optimization tools - performance considerations programmer' perspective - pvm and quiz questions and answers - selecting from options system command lines and files - text editor launch options unix-style scripts - program units (see also classesfunctionsmodulesprogramming python (lutz) programs about metaprograms - modules and prompts (see interactive promptsystem promptproperties about - attribute - class statement coding with decorators - descriptors and - validating with - property built-in function prototyping systems proxy classes (wrappersabout - decorators installing delegation and pseudoprivate class attributes about - larger projects and public attributes and psf (python software foundation) pstats module psyco system pth file extension public attributes - pvm (python virtual machine) py file extension about common usage mistakes imported files and py app tool py exe tool index pyc file extension __pycache__ subdirectory pychecker tool pydev ide pydoc system about changing colors in help function - html reports - version considerations - pydoc py script pygame toolkit pyinstaller tool pylint system pymongo interface pyo file extension pypy system about benchmarking performance considerations timeit module and - pyrolog interpreter pyserial extension pysolfc program pystone py program python enhancement proposal (pep) python interpreter about additional information alternatives to byte code and - configuring - development considerations installing - locating with env program performance considerations pvm and python programming language additional information advantages of - common applications of - compared to other languages - compared to perl development community execution speed future directions - implementation alternatives - new windows options