In python 3 map returns an iterator. This causes a problem for sharded clusters because the rs_params['members'] field is assumed to be a list and is iterated over multiple times.
Removed the other two uses of map in favor of list comprehensions to not promote the use of map in the future.
In python 3
mapreturns an iterator. This causes a problem for sharded clusters because thers_params['members']field is assumed to be alistand is iterated over multiple times.Removed the other two uses of
mapin favor of list comprehensions to not promote the use ofmapin the future.