I recently started learning python , so I was looking for some C++ STL equivalents in Python. is there any way i can achieve a similar functionality of —

Set and Maps in python with —

insert (log n)
delete (log n)
find (log n)

as fas a I Understand Python Standard Sets are not sorted and are implemented using Hash-Tables (similar to unordered-Sets in C++) has —

insert (O(1) average case , Worst case O(n) [when large no of values have same hash value])
delete (O(1) average case , Worst case O(n) [when large no of values have same hash value])
find (O(1) average case , Worst case O(n) [when large no of values have same hash value])

I know there is a third party package called sortedcontainers which has some C++ equivalents —

std::set    sortedcontainers.SortedSet
        std::multiset   sortedcontainers.SortedList
        std::map    sortedcontainers.SortedDict

but I want to get these funcionalities without installing any third party packages (because those would be local to my environment), and I want to submit to codeforces.

can anybody help?