Python's basic power can be extended with your own modules written in C or C++. On some (most?) systems such modules may be dynamically loaded. Python is also adaptable as an extension language for existing applications. See the internal documentation for hints.
If available, the script name and additional arguments thereafter are passed to the script in the Python variable sys.argv which is a list of strings (you must first import to be able to access it). If no script name is given, sys.argv is empty; if -c is used, sys.argv contains the string '-c'. Note that options interpreter by the Python interpreter or by STDWIN are not placed in sys.argv.
In interactive mode, the primary prompt is `>>>'; the second prompt (which appears when a command is not complete) is `...'. The prompts can be changed by assignment to sys.ps1 or sys.ps2. The interpreter quits when it reads an EOF at a prompt. When an unhandled exception occurs, a stack trace is printed and control returns to the primary prompt; in non-interactive mode, the interpreter exits after printing the stack trace. The interrupt signal raises the Keyboard\%Interrupt exception; other UNIX signals are not caught (except that SIGPIPE is sometimes ignored, in favor of the IOError exception). Error messages are written to stderr.
Recommended location of the interpreter.
Recommended location of the directory containing the standard modules.
Augments the default search path for module files. The format is the same as the shell's $PATH: one or more directory pathnames separated by colons. Non-existant directories are silently ignored. The default search path is installation dependent, but always begins with `.', (for example, .:/usr/local/lib/python The default search path is appended to $PYTHONPATH. The search path can be manipulated from within a Python program as the variable sys.path
If this is the name of a readable file, the Python commands in that file are executed before the first prompt is displayed in interactive mode. The file is executed in the same name space where interactive commands are executed so that objects defined or imported in it can be used without qualification in the interactive session. You can also change the prompts sys.ps1 and sys.ps2 in this file.
If this is set to a non-empty string it is equivalent to specifying the -d option.
If this is set to a non-empty string it is equivalent to specifying the -i option.
If this is set to a non-empty string it is equivalent to specifying the -s option.
If this is set to a non-empty string it is equivalent to specifying the -u option.
If this is set to a non-empty string it is equivalent to specifying the -v option.
Python Library Reference
Python Reference Manual
STDWIN under X11
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