text: Python 2.7.10 (default, May 23 2015, 09:40:32) [MSC v.1500 32 bit (Intel)] on win32
  Type "copyright", "credits" or "license()" for more information.
  >>> help("modules")
  
  Please wait a moment while I gather a list of all available modules...
  
  AutoComplete        _markerlib          fractions           repr
  AutoCompleteWindow  _md5                ftplib              rexec
  AutoExpand          _msi                functools           rfc822
  BaseHTTPServer      _multibytecodec     future_builtins     rlcompleter
  Bastion             _multiprocessing    gc                  robotparser
  Bindings            _osx_support        genericpath         rpc
  CGIHTTPServer       _pyio               getopt              run
  CallTipWindow       _random             getpass             runpy
  CallTips            _sha                gettext             sched
  Canvas              _sha256             glob                select
  ClassBrowser        _sha512             gzip                sets
  CodeContext         _socket             hashlib             setuptools
  ColorDelegator      _sqlite3            heapq               sgmllib
  ConfigParser        _sre                hmac                sha
  Cookie              _ssl                hotshot             shelve
  Debugger            _strptime           htmlentitydefs      shlex
  Delegator           _struct             htmllib             shutil
  Dialog              _subprocess         httplib             signal
  DocXMLRPCServer     _symtable           idle                site
  EditorWindow        _testcapi           idle_test           smtpd
  FileDialog          _threading_local    idlelib             smtplib
  FileList            _tkinter            idlever             sndhdr
  FixTk               _warnings           ihooks              socket
  FormatParagraph     _weakref            imageop             sqlite3
  GrepDialog          _weakrefset         imaplib             sre
  HTMLParser          _winreg             imghdr              sre_compile
  HyperParser         abc                 imp                 sre_constants
  IOBinding           aboutDialog         importlib           sre_parse
  IdleHistory         aifc                imputil             ssl
  MimeWriter          antigravity         inspect             stat
  MultiCall           anydbm              io                  statvfs
  MultiStatusBar      argparse            itertools           string
  ObjectBrowser       array               json                stringold
  OutputWindow        ast                 keybindingDialog    stringprep
  ParenMatch          asynchat            keyword             strop
  PathBrowser         asyncore            lib2to3             struct
  Percolator          atexit              linecache           subprocess
  PyParse             audiodev            locale              sunau
  PyShell             audioop             logging             sunaudio
  Queue               base64              macosxSupport       symbol
  RemoteDebugger      bdb                 macpath             symtable
  RemoteObjectBrowser binascii            macurl2path         sys
  ReplaceDialog       binhex              mailbox             sysconfig
  RstripExtension     bisect              mailcap             tabbedpages
  ScriptBinding       bsddb               markupbase          tabnanny
  ScrolledList        bz2                 marshal             tarfile
  ScrolledText        cPickle             math                telnetlib
  SearchDialog        cProfile            md5                 tempfile
  SearchDialogBase    cStringIO           mhlib               test
  SearchEngine        calendar            mimetools           textView
  SimpleDialog        cgi                 mimetypes           textwrap
  SimpleHTTPServer    cgitb               mimify              this
  SimpleXMLRPCServer  chunk               mmap                thread
  SocketServer        cmath               modulefinder        threading
  StackViewer         cmd                 msilib              time
  StringIO            code                msvcrt              timeit
  Tix                 codecs              multifile           tkColorChooser
  Tkconstants         codeop              multiprocessing     tkCommonDialog
  Tkdnd               collections         mutex               tkFileDialog
  Tkinter             colorsys            netrc               tkFont
  ToolTip             commands            new                 tkMessageBox
  TreeWidget          compileall          nntplib             tkSimpleDialog
  UndoDelegator       compiler            nt                  toaiff
  UserDict            configDialog        ntpath              token
  UserList            configHandler       nturl2path          tokenize
  UserString          configHelpSourceEdit numbers             trace
  WidgetRedirector    configSectionNameDialog opcode              traceback
  WindowList          contextlib          operator            ttk
  ZoomHeight          cookielib           optparse            tty
  _LWPCookieJar       copy                os                  turtle
  _MozillaCookieJar   copy_reg            os2emxpath          types
  __builtin__         csv                 parser              unicodedata
  __future__          ctypes              pdb                 unittest
  _abcoll             curses              pickle              urllib
  _ast                datetime            pickletools         urllib2
  _bisect             dbhash              pip                 urlparse
  _bsddb              decimal             pipes               user
  _codecs             difflib             pkg_resources       uu
  _codecs_cn          dircache            pkgutil             uuid
  _codecs_hk          dis                 platform            warnings
  _codecs_iso2022     distutils           plistlib            wave
  _codecs_jp          doctest             popen2              weakref
  _codecs_kr          dumbdbm             poplib              webbrowser
  _codecs_tw          dummy_thread        posixfile           whichdb
  _collections        dummy_threading     posixpath           winsound
  _csv                dynOptionMenuWidget pprint              wsgiref
  _ctypes             easy_install        profile             xdrlib
  _ctypes_test        email               pstats              xml
  _elementtree        encodings           pty                 xmllib
  _functools          ensurepip           py_compile          xmlrpclib
  _hashlib            errno               pyclbr              xxsubtype
  _heapq              exceptions          pydoc               zipfile
  _hotshot            filecmp             pydoc_data          zipimport
  _io                 fileinput           pyexpat             zlib
  _json               fnmatch             quopri              
  _locale             formatter           random              
  _lsprof             fpformat            re                  
  
  Enter any module name to get more help.  Or, type "modules spam" to search
  for modules whose descriptions contain the word "spam".
  
  >>> len(pet)
  
  Traceback (most recent call last):
    File "<pyshell#1>", line 1, in <module>
      len(pet)
  NameError: name 'pet' is not defined
  >>> three = 3
  >>> four = 4
  >>> result = three * four
  >>> result
  12
  >>> pet
  
  Traceback (most recent call last):
    File "<pyshell#6>", line 1, in <module>
      pet
  NameError: name 'pet' is not defined
  >>> lottery = [4 , 45 , 34 , 97 , 289]
  >>> len(lottery)
  5
  >>> lottery[-1]
  289
  >>> 
  