calendar.firstweekday() Returns the current setting for the weekday to start each week.

class types.SimpleNamespace A simple

parents Property returning a new ChainMap containing all of the maps in the current instance except the first one

fromkeys(iterable) This class method is not implemented for Counter objects.

__name__ The name of the module.

Repr.maxstring Limit on the number of characters in the representation of the string. Note that the “normal” representation

bisect.insort(a, x, lo=0, hi=len(a)) Similar to insort_left(), but inserting x in a after any

class collections.Counter([iterable-or-mapping]) A Counter is a

heapq.heappop(heap) Pop and return the smallest item from the heap, maintaining the heap invariant. If the heap is

update([iterable-or-mapping]) Elements are counted from an iterable or added-in from another mapping (or counter)