maxlen Maximum size of a deque or None if unbounded.

popleft() Remove and return an element from the left side of the deque. If no elements are present, raises an

array.reverse() Reverse the order of the items in the array.

index(x[, start[, stop]]) Return the position of x in the deque (at or after index start and before index

formatyear(theyear, w=2, l=1, c=6, m=3) Return a m-column calendar for an entire year as a multi-line string. Optional

datetime.tzinfo The object passed as the tzinfo argument to the datetime constructor, or None

class collections.abc.Iterator ABC for classes that provide the

time.tzname() If tzinfo is None, returns None, else returns self.tzinfo.tzname(None)

date.strftime(format) Return a string representing the date, controlled by an explicit format string. Format codes referring

Repr.repr(obj) The equivalent to the built-in