'''Question: 
Write a Python program to find the available built-in modules.
'''

# Python code: 

import sys

import textwrap

module_name = ', '.join(sorted(sys.builtin_module_names))

print(textwrap.fill(module_name, width=70))



'''Output sample: 
_ast, _bisect, _codecs, _collections, _datetime, _elementtree,                                                

_functools, _heapq, _imp, _io, _locale, _md5, _operator, _pickle,                                             

_posixsubprocess, _random, _sha1, _sha256, _sha512, _signal, _socket,                                         

_sre, _stat, _string, _struct, _symtable, _thread, _tracemalloc,                                              

_warnings, _weakref, array, atexit, binascii, builtins, errno,                                                

faulthandler, fcntl, gc, grp, itertools, marshal, math, posix, pwd,                                           

pyexpat, select, spwd, sys, syslog, time, unicodedata, xxsubtype,                                             

zipimport, zlib 

'''