Pyelasticsearch and geopoint

maybe i should ask another place..

i currently try to bulk insert with the pyelasticsearch python lib https://pyelasticsearch.readthedocs.io/en/latest/ a geopoint

the destination index is mapped with a geopoint mapping for data.

my datas come from csv and convert it with pandas lib

inside my csv lat and lon are in 2 distinct columns.

then sent to ES by pyelasticsearch but never succeed to insert into geopoint

should i generate another column wiht specific format and insert it to become my geopoint?
or any setting to manipulate it within ES?

base of my import python comes from here https://gist.github.com/clemsos/8668698
thanks
alain

What do the documents you're indexing look like? What does the destination index's mappings look like?