- u-LAW, [1], [2]
  
 
      
  - ucd_3_2_0 (in module unicodedata)
  
 
      
  - udata (select.kevent attribute)
  
 
      
  - UF_APPEND (in module stat)
  
 
      
  - UF_COMPRESSED (in module stat)
  
 
      
  - UF_HIDDEN (in module stat)
  
 
      
  - UF_IMMUTABLE (in module stat)
  
 
      
  - UF_NODUMP (in module stat)
  
 
      
  - UF_NOUNLINK (in module stat)
  
 
      
  - UF_OPAQUE (in module stat)
  
 
      
  - uid (tarfile.TarInfo attribute)
  
 
      
  - uid() (imaplib.IMAP4 method)
  
 
      
  - uidl() (poplib.POP3 method)
  
 
      
  - ulaw2lin() (in module audioop)
  
 
      
  - ULONG_MAX
  
 
      
  - umask() (in module os)
  
 
      
  - unalias (pdb command)
  
 
      
  - uname (tarfile.TarInfo attribute)
  
 
      
  - uname() (in module os)
  
 
      
        
  - (in module platform)
  
 
        
      
  - 
    unary
  
 
      
        
  - arithmetic operation
  
 
        
  - bitwise operation
  
 
        
      
  - UNARY_INVERT (opcode)
  
 
      
  - UNARY_NEGATIVE (opcode)
  
 
      
  - UNARY_NOT (opcode)
  
 
      
  - UNARY_POSITIVE (opcode)
  
 
      
  - 
    unbinding
  
 
      
        
  - name
  
 
        
      
  - UnboundLocalError, [1]
  
 
      
  - unbuffered I/O
  
 
      
  - 
    UNC paths
  
 
      
        
  - and os.makedirs()
  
 
        
      
  - unconsumed_tail (zlib.Decompress attribute)
  
 
      
  - unctrl() (in module curses)
  
 
      
        
  - (in module curses.ascii)
  
 
        
      
  - undefine_macro() (distutils.ccompiler.CCompiler method)
  
 
      
  - Underflow (class in decimal)
  
 
      
  - underline (built-in variable)
  
 
      
  - undisplay (pdb command)
  
 
      
  - undo() (in module turtle)
  
 
      
  - undobufferentries() (in module turtle)
  
 
      
  - undoc_header (cmd.Cmd attribute)
  
 
      
  - unescape() (in module xml.sax.saxutils)
  
 
      
  - UnexpectedException
  
 
      
  - unexpectedSuccesses (unittest.TestResult attribute)
  
 
      
  - unget_wch() (in module curses)
  
 
      
  - ungetch() (in module curses)
  
 
      
        
  - (in module msvcrt)
  
 
        
      
  - ungetmouse() (in module curses)
  
 
      
  - ungetwch() (in module msvcrt)
  
 
      
  - unhexlify() (in module binascii)
  
 
      
  - Unicode, [1], [2]
  
 
      
        
  - database
  
 
        
      
  - unicode (2to3 fixer)
  
 
      
  - Unicode Consortium
  
 
      
  - unicodedata (module)
  
 
      
  - UnicodeDecodeError
  
 
      
  - UnicodeEncodeError
  
 
      
  - UnicodeError
  
 
      
  - UnicodeTranslateError
  
 
      
  - UnicodeWarning
  
 
      
  - unidata_version (in module unicodedata)
  
 
      
  - unified_diff() (in module difflib)
  
 
      
  - uniform() (in module random)
  
 
      
  - UnimplementedFileMode
  
 
      
  - Union (class in ctypes)
  
 
      
  - union() (set method)
  
 
      
  - unittest (module)
  
 
      
  - 
    unittest command line option
  
 
      
        
  - -b, --buffer
  
 
        
  - -c, --catch
  
 
        
  - -f, --failfast
  
 
        
      
  - 
    unittest-discover command line option
  
 
      
        
  - -p pattern
  
 
        
  - -s directory
  
 
        
  - -t directory
  
 
        
  - -v, --verbose
  
 
        
      
  - unittest.mock (module)
  
 
      
  - universal newlines
  
 
      
        
  - What's new, [1], [2], [3]
  
 
        
  - csv.reader function
  
 
        
  - importlib.abc.InspectLoader.get_source method
  
 
        
  - io.IncrementalNewlineDecoder class
  
 
        
  - io.TextIOWrapper class
  
 
        
  - open() built-in function
  
 
        
  - str.splitlines method
  
 
        
  - subprocess module
  
 
        
  - zipfile.ZipFile.open method
  
 
        
      
  - UNIX
  
 
      
        
  - I/O control
  
 
        
  - file control
  
 
        
      
  - unix_dialect (class in csv)
  
 
      
  - unknown_decl() (html.parser.HTMLParser method)
  
 
      
  - unknown_open() (urllib.request.BaseHandler method)
  
 
      
        
  - (urllib.request.UnknownHandler method)
  
 
        
      
  - UnknownHandler (class in urllib.request)
  
 
      
  - UnknownProtocol
  
 
      
  - UnknownTransferEncoding
  
 
      
  - unlink() (in module os)
  
 
      
        
  - (xml.dom.minidom.Node method)
  
 
        
      
  - unlock() (mailbox.Babyl method)
  
 
      
        
  - (mailbox.MH method)
  
 
        
  - (mailbox.MMDF method)
  
 
        
  - (mailbox.Mailbox method)
  
 
        
  - (mailbox.Maildir method)
  
 
        
  - (mailbox.mbox method)
  
 
        
      
  - unpack() (in module struct)
  
 
      
        
  - (struct.Struct method)
  
 
        
      
  - unpack_archive() (in module shutil)
  
 
      
  - unpack_array() (xdrlib.Unpacker method)
  
 
      
  - unpack_bytes() (xdrlib.Unpacker method)
  
 
      
  - unpack_double() (xdrlib.Unpacker method)
  
 
      
  - UNPACK_EX (opcode)
  
 
      
  - unpack_farray() (xdrlib.Unpacker method)
  
 
      
  - unpack_float() (xdrlib.Unpacker method)
  
 
      
  - unpack_fopaque() (xdrlib.Unpacker method)
  
 
      
  - unpack_from() (in module struct)
  
 
      
        
  - (struct.Struct method)
  
 
        
      
  - unpack_fstring() (xdrlib.Unpacker method)
  
 
      
  - unpack_list() (xdrlib.Unpacker method)
  
 
      
  - unpack_opaque() (xdrlib.Unpacker method)
  
 
      
  - UNPACK_SEQUENCE (opcode)
  
 
      
  - unpack_string() (xdrlib.Unpacker method)
  
 
      
  - Unpacker (class in xdrlib)
  
 
      
  - unparsedEntityDecl() (xml.sax.handler.DTDHandler method)
  
 
      
  - UnparsedEntityDeclHandler() (xml.parsers.expat.xmlparser method)
  
 
      
  - Unpickler (class in pickle)
  
 
      
  - UnpicklingError
  
 
      
  - unquote() (in module email.utils)
  
 
      
        
  - (in module urllib.parse)
  
 
        
      
  - unquote_plus() (in module urllib.parse)
  
 
      
  - unquote_to_bytes() (in module urllib.parse)
  
 
      
  - unreachable object
  
 
    | 
  
      
  - unreadline() (distutils.text_file.TextFile method)
  
 
      
  - unrecognized escape sequence
  
 
      
  - unregister() (in module atexit)
  
 
      
        
  - (in module faulthandler)
  
 
        
  - (select.devpoll method)
  
 
        
  - (select.epoll method)
  
 
        
  - (select.poll method)
  
 
        
      
  - unregister_archive_format() (in module shutil)
  
 
      
  - unregister_dialect() (in module csv)
  
 
      
  - unregister_unpack_format() (in module shutil)
  
 
      
  - unset() (test.support.EnvironmentVarGuard method)
  
 
      
  - unsetenv() (in module os)
  
 
      
  - UnstructuredHeader (class in email.headerregistry)
  
 
      
  - unsubscribe() (imaplib.IMAP4 method)
  
 
      
  - UnsupportedOperation
  
 
      
  - until (pdb command)
  
 
      
  - untokenize() (in module tokenize)
  
 
      
  - untouchwin() (curses.window method)
  
 
      
  - unused_data (bz2.BZ2Decompressor attribute)
  
 
      
        
  - (lzma.LZMADecompressor attribute)
  
 
        
  - (zlib.Decompress attribute)
  
 
        
      
  - unverifiable (urllib.request.Request attribute)
  
 
      
  - unwrap() (ssl.SSLSocket method)
  
 
      
  - up (pdb command)
  
 
      
  - up() (in module turtle)
  
 
      
  - update() (collections.Counter method)
  
 
      
        
  - (dict method)
  
 
        
  - (hashlib.hash method)
  
 
        
  - (hmac.HMAC method)
  
 
        
  - (in module turtle)
  
 
        
  - (mailbox.Mailbox method)
  
 
        
  - (mailbox.Maildir method)
  
 
        
  - (set method)
  
 
        
  - (trace.CoverageResults method)
  
 
        
      
  - update_panels() (in module curses.panel)
  
 
      
  - update_visible() (mailbox.BabylMessage method)
  
 
      
  - update_wrapper() (in module functools)
  
 
      
  - upper() (str method)
  
 
      
  - urandom() (in module os)
  
 
      
  - URL, [1], [2], [3]
  
 
      
        
  - parsing
  
 
        
  - relative
  
 
        
      
  - url (xmlrpc.client.ProtocolError attribute)
  
 
      
  - url2pathname() (in module urllib.request)
  
 
      
  - urlcleanup() (in module urllib.request)
  
 
      
  - urldefrag() (in module urllib.parse)
  
 
      
  - urlencode() (in module urllib.parse)
  
 
      
  - URLError
  
 
      
  - urljoin() (in module urllib.parse)
  
 
      
  - urllib (2to3 fixer)
  
 
      
  - urllib.error (module)
  
 
      
  - urllib.parse (module)
  
 
      
  - 
    urllib.request
  
 
      
        
  - module
  
 
        
      
  - urllib.request (module)
  
 
      
  - urllib.response (module)
  
 
      
  - urllib.robotparser (module)
  
 
      
  - urlopen() (in module urllib.request)
  
 
      
  - URLopener (class in urllib.request)
  
 
      
  - urlparse() (in module urllib.parse)
  
 
      
  - urlretrieve() (in module urllib.request)
  
 
      
  - urlsafe_b64decode() (in module base64)
  
 
      
  - urlsafe_b64encode() (in module base64)
  
 
      
  - urlsplit() (in module urllib.parse)
  
 
      
  - urlunparse() (in module urllib.parse)
  
 
      
  - urlunsplit() (in module urllib.parse)
  
 
      
  - urn (uuid.UUID attribute)
  
 
      
  - use_default_colors() (in module curses)
  
 
      
  - use_env() (in module curses)
  
 
      
  - use_opensearch (built-in variable)
  
 
      
  - use_rawinput (cmd.Cmd attribute)
  
 
      
  - UseForeignDTD() (xml.parsers.expat.xmlparser method)
  
 
      
  - USER
  
 
      
  - 
    user
  
 
      
        
  - effective id
  
 
        
  - id
  
 
        
  - id, setting
  
 
        
      
  - user() (poplib.POP3 method)
  
 
      
  - 
    user-defined
  
 
      
        
  - function
  
 
        
  - function call
  
 
        
  - method
  
 
        
      
  - 
    user-defined function
  
 
      
        
  - object, [1], [2]
  
 
        
      
  - 
    user-defined method
  
 
      
        
  - object
  
 
        
      
  - USER_BASE
  
 
      
        
  - (in module site)
  
 
        
      
  - user_call() (bdb.Bdb method)
  
 
      
  - user_exception() (bdb.Bdb method)
  
 
      
  - user_line() (bdb.Bdb method)
  
 
      
  - user_return() (bdb.Bdb method)
  
 
      
  - USER_SITE (in module site)
  
 
      
  - 
    usercustomize
  
 
      
        
  - module
  
 
        
      
  - UserDict (class in collections)
  
 
      
  - UserList (class in collections)
  
 
      
  - USERNAME, [1]
  
 
      
  - username (email.headerregistry.Address attribute)
  
 
      
  - USERPROFILE, [1]
  
 
      
  - userptr() (curses.panel.Panel method)
  
 
      
  - UserString (class in collections)
  
 
      
  - UserWarning
  
 
      
  - USTAR_FORMAT (in module tarfile)
  
 
      
  - UTC
  
 
      
  - utc (datetime.timezone attribute)
  
 
      
  - utcfromtimestamp() (datetime.datetime class method)
  
 
      
  - utcnow() (datetime.datetime class method)
  
 
      
  - utcoffset() (datetime.datetime method)
  
 
      
        
  - (datetime.time method)
  
 
        
  - (datetime.timezone method)
  
 
        
  - (datetime.tzinfo method)
  
 
        
      
  - utctimetuple() (datetime.datetime method)
  
 
      
  - utime() (in module os)
  
 
      
  - 
    uu
  
 
      
        
  - module
  
 
        
      
  - uu (module)
  
 
      
  - UUID (class in uuid)
  
 
      
  - uuid (module)
  
 
      
  - uuid1
  
 
      
  - uuid1() (in module uuid)
  
 
      
  - uuid3
  
 
      
  - uuid3() (in module uuid)
  
 
      
  - uuid4
  
 
      
  - uuid4() (in module uuid)
  
 
      
  - uuid5
  
 
      
  - uuid5() (in module uuid)
  
 
      
  - UuidCreate() (in module msilib)
  
 
    |