#1550: help('modules') broken by several 3rd party libraries.
Tested with Python build: trunk:54235:59936M -- the reported error
occurs with Django installed (or with any __init__.py present on
the path that raises an exception), and such errors indeed go away
when this change is applied.
inspect.py, and pydoc.py. Specifically, this allows for querying the type of
an object against these built-in C types and more importantly, for getting
their docstrings printed in the interactive interpreter's help() function.
This patch includes a new built-in module called _types which provides
definitions of getset and member descriptors for use by the types.py module.
These types are exposed as types.GetSetDescriptorType and
types.MemberDescriptorType. Query functions are provided as
inspect.isgetsetdescriptor() and inspect.ismemberdescriptor(). The
implementations of these are robust enough to work with Python implementations
other than CPython, which may not have these fundamental types.
The patch also includes documentation and test suite updates.
I commit these changes now under these guiding principles:
1. Silence is assent. The release manager has not said "no", and of the few
people that cared enough to respond to the thread, the worst vote was "0".
2. It's easier to ask for forgiveness than permission.
3. It's so dang easy to revert stuff in svn, that you could view this as a
forcing function. :)
Windows build patches will follow.
to share common PEP 302 support code, as described here:
http://mail.python.org/pipermail/python-dev/2006-April/063724.html
pydoc now supports PEP 302 importers, by way of utility functions in
pkgutil, such as 'walk_packages()'. It will properly document
modules that are in zip files, and is backward compatible to Python
2.3 (setuptools installs for Python <2.5 will bundle it so pydoc
doesn't break when used with eggs.)
What has not changed is that pydoc command line options do not support
zip paths or other importer paths, and the webserver index does not
support sys.meta_path. Those are probably okay as limitations.
Tasks remaining: write docs and Misc/NEWS for pkgutil/pydoc changes,
and update setuptools to use pkgutil wherever possible, then add it
to the stdlib.
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.
The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
Thanks to Robert Dick <dickrp@ece.northwestern.edu> for reporting this bug
and submitting a patch.
Adjust doc(object) to display useful documentation for plain values (e.g.
help([]) now shows the methods on the list instead of just printing "[]").
(This change has been tested interactively, by generating docs for the
standard library, and by running the module documentation webserver.)
properties, and custom descriptors.
* removed special handling of properties
* added special handling of data descriptors - All data descriptors are grouped
together in a section. For each item, the attribute name and doc string, if
present, is displayed.
* disabled display of __slots__ attribute - since slots are descriptors, they
are listed in the section described above
Thanks to John Belmonte for the patch!
Georg Brandl
Brett Cannon
Nick Coghlan
Alexandre Vassalotti
Andrew M. Kuchling
Ka-Ping Yee
Barry Warsaw
Phillip J. Eby
Fred Drake
Jeremy Hylton
Raymond Hettinger
Johannes Gijsbers
Martin v. Löwis
Skip Montanaro