reverse() Reverse the elements of the deque in-place and then return None.

types.FrameType The type of frame objects such as found in tb.tb_frame if tb is a traceback object

formatyear(theyear, width=3) Return a year’s calendar as an HTML table. width (defaulting to 3) specifies the number

calendar.weekheader(n) Return a header containing abbreviated weekday names. n specifies the width in characters for

class collections.defaultdict([default_factory[, ...]]) Returns a new dictionary-like object. defaultdict is a

types.MethodType The type of methods of user-defined class instances.

datetime.day Between 1 and the number of days in the given month of the given year.

heapq.heappush(heap, item) Push the value item onto the heap, maintaining the heap invariant.

alive Property which is true if the finalizer is alive, false otherwise.

time.isoformat() Return a string representing the time in ISO 8601 format, HH:MM:SS.mmmmmm or, if self.microsecond is 0, HH:MM:SS