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author | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
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committer | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
commit | 458120dd40db6b4df55a4e96b650e16798ef06a0 (patch) | |
tree | 8f82685be24fef97e715c6f5ca4c68d34d5074ee /sys/src/cmd/python/Doc/lib/libintro.tex | |
parent | 3a742c699f6806c1145aea5149bf15de15a0afd7 (diff) |
add hg and python
Diffstat (limited to 'sys/src/cmd/python/Doc/lib/libintro.tex')
-rw-r--r-- | sys/src/cmd/python/Doc/lib/libintro.tex | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sys/src/cmd/python/Doc/lib/libintro.tex b/sys/src/cmd/python/Doc/lib/libintro.tex new file mode 100644 index 000000000..62434cd6b --- /dev/null +++ b/sys/src/cmd/python/Doc/lib/libintro.tex @@ -0,0 +1,53 @@ +\chapter{Introduction} +\label{intro} + +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 \emph{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 +\refmodule{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{builtin}, ``Built-in Types, Exceptions and +Functions,'' as the remainder of the manual assumes familiarity with +this material. + +Let the show begin! |