mirror of
https://github.com/python/cpython.git
synced 2024-12-23 00:34:40 +08:00
d80344f8d3
svn+ssh://svn.python.org/python/branches/py3k
(Selected changes only.)
................
r74055 | alexandre.vassalotti | 2009-07-17 11:18:18 +0200 (Fr, 17 Jul 2009) | 55 lines
Merged revisions 73995,74002,74005,74007-74008,74011,74019-74023 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r74008 | benjamin.peterson | 2009-07-14 20:46:42 -0400 (Tue, 14 Jul 2009) | 1 line
update year
........
r74011 | ezio.melotti | 2009-07-15 13:07:04 -0400 (Wed, 15 Jul 2009) | 1 line
methods' names pep8ification
........
r74019 | amaury.forgeotdarc | 2009-07-15 17:29:27 -0400 (Wed, 15 Jul 2009) | 2 lines
#6076 Add a title to the IDLE Preferences window.
........
r74020 | georg.brandl | 2009-07-16 03:18:07 -0400 (Thu, 16 Jul 2009) | 1 line
#5910: fix kqueue for calls with more than one event.
........
r74021 | georg.brandl | 2009-07-16 03:33:04 -0400 (Thu, 16 Jul 2009) | 1 line
#6486: start with built in functions rather than "built in objects".
........
r74022 | georg.brandl | 2009-07-16 03:38:35 -0400 (Thu, 16 Jul 2009) | 1 line
#6481: fix typo in os.system() replacement.
........
r74023 | jesse.noller | 2009-07-16 10:23:04 -0400 (Thu, 16 Jul 2009) | 1 line
Issue 6433: multiprocessing.pool.map hangs on empty list
........
................
52 lines
2.7 KiB
ReStructuredText
52 lines
2.7 KiB
ReStructuredText
.. _library-intro:
|
|
|
|
************
|
|
Introduction
|
|
************
|
|
|
|
The "Python library" contains several different kinds of components.
|
|
|
|
It contains data types that would normally be considered part of the "core" of a
|
|
language, such as numbers and lists. For these types, the Python language core
|
|
defines the form of literals and places some constraints on their semantics, but
|
|
does not fully define the semantics. (On the other hand, the language core does
|
|
define syntactic properties like the spelling and priorities of operators.)
|
|
|
|
The library also contains built-in functions and exceptions --- objects that can
|
|
be used by all Python code without the need of an :keyword:`import` statement.
|
|
Some of these are defined by the core language, but many are not essential for
|
|
the core semantics and are only described here.
|
|
|
|
The bulk of the library, however, consists of a collection of modules. There are
|
|
many ways to dissect this collection. Some modules are written in C and built
|
|
in to the Python interpreter; others are written in Python and imported in
|
|
source form. Some modules provide interfaces that are highly specific to
|
|
Python, like printing a stack trace; some provide interfaces that are specific
|
|
to particular operating systems, such as access to specific hardware; others
|
|
provide interfaces that are specific to a particular application domain, like
|
|
the World Wide Web. Some modules are available in all versions and ports of
|
|
Python; others are only available when the underlying system supports or
|
|
requires them; yet others are available only when a particular configuration
|
|
option was chosen at the time when Python was compiled and installed.
|
|
|
|
This manual is organized "from the inside out:" it first describes the built-in
|
|
data types, then the built-in functions and exceptions, and finally the modules,
|
|
grouped in chapters of related modules. The ordering of the chapters as well as
|
|
the ordering of the modules within each chapter is roughly from most relevant to
|
|
least important.
|
|
|
|
This means that if you start reading this manual from the start, and skip to the
|
|
next chapter when you get bored, you will get a reasonable overview of the
|
|
available modules and application areas that are supported by the Python
|
|
library. Of course, you don't *have* to read it like a novel --- you can also
|
|
browse the table of contents (in front of the manual), or look for a specific
|
|
function, module or term in the index (in the back). And finally, if you enjoy
|
|
learning about random subjects, you choose a random page number (see module
|
|
:mod:`random`) and read a section or two. Regardless of the order in which you
|
|
read the sections of this manual, it helps to start with chapter
|
|
:ref:`built-in-funcs`, as the remainder of the manual assumes familiarity with
|
|
this material.
|
|
|
|
Let the show begin!
|
|
|