class collections.abc.Hashable class collections.abc.Sized class collections.abc.Callable

class collections.abc.MutableMapping ABCs for read-only and mutable mappings.

yeardays2calendar(year, width=3) Return the data for the specified year ready for formatting (similar to yeardatescalendar())

datetime.time() Return time object with same hour, minute, second and microsecond. tzinfo is None

bisect.bisect_right(a, x, lo=0, hi=len(a)) bisect.bisect(a, x, lo=0, hi=len(a)) Similar to bisect_left()

heapq.merge(*iterables, key=None, reverse=False) Merge multiple sorted inputs into a single sorted output (for example, merge

class collections.abc.ByteString ABCs for read-only and mutable sequences.

time.__format__(format) Same as time.strftime(). This makes it possible to specify a format string for a time

time.tzinfo The object passed as the tzinfo argument to the time constructor, or None if none was

exception weakref.ReferenceError Exception raised when a proxy object is used but the underlying object has been collected.