timedelta.total_seconds() Return the total number of seconds contained in the duration. Equivalent to td / timedelta(seconds=1)

rotate(n) Rotate the deque n steps to the right. If n is negative, rotate to the left. Rotating one step to

atexit A writable boolean property which by default is true. When the program exits, it calls all remaining live finalizers

class collections.abc.Set class collections.abc.MutableSet ABCs for read-only and mutable sets.

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

class calendar.LocaleHTMLCalendar(firstweekday=0, locale=None) This subclass of HTMLCalendar can be passed a locale

class array.array(typecode[, initializer]) A new array whose items are restricted by typecode, and initialized from

appendleft(x) Add x to the left side of the deque.

array.fromunicode(s) Extends this array with data from the given unicode string. The array must be a type 'u' array;

calendar.monthrange(year, month) Returns weekday of first day of the month and number of days in month, for the specified year