Authors: Mark Lutz

Tags: #COMPUTERS / Programming Languages / Python

Programming Python (212 page)

name conventions, File name conventions , Installing CGI scripts

CGI scripts, Installing CGI scripts
files, File name conventions

__name__ variable, Using Programs in Two Ways

named pipes, Interprocess Communication , Anonymous Pipes , Named Pipes (Fifos) , Named pipe basics , Named pipe basics , Named pipe use cases

basic functionality, Named pipe basics , Named pipe basics
creating, Named Pipes (Fifos)
defined, Interprocess Communication , Anonymous Pipes
use cases, Named pipe use cases

namespaces, Running Code Strings with Results and Namespaces , Running Code Strings with Results and Namespaces , Running Strings in Dictionaries

creating, Running Strings in Dictionaries
running code strings with, Running Code Strings with Results and Namespaces , Running Code Strings with Results and Namespaces

natural language processing, Advanced Language Tools

nested structures, Nested structures , Uploading Local Trees , Uploading Local Trees , Pickled Objects , Pickling in Action

dictionaries, Nested structures
pickling, Pickled Objects , Pickling in Action
uploading local trees, Uploading Local Trees , Uploading Local Trees

Network News Transfer Protocol (NNTP), NNTP: Accessing Newsgroups , NNTP: Accessing Newsgroups , More Than One Way to Push Bits over the Net

network scripting, Python Internet Development Options , Python Internet Development Options , The Socket Layer , Machine identifiers , The Protocol Layer , Protocol structures , Python’s Internet Library Modules , Python’s Internet Library Modules , Socket Programming , Binding reserved port servers , Handling Multiple Clients , Summary: Choosing a Server Scheme , Making Sockets Look Like Files and Streams , Sockets versus command pipes , A Simple Python File Server , Using a reusable form-layout class

development options, Python Internet Development Options , Python Internet Development Options
handling multiple clients, Handling Multiple Clients , Summary: Choosing a Server Scheme
library modules and, Python’s Internet Library Modules , Python’s Internet Library Modules
making sockets look like files/streams, Making Sockets Look Like Files and Streams , Sockets versus command pipes
protocols and, The Protocol Layer , Protocol structures
Python file server, A Simple Python File Server , Using a reusable form-layout class
sockets and, The Socket Layer , Machine identifiers , Socket Programming , Binding reserved port servers

newsgroups, NNTP: Accessing Newsgroups , NNTP: Accessing Newsgroups , Ideas for Improvement

accessing, NNTP: Accessing Newsgroups , NNTP: Accessing Newsgroups
handling messages, Ideas for Improvement

NLTK suite, Advanced Language Tools

NNTP (Network News Transfer Protocol), NNTP: Accessing Newsgroups , NNTP: Accessing Newsgroups , More Than One Way to Push Bits over the Net

nntplib module, Python’s Internet Library Modules , NNTP: Accessing Newsgroups , NNTP: Accessing Newsgroups

numeric tools, A Quick Geometry Lesson

NumPy programming extension, A Quick Geometry Lesson , Extending and Embedding

object references, Deferring Calls with Lambdas and Object References , Deferring Calls with Lambdas and Object References , Reloading Callback Handlers Dynamically

callback handlers as, Reloading Callback Handlers Dynamically
deferring calls, Deferring Calls with Lambdas and Object References , Deferring Calls with Lambdas and Object References

object relational mappers, Other Database Options (see ORMs)

Object Request Broker (ORB), Python Internet Development Options

object types, storing in shelves, Storing Built-in Object Types in Shelves

object-oriented databases (OODBs), Persistence Options in Python

object-oriented programming, Step 3: Stepping Up to OOP (see OOP)

objects, Step 1: Sharing Objects Between Pages—A New Input Form , Step 1: Sharing Objects Between Pages—A New Input Form , Persistence Options in Python , Pickled Objects , Pickle Details: Protocols, Binary Modes, and _pickle , Pickled Objects , Changing Classes of Objects Stored in Shelves , Objects are unique only within a key , What Is Embedded Code? , Calling Python Objects , Calling Python Objects , Registering Callback Handler Objects , Registration Implementation

callable, What Is Embedded Code? , Calling Python Objects , Calling Python Objects , Registering Callback Handler Objects , Registration Implementation
changing classes, Changing Classes of Objects Stored in Shelves
converting to strings, Pickled Objects
pickled, Persistence Options in Python , Pickled Objects , Pickle Details: Protocols, Binary Modes, and _pickle
sharing between pages, Step 1: Sharing Objects Between Pages—A New Input Form , Step 1: Sharing Objects Between Pages—A New Input Form
shelve constraints, Objects are unique only within a key

offline processing, PyMailGUI program, Offline Processing with Save and Open , Offline Processing with Save and Open

onSignal handler function, Signals

OODBs (object-oriented databases), Persistence Options in Python

OOP (object-oriented programming), Step 3: Stepping Up to OOP , Step 3: Stepping Up to OOP , Using Classes , Using Classes , Adding Behavior , Adding Inheritance , Refactoring Code , Alternative classes , Adding Persistence , Adding Persistence , Other Database Options , Using OOP for GUIs , Using OOP for GUIs , Python Is OOP Done Right

adding behavior, Adding Behavior
adding inheritance, Adding Inheritance
adding persistence, Adding Persistence , Adding Persistence
alternative database options, Other Database Options
class considerations, Using Classes , Using Classes
GUI considerations, Using OOP for GUIs , Using OOP for GUIs
programming considerations, Step 3: Stepping Up to OOP , Step 3: Stepping Up to OOP , Python Is OOP Done Right
refactoring code, Refactoring Code , Alternative classes

open function, File Tools , Using Built-in File Objects , Other open options , Other open options

buffering policy, Other open options
functionality, File Tools , Using Built-in File Objects
modes supported, Other open options

open source software, This Chapter’s Strategy , Python’s Internet Library Modules

opening files, Opening , Other open options

optimization, Optimization: Tuple Tree Stacks , Optimization: Tuple Tree Stacks , Optimization: In-Place List Modifications , Optimization: In-Place List Modifications , Optimization: Moving Sets to Dictionaries , Timing the results under Python 3.1

in-place list modifications, Optimization: In-Place List Modifications , Optimization: In-Place List Modifications
moving sets to dictionaries, Optimization: Moving Sets to Dictionaries , Timing the results under Python 3.1
tuple tree stacks, Optimization: Tuple Tree Stacks , Optimization: Tuple Tree Stacks

Optionmenu widget class, Using Menubuttons and Optionmenus

optparse module, Parsing Command-Line Arguments

ORB (Object Request Broker), Python Internet Development Options

ORMs (object relational mappers), Other Database Options , Python Internet Development Options , Persistence Options in Python , ORMs: Object Relational Mappers , ORMs: Object Relational Mappers

database options, Other Database Options , Python Internet Development Options
functionality, Persistence Options in Python , ORMs: Object Relational Mappers , ORMs: Object Relational Mappers

administrative tools, Administrative Tools

chdir function, Administrative Tools , Current Working Directory

chmod function, Other os module file tools

close function, Bidirectional IPC with anonymous pipes

dup function, Redirecting input and output with subprocess

dup2 function, Bidirectional IPC with anonymous pipes

environ mapping, Other os Module Exports , “I’d Like to Have an Argument, Please” , Shell Environment Variables , Changing Shell Variables , Wrapping C Environment Calls , Adding Wrapper Classes to Flat Libraries

accessing environment variables, Wrapping C Environment Calls
accessing shell variables, Shell Environment Variables
changing shell variables, Changing Shell Variables
Env object, Adding Wrapper Classes to Flat Libraries
functionality, Other os Module Exports , “I’d Like to Have an Argument, Please”

execl function, os.exec call formats

execle function, os.exec call formats

execlp function, Other os Module Exports , The fork/exec Combination , Spawned child program , os.exec call formats

execlpe function, os.exec call formats

execv function, os.exec call formats

execve function, os.exec call formats

execvp function, os.exec call formats , Bidirectional IPC with anonymous pipes

execvpe function, os.exec call formats

_exit function, os Module Exits

fdopen function, Wrapping descriptors in file objects , Wrapping pipe descriptors in file objects

file tools supported, Lower-Level File Tools in the os Module

fork function, Other os Module Exports , Redirecting input and output with subprocess , Forking Processes , The fork/exec Combination , Spawned child program , Bidirectional IPC with anonymous pipes

functionality, Other os Module Exports , Forking Processes , Bidirectional IPC with anonymous pipes
os.execlp combination, The fork/exec Combination , Spawned child program
redirecting streams, Redirecting input and output with subprocess

forking tools, Forking Processes

functionality, System Scripting Overview , Python System Modules , Introducing the os Module

getcwd function, Administrative Tools , “I’d Like to Have an Argument, Please”

getenv function, Shell Variable Fine Points: Parents, putenv, and getenv

getpid function, Administrative Tools , Forking Processes

kill function, Signals , Preventing zombies with signal handlers on Linux

linesep character, Portability Constants

listdir function, The os.listdir call , Recursive os.listdir traversals , Handling Unicode Filenames in 3.X: listdir, walk, glob , Printing Unicode Filenames , Joining Files Portably , Downloading Site Directories , Uploading Site Directories

fetching list of remote files, Downloading Site Directories
handling Unicode filenames, Handling Unicode Filenames in 3.X: listdir, walk, glob
joining files, Joining Files Portably
printing Unicode filenames, Printing Unicode Filenames
storing local files, Uploading Site Directories
walking directory trees, Recursive os.listdir traversals
walking one directory, The os.listdir call

lseek function, Lower-Level File Tools in the os Module

mkdir function, Other os Module Exports

mkfifo function, Other os Module Exports , Named pipe basics

open function, Other os Module Exports , Lower-Level File Tools in the os Module , Using os.open files , os.open mode flags

pathsep character, Portability Constants

pipe function, Other os Module Exports , Redirecting input and output with subprocess , Anonymous pipe basics , Bidirectional IPC with anonymous pipes

file descriptors and, Anonymous pipe basics
functionality, Other os Module Exports , Bidirectional IPC with anonymous pipes
redirecting output, Redirecting input and output with subprocess

popen function, Running Shell Commands from Scripts , Communicating with shell commands , “I’d Like to Have an Argument, Please” , Other Redirection Options: os.popen and subprocess Revisited , Redirecting input or output with os.popen , Running shell listing commands with os.popen , Running shell listing commands with os.popen , Exit status with os.system and os.popen , SMTP: Sending Email

communicating with, Communicating with shell commands
exit status, Exit status with os.system and os.popen
functionality, Running Shell Commands from Scripts
launching mail program, SMTP: Sending Email
redirecting streams, Other Redirection Options: os.popen and subprocess Revisited , Redirecting input or output with os.popen
shell listing command, Running shell listing commands with os.popen , Running shell listing commands with os.popen
standard streams and, “I’d Like to Have an Argument, Please”

portability constants, Portability Constants

program exits, os Module Exits

putenv function, Shell Variable Fine Points: Parents, putenv, and getenv , Wrapping C Environment Calls

read function, Lower-Level File Tools in the os Module

remove function, Other os Module Exports , Other os module file tools

rename function, Other os module file tools

sep character, Portability Constants

shell commands from scripts, Running Shell Commands from Scripts , Shell command limitations

spawnv function, Other os Module Exports , Changing Shell Variables , The os.spawn Calls , The os.spawn Calls

spawnve function, Changing Shell Variables , The os.spawn Calls , The os.spawn Calls

startfile function, The os.startfile call

stat function, Other os Module Exports , Other os module file tools , Handling private files and errors

system function, Running Shell Commands from Scripts , Communicating with shell commands , Exit status with os.system and os.popen

tools by functional area, Tools in the os Module

unlink function, Other os module file tools

walk function, Other os Module Exports , The os.walk visitor , The os.walk visitor , Handling Unicode Filenames in 3.X: listdir, walk, glob , Scanning the Standard Library Tree , Rolling Your Own find Module

find function and, Rolling Your Own find Module
functionality, Other os Module Exports
handling Unicode filenames, Handling Unicode Filenames in 3.X: listdir, walk, glob
scanning directory trees, The os.walk visitor , The os.walk visitor , Scanning the Standard Library Tree

write function, Lower-Level File Tools in the os Module

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