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1. Introduction

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The Python Standard Library and What Comes with JythonΒΆ

Date:March 02, 2011

While The Python Language Reference describes the exact syntax and semantics of the Python language, this library reference manual describes the standard library that is distributed with Jython. It also describes some of the optional components that are commonly included in Python distributions.

Python’s standard library is very extensive, offering a wide range of facilities. The library contains built-in modules (written in C) that provide access to system functionality such as file I/O that would otherwise be inaccessible to Python programmers, as well as modules written in Python that provide standardized solutions for many problems that occur in everyday programming. Some of these modules are explicitly designed to encourage and enhance the portability of Python programs by abstracting away platform-specifics into platform-neutral APIs.

Unlike the CPython distribution, Jython does not include built-in libraries written in C as they will not work on the Java platform. Instead, there are certain libraries that have been re-written in the Java languages to be included with Jython. Likewise, most of the modules written in Python are included with the Jython distribution as any Python that does not use C extensions should work on Jython.

In addition to the standard library, there is a growing collection of several thousand components (from individual programs and modules to packages and entire application development frameworks), available from the Python Package Index. Many of these can be used with Jython as well.

Note that this portion of the documentation is currently in progress, and therefore, it is incomplete at this time.