U

unbound methods, Methods Are Objects: Bound or Unbound–Other callables, Static Methods in 2.X and 3.X

underscore (_), The Grander Module Story: Attributes, Getting Help, Minimizing from * Damage: _X and __all__, Classes Can Intercept Python Operators, Name Considerations in Tool Classes, Name Mangling Overview, Usage variation: Showing underscore name values

class names, Name Considerations in Tool Classes

module names, The Grander Module Story: Attributes, Minimizing from * Damage: _X and __all__

name mangling and, Name Mangling Overview

operator overloading, Getting Help, Classes Can Intercept Python Operators

showing name values, Usage variation: Showing underscore name values

Unicode character set, Unicode Strings–Unicode Strings, Unicode Strings, Unicode Strings, Binary Bytes Files, Unicode Text Files–Unicode Text Files, Unicode: The Short Story, Unicode: The Short Story, Unicode: The Short Story, Unicode: The Short Story, String Basics, Escape Sequences Represent Special Characters, Character code conversions, Character code conversions, Storing Python Objects in JSON Format, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action, How Python Stores Strings in Memory, Python 2.X Unicode literals in Python 3.3, Coding Unicode Strings–Source File Character Set Encoding Declarations, Coding Unicode Strings–Source File Character Set Encoding Declarations, Using Unicode Files–Stream content: PYTHONIOENCODING, Test Your Knowledge: Quiz–Test Your Knowledge: Answers

character code conversions, Character code conversions

code points, Unicode Strings, Escape Sequences Represent Special Characters, Character code conversions, How Python Stores Strings in Memory

currency symbols, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action

encoding and decoding, Binary Bytes Files, Unicode: The Short Story, String Basics, Coding Unicode Strings–Source File Character Set Encoding Declarations, Using Unicode Files–Stream content: PYTHONIOENCODING

JSON format and, Storing Python Objects in JSON Format

literals and, Unicode Strings, Unicode: The Short Story, Python 2.X Unicode literals in Python 3.3

quiz questions and answers, Test Your Knowledge: Quiz–Test Your Knowledge: Answers

strings and, Unicode Strings–Unicode Strings, Unicode: The Short Story, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action, Coding Unicode Strings–Source File Character Set Encoding Declarations

text files and, Unicode Text Files–Unicode Text Files, Unicode: The Short Story, Currency Symbols: Unicode in Action–Currency Symbols: Unicode in Action

unicode string type, Unicode Strings, Unicode: The Short Story, Text and Binary Files: The Short Story, Python’s String Types–Why the different string types?, Coding Unicode Strings in Python 2.X–Mixing string types in 2.X, Mixing String Types, The re Pattern-Matching Module

about, Unicode Strings, Unicode: The Short Story, Text and Binary Files: The Short Story, Python’s String Types–Why the different string types?

coding strings with, Coding Unicode Strings in Python 2.X–Mixing string types in 2.X

converting, Mixing String Types

re module and, The re Pattern-Matching Module

unittest module, Mixed Usage Modes: __name__ and __main__, Development Tools for Larger Projects

Unix platform, GUIs, Introducing the Python Interpreter, Frozen Binaries, Starting an Interactive Session, Where to Run: Code Directories, Unix-Style Executable Scripts: #!–The Python 3.3 Windows Launcher: #! Comes to Windows, The Unix env Lookup Trick, Icon-Click Basics, IDLE Startup Details, Generating Both Offsets and Items: enumerate, Installation Steps, Unix/Linux shell variables, The Unix Legacy

awk utility, Generating Both Offsets and Items: enumerate

configuring Python, Unix/Linux shell variables

env program, The Unix env Lookup Trick

executable scripts, Unix-Style Executable Scripts: #!–The Python 3.3 Windows Launcher: #! Comes to Windows

frozen binaries, Frozen Binaries

GUI support, GUIs

icon clicks, Icon-Click Basics

IDLE startup details, IDLE Startup Details

installing Python, Introducing the Python Interpreter, Installation Steps

system shell prompt, Starting an Interactive Session

Windows launcher and, The Unix Legacy

working directory, Where to Run: Code Directories

Unladen Swallow project, Future Possibilities?

unpacking arguments, Simulating Output Parameters and Multiple Results, Calls: Unpacking arguments

user-defined classes, User-Defined Classes

user-defined exceptions, User-Defined Exceptions, Default Printing and State, Functions Can Signal Conditions with raise

UTF-16 encoding, How Python Stores Strings in Memory

UTF-8 encoding, Character Encoding Schemes