home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
SGI Freeware 2002 November
/
SGI Freeware 2002 November - Disc 3.iso
/
dist
/
fw_python.idb
/
usr
/
freeware
/
catman
/
u_man
/
cat1
/
python.Z
/
python
Wrap
Text File
|
2000-01-25
|
12KB
|
331 lines
PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888))))
NNNNAAAAMMMMEEEE
python - an interpreted, interactive, object-oriented
programming language
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
ppppyyyytttthhhhoooonnnn [ ----dddd ] [ ----iiii ] [ ----OOOO ] [ ----SSSS ] [ ----tttt ] [ ----uuuu ] [ ----vvvv ] [ ----xxxx
] [ ----XXXX ]
[ ----cccc _c_o_m_m_a_n_d | _s_c_r_i_p_t | - ] [ _a_r_g_u_m_e_n_t_s ]
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
Python is an interpreted, interactive, object-oriented
programming language that combines remarkable power with
very clear syntax. For an introduction to programming in
Python you are referred to the Python Tutorial. The Python
Library Reference documents built-in and standard types,
constants, functions and modules. Finally, the Python
Reference Manual describes the syntax and semantics of the
core language in (perhaps too) much detail.
Python's basic power can be extended with your own modules
written in C or C++. On 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.
CCCCOOOOMMMMMMMMAAAANNNNDDDD LLLLIIIINNNNEEEE OOOOPPPPTTTTIIIIOOOONNNNSSSS
----dddd Turn on parser debugging output (for wizards only,
depending on compilation options).
----iiii When a script is passed as first argument or the ----cccc
option is used, enter interactive mode after executing
the script or the command. It does not read the
$PYTHONSTARTUP file. This can be useful to inspect
global variables or a stack trace when a script raises
an exception.
----OOOO Turn on basic optimizations. This changes the filename
extension for compiled (bytecode) files from ._p_y_c to
_p_y_o.
----SSSS Disable the import of the module _s_i_t_e and the site-
dependent manipulations of _s_y_s._p_a_t_h that it entails.
----tttt Issue a warning when a source file mixes tabs and
spaces for indentation in a way that makes it depend on
the worth of a tab expressed in spaces. Issue an error
when the option is given twice.
----uuuu Force stdin, stdout and stderr to be totally
unbuffered.
----vvvv Print a message each time a module is initialized,
Page 1 (printed 11/20/99)
PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888))))
showing the place (filename or built-in module) from
which it is loaded.
----xxxx Skip the first line of the source. This is intended
for a DOS specific hack only. Warning: the line
numbers in error messages will be off by one!
----XXXX Make the standard exceptions strings instead of
classes. Use for backward compatibility with old code
only.
----cccc _c_o_m_m_a_n_d
Specify the command to execute (see next section).
This terminates the option list (following options are
passed as arguments to the command).
IIIINNNNTTTTEEEERRRRPPPPRRRREEEETTTTEEEERRRR IIIINNNNTTTTEEEERRRRFFFFAAAACCCCEEEE
The interpreter interface resembles that of the UNIX shell:
when called with standard input connected to a tty device,
it prompts for commands and executes them until an EOF is
read; when called with a file name argument or with a file
as standard input, it reads and executes a _s_c_r_i_p_t from that
file; when called with ----cccc _c_o_m_m_a_n_d, it executes the Python
statement(s) given as _c_o_m_m_a_n_d. Here _c_o_m_m_a_n_d may contain
multiple statements separated by newlines. Leading
whitespace is significant in Python statements! In non-
interactive mode, the entire input is parsed befored it is
executed.
If available, the script name and additional arguments
thereafter are passed to the script in the Python variable
_s_y_s._a_r_g_v , which is a list of strings (you must first _i_m_p_o_r_t
_s_y_s to be able to access it). If no script name is given,
_s_y_s._a_r_g_v is empty; if ----cccc is used, _s_y_s._a_r_g_v[_0] contains the
string '-_c'. Note that options interpreted by the Python
interpreter itself are not placed in _s_y_s._a_r_g_v.
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 _s_y_s._p_s_1
or _s_y_s._p_s_2. 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 _K_e_y_b_o_a_r_d_-
_I_n_t_e_r_r_u_p_t exception; other UNIX signals are not caught
(except that SIGPIPE is sometimes ignored, in favor of the
_I_O_E_r_r_o_r exception). Error messages are written to stderr.
FFFFIIIILLLLEEEESSSS AAAANNNNDDDD DDDDIIIIRRRREEEECCCCTTTTOOOORRRRIIIIEEEESSSS
These are subject to difference depending on local
installation conventions:
Page 2 (printed 11/20/99)
PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888))))
/usr/local/bin/python
Recommended location of the interpreter.
/usr/local/lib/python<version>
Recommended location of the directory containing the
standard modules.
EEEENNNNVVVVIIIIRRRROOOONNNNMMMMEEEENNNNTTTT VVVVAAAARRRRIIIIAAAABBBBLLLLEEEESSSS
PYTHONHOME
Change the location of the standard Python libraries.
By default, the libraries are searched in
<prefix>/lib/python<version> and
<exec_prefix>/lib/python<version>, where <prefix> and
<exec_prefix> are installation-dependent directories,
both defaulting to /usr/local. When $PYTHONHOME is set
to a single directory, its value replaces both <prefix>
and <exec_prefix>. To specify different values for
these, set $PYTHONHOME to <prefix>:<exec_prefix>.
PYTHONPATH
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 generally begins
with <prefix>/lib/python<version> (see PYTHONHOME
below). The default search path is always appended to
$PYTHONPATH. If a script argument is given, the
directory containing the script is inserted in the path
in front of $PYTHONPATH. The search path can be
manipulated from within a Python program as the
variable _s_y_s._p_a_t_h .
PYTHONSTARTUP
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
_s_y_s._p_s_1 and _s_y_s._p_s_2 in this file.
PYTHONDEBUG
If this is set to a non-empty string it is equivalent
to specifying the ----dddd option.
PYTHONINSPECT
If this is set to a non-empty string it is equivalent
to specifying the ----iiii option.
PYTHONUNBUFFERED
Page 3 (printed 11/20/99)
PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888))))
If this is set to a non-empty string it is equivalent
to specifying the ----uuuu option.
PYTHONVERBOSE
If this is set to a non-empty string it is equivalent
to specifying the ----vvvv option.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
Python Tutorial
Python Library Reference
Python Reference Manual
AAAAUUUUTTTTHHHHOOOORRRR
Guido van Rossum
CNRI
1895 Preston White Drive
Reston, VA 20191
USA
E-mail: guido@cnri.reston.va.us, guido@python.org
And a cast of thousands.
IIIINNNNTTTTEEEERRRRNNNNEEEETTTT RRRREEEESSSSOOOOUUUURRRRCCCCEEEESSSS
Web site: http://www.python.org
FTP site: ftp://ftp.python.org
Newsgroup: comp.lang.python
CCCCOOOOPPPPYYYYRRRRIIIIGGGGHHHHTTTT
Copyright 1991-1995 by Stichting Mathematisch Centrum,
Amsterdam, The Netherlands.
All Rights Reserved
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting
documentation, and that the names of Stichting Mathematisch
Centrum or CWI or Corporation for National Research
Initiatives or CNRI not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission.
While CWI is the initial source for this software, a
modified version is made available by the Corporation for
National Research Initiatives (CNRI) at the Internet address
ftp://ftp.python.org.
STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
Page 4 (printed 11/20/99)
PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888)))) UUUUNNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV PPPPYYYYTTTTHHHHOOOONNNN((((11110000 AAAApppprrrriiiillll,,,, 1111999999998888))))
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL STICHTING MATHEMATISCH CENTRUM OR CNRI BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
THE USE OR PERFORMANCE OF THIS SOFTWARE.
Page 5 (printed 11/20/99)