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SourceLoader is a simplification of both PyLoader and PyPycLoader. If one only wants to use source, then they need to only implement get_data and get_filename. To also use bytecode -- sourceless loading is not supported -- then two abstract methods -- path_mtime and set_data -- need to be implemented. Compared to PyLoader and PyPycLoader, there are less abstract methods introduced and bytecode files become an optimization controlled by the ABC and hidden from the user (this need came about as PEP 3147 showed that not treating bytecode as an optimization can cause problems for compatibility). PyLoader is deprecated in favor of SourceLoader. To be compatible from Python 3.1 onwards, a subclass need only use simple methods for source_path and is_package. Otherwise conditional subclassing based on whether Python 3.1 or Python 3.2 is being is the only change. The documentation and docstring for PyLoader explain what is exactly needed. PyPycLoader is deprecated also in favor of SourceLoader. Because PEP 3147 shifted bytecode path details so much, there is no foolproof way to provide backwards-compatibility with SourceLoader. Because of this the class is simply deprecated and users should move to SourceLoader (and optionally PyLoader for Python 3.1). This does lead to a loss of support for sourceless loading unfortunately. At some point before Python 3.2 is released, SourceLoader will be moved over to importlib._bootstrap so that the core code of importlib relies on the new code instead of the old PyPycLoader code. This commit is being done now so that there is no issue in having the API in Python 3.1a1. |
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| .. | ||
| c-api | ||
| data | ||
| distutils | ||
| documenting | ||
| extending | ||
| faq | ||
| howto | ||
| includes | ||
| install | ||
| library | ||
| reference | ||
| tools | ||
| tutorial | ||
| using | ||
| whatsnew | ||
| about.rst | ||
| ACKS.txt | ||
| bugs.rst | ||
| conf.py | ||
| contents.rst | ||
| copyright.rst | ||
| glossary.rst | ||
| license.rst | ||
| make.bat | ||
| Makefile | ||
| README.txt | ||
Python Documentation README ~~~~~~~~~~~~~~~~~~~~~~~~~~~ This directory contains the reStructuredText (reST) sources to the Python documentation. You don't need to build them yourself, prebuilt versions are available at http://docs.python.org/download/. Documentation on the authoring Python documentation, including information about both style and markup, is available in the "Documenting Python" chapter of the documentation. There's also a chapter intended to point out differences to those familiar with the previous docs written in LaTeX. Building the docs ================= You need to have Python 2.4 or higher installed; the toolset used to build the docs is written in Python. It is called *Sphinx*, it is not included in this tree, but maintained separately. Also needed are the docutils, supplying the base markup that Sphinx uses, Jinja, a templating engine, and optionally Pygments, a code highlighter. Using make ---------- Luckily, a Makefile has been prepared so that on Unix, provided you have installed Python and Subversion, you can just run :: make html to check out the necessary toolset in the `tools/` subdirectory and build the HTML output files. To view the generated HTML, point your favorite browser at the top-level index `build/html/index.html` after running "make". To use a Python interpreter that's not called ``python``, use the standard way to set Makefile variables, using e.g. :: make html PYTHON=/usr/bin/python2.5 Available make targets are: * "html", which builds standalone HTML files for offline viewing. * "htmlhelp", which builds HTML files and a HTML Help project file usable to convert them into a single Compiled HTML (.chm) file -- these are popular under Microsoft Windows, but very handy on every platform. To create the CHM file, you need to run the Microsoft HTML Help Workshop over the generated project (.hhp) file. * "latex", which builds LaTeX source files as input to "pdflatex" to produce PDF documents. * "text", which builds a plain text file for each source file. * "linkcheck", which checks all external references to see whether they are broken, redirected or malformed, and outputs this information to stdout as well as a plain-text (.txt) file. * "changes", which builds an overview over all versionadded/versionchanged/ deprecated items in the current version. This is meant as a help for the writer of the "What's New" document. * "coverage", which builds a coverage overview for standard library modules and C API. * "pydoc-topics", which builds a Python module containing a dictionary with plain text documentation for the labels defined in `tools/sphinxext/pyspecific.py` -- pydoc needs these to show topic and keyword help. A "make update" updates the Subversion checkouts in `tools/`. Without make ------------ You'll need to install the Sphinx package, either by checking it out via :: svn co http://svn.python.org/projects/external/Sphinx-0.6.5/sphinx tools/sphinx or by installing it from PyPI. Then, you need to install Docutils, either by checking it out via :: svn co http://svn.python.org/projects/external/docutils-0.6/docutils tools/docutils or by installing it from http://docutils.sf.net/. You also need Jinja2, either by checking it out via :: svn co http://svn.python.org/projects/external/Jinja-2.3.1/jinja2 tools/jinja2 or by installing it from PyPI. You can optionally also install Pygments, either as a checkout via :: svn co http://svn.python.org/projects/external/Pygments-1.3.1/pygments tools/pygments or from PyPI at http://pypi.python.org/pypi/Pygments. Then, make an output directory, e.g. under `build/`, and run :: python tools/sphinx-build.py -b<builder> . build/<outputdirectory> where `<builder>` is one of html, text, latex, or htmlhelp (for explanations see the make targets above). Contributing ============ Bugs in the content should be reported to the Python bug tracker at http://bugs.python.org. Bugs in the toolset should be reported in the Sphinx bug tracker at http://www.bitbucket.org/birkenfeld/sphinx/issues/. You can also send a mail to the Python Documentation Team at docs@python.org, and we will process your request as soon as possible. If you want to help the Documentation Team, you are always welcome. Just send a mail to docs@python.org. Copyright notice ================ The Python source is copyrighted, but you can freely use and copy it as long as you don't change or remove the copyright notice: ---------------------------------------------------------------------- Copyright (c) 2000-2008 Python Software Foundation. All rights reserved. Copyright (c) 2000 BeOpen.com. All rights reserved. Copyright (c) 1995-2000 Corporation for National Research Initiatives. All rights reserved. Copyright (c) 1991-1995 Stichting Mathematisch Centrum. All rights reserved. See the file "license.rst" for information on usage and redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. ----------------------------------------------------------------------