1.. _datatypes: 2 3********** 4Data Types 5********** 6 7The modules described in this chapter provide a variety of specialized data 8types such as dates and times, fixed-type arrays, heap queues, double-ended 9queues, and enumerations. 10 11Python also provides some built-in data types, in particular, 12:class:`dict`, :class:`list`, :class:`set` and :class:`frozenset`, and 13:class:`tuple`. The :class:`str` class is used to hold 14Unicode strings, and the :class:`bytes` and :class:`bytearray` classes are used 15to hold binary data. 16 17The following modules are documented in this chapter: 18 19 20.. toctree:: 21 22 datetime.rst 23 zoneinfo.rst 24 calendar.rst 25 collections.rst 26 collections.abc.rst 27 heapq.rst 28 bisect.rst 29 array.rst 30 weakref.rst 31 types.rst 32 copy.rst 33 pprint.rst 34 reprlib.rst 35 enum.rst 36 graphlib.rst 37