The modules described in this chapter provide a variety of specialized datatypes such as dates and times, fixed-type arrays, heap queues, double-endedqueues, and enumerations.
Python also provides some built-in data types, in particular,dict, list, set and frozenset, andtuple. The str class is used to holdUnicode strings, and the bytes and bytearray classes are usedto hold binary data.
The following modules are documented in this chapter:
datetime— Basic date and time typeszoneinfo— IANA time zone supportcalendar— General calendar-related functionscollections— Container datatypescollections.abc— Abstract Base Classes for Containersheapq— Heap queue algorithmbisect— Array bisection algorithmarray— Efficient arrays of numeric valuesweakref— Weak referencestypes— Dynamic type creation and names for built-in typescopy— Shallow and deep copy operationspprint— Data pretty printerreprlib— Alternaterepr()implementationenum— Support for enumerationsgraphlib— Functionality to operate with graph-like structures
