I l@ve RuBoard

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u'<?xml' (XML declaration) 
UDP (User Datagram Protocol)
    passing messages with 
    reliability of 
    using to detect inactive computers on a network 
uiToolkit 
unbounded iterators, wrapping to restrict output 
undefined variables, testing for 
underscore (_) 
unichr 
Unicode 
    characters, printing to standard output 
    plain strings, converting to 
    Unicode strings  2nd  3rd 
    XML, autodetecting encoding in 
    XML, default encoding in 
unique 
Unix
    algorithms, measuring efficiency 
    commands, capturing output and error streams from 
    crossplatform debugging and 
    debugging dynamically loaded C extensions 
    measuring disk usage for 
    network interface, checking status 
UNIX Network Programming, Volume 1\: Networking APIs - Sockets and XTI, Second Edition 
unpack (Perl) contrasted with struct.unpack (Python) 
unpacking 
update 
upper (string object method) 
uppercase, conversion to lowercase 
upperOpen 
urllib 
urllib and urllib2 modules 
urlopen 
user feedback during data entry, giving via Qt 
user interfaces 
    avoiding lambda in writing callback functions 
    building GTK GUIs interactively 
    building toolkit-independent GUIs 
    CLIs 
    creating color scales 
    creating dialog boxes with Tkinter 
    creating menus with Tkinter 
    embedding GIFs inline using Tkinter 
    giving the user feedback during data entry with Qt 
    GUIs 
    Publish/Subscribe broadcasting to loosen coupling between GUIs and business logic systems 
    supporting multiple values per row in a Tkinter listbox 
    Tkinter 
    wxPython Notebook with panels 
using list comprehensions instead of map and filter 
UTF-16 encoding 
UTF-8  2nd 

I l@ve RuBoard