Is heap (heapq) in python stable?

Question

if heaptify this [(10,'Mike'),(20,'Jack'),(10,'Bob')]

And return the min of the heap, will it guaranteed to return (10,'Mike') and not (10,'Bob') ?

Answer 1

no heapq is not stable. as stated in the examples of the documentation

This is similar to sorted(iterable), but unlike sorted(), this implementation is not stable.