MarkerCluster(
    icon_create_function="""
function (cluster) {
    return L.divIcon({ html: cluster.getChildCount(), className: 'mycluster', iconSize: L.point(40, 40) });
}
"""
)

# Create Marker
obj_marker = folium.Marker([DEFINITION OF MARKER])
obj_markercluster.add_child(obj_marker)
obj_markercluster.add_to(obj_map_cluster)
obj_map_cluster.save('sites_cluster.html')

Problem description

HTML source code is : "iconCreateFunction": "function (cluster) {\n return L.divIcon({ html: cluster.getChildCount(), iconSize: L.point(40, 40) });\n}"

Expected Output

To work, I would like : iconCreateFunction: function (cluster) { return L.divIcon({ html: cluster.getChildCount(), iconSize: L.point(40, 40) });}

Without ‘"’ and ‘\n’

Output of folium.__version__

My version is 0.6.0+11.g71ab988

Thank you !

[nakasix]

Hello,

Sorry for my absence, I confirm that it works with the master version.

Thank you,

[Conengmo]

This has been fixed in #954. To use it you should install folium from the git master branch (until we release a next version). Thanks @nakasix for reporting this. By the way, if you have time maybe you can confirm it works now.