the rest in Signature.__str__. #20356

PyMethodDescr_Type, _PyMethodWrapper_Type, and PyWrapperDescr_Type)
have been modified to provide introspection information for builtins.
Also: many additional Lib, test suite, and Argument Clinic fixes.

- cross-references and attributions for inspect changes
- note improvements to inspect and pydoc handling of
  metaclasses and dynamic attributes (courtesy of the
  enum PEP)
- group all CPython implementation specific changes
  into a common section
- add see also links for most of the PEPs
- fix the see also link for the release PEP
- add suitable caveats on Argument Clinic inclusion
- clarify the change to __wrapped__ handling

Order of search is now:
  1. Try getattr
  2. If that throws an exception, check __dict__ directly
  3. If still not found, walk the mro looking for the eldest class that has
     the attribute (e.g. things returned by __getattr__)
  4. If none of that works (e.g. due to a buggy __dir__, __getattr__, etc.
     method or missing __slot__ attribute), ignore the attribute entirely.

Close #18929: inspect.classify_class_attrs will now search the metaclasses (last) to find where an attr was defined.

Issue #17934: Add a clear() method to frame objects, to help clean up expensive details (local variables) and break reference cycles.

Initial patch by Daniel Urban and Aaron Iles

Closes #4159: add LaTeX tabular column specifications to tables that otherwise are cut off or have overlapping text.

Patch by Berker Peksag.

Also minor formatting cleanups.

Also minor formatting cleanups.

Initial patch by Yury Selivanov

Close #15387: inspect.getmodulename() now uses a new importlib.machinery.all_suffixes() API rather than the deprecated inspect.getmoduleinfo()

Close #15153: Added inspect.getgeneratorlocals to simplify whitebox testing of generator state updates

importlib.machinery that provide the suffix details for import.
The attributes were not put on imp so as to compartmentalize
everything importlib needs for setting up imports in
importlib.machinery.

This also led to an indirect deprecation of inspect.getmoduleinfo() as
it directly returned imp.get_suffix's returned tuple which no longer
makes sense.

Existing links have been updated to use the new reST role.  In some
files, I have also made cosmetic changes to the header.

svn+ssh://svn.python.org/python/branches/py3k

........
  r87789 | georg.brandl | 2011-01-06 10:23:56 +0100 (Do, 06 Jan 2011) | 1 line

  Fix various issues (mostly Python 2 relics) found by Jacques Ducasse.
........
  r87790 | georg.brandl | 2011-01-06 10:25:27 +0100 (Do, 06 Jan 2011) | 1 line

  Add acks where acks are due.
........

svn+ssh://svn.python.org/python/branches/py3k

........
  r85530 | georg.brandl | 2010-10-15 17:32:05 +0200 (Fr, 15 Okt 2010) | 1 line

  Refrain from using inline suites.
........
  r85532 | georg.brandl | 2010-10-15 18:03:02 +0200 (Fr, 15 Okt 2010) | 1 line

  #7771: reference to documentation of dictview methods and operations.
........
  r85533 | georg.brandl | 2010-10-15 18:07:41 +0200 (Fr, 15 Okt 2010) | 1 line

  #9683: remove broken dead code dealing with nested arguments removed from Py3k, and update the docs and docstrings accordingly.
........
  r85534 | georg.brandl | 2010-10-15 18:19:43 +0200 (Fr, 15 Okt 2010) | 1 line

  #9801: document how list and dict proxies created by Managers behave w.r.t. mutable items.
........
  r85538 | georg.brandl | 2010-10-15 18:35:46 +0200 (Fr, 15 Okt 2010) | 1 line

  #7303: add documentation for useful pkgutil functions and classes.
........
  r85539 | georg.brandl | 2010-10-15 18:42:14 +0200 (Fr, 15 Okt 2010) | 1 line

  Fix issue references.
........
  r85540 | georg.brandl | 2010-10-15 18:42:37 +0200 (Fr, 15 Okt 2010) | 1 line

  #6798: fix wrong docs for the arguments to several trace events.
........
  r85541 | georg.brandl | 2010-10-15 18:53:24 +0200 (Fr, 15 Okt 2010) | 1 line

  #4968: updates to inspect.is* function docs.
........
  r85542 | georg.brandl | 2010-10-15 19:01:15 +0200 (Fr, 15 Okt 2010) | 1 line

  #7790: move table of struct_time members to the actual description of struct_time.
........
  r85543 | georg.brandl | 2010-10-15 19:03:02 +0200 (Fr, 15 Okt 2010) | 1 line

  #4785: document strict argument of JSONDecoder, plus add object_pairs_hook in the docstrings.
........
  r85546 | georg.brandl | 2010-10-15 19:58:45 +0200 (Fr, 15 Okt 2010) | 1 line

  #5762: fix handling of empty namespace in minidom, which would result in AttributeError on toxml().
........
  r85547 | georg.brandl | 2010-10-15 20:00:35 +0200 (Fr, 15 Okt 2010) | 1 line

  #6098: Refrain from claiming DOM level 3 conformance in minidom.
........
  r85548 | georg.brandl | 2010-10-15 21:46:19 +0200 (Fr, 15 Okt 2010) | 1 line

  #10072: assume a bit less knowledge of the FTP protocol in the ftplib docs.
........

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85530 | georg.brandl | 2010-10-15 17:32:05 +0200 (Fr, 15 Okt 2010) | 1 line

  Refrain from using inline suites.
........
  r85534 | georg.brandl | 2010-10-15 18:19:43 +0200 (Fr, 15 Okt 2010) | 1 line

  #9801: document how list and dict proxies created by Managers behave w.r.t. mutable items.
........
  r85538 | georg.brandl | 2010-10-15 18:35:46 +0200 (Fr, 15 Okt 2010) | 1 line

  #7303: add documentation for useful pkgutil functions and classes.
........
  r85540 | georg.brandl | 2010-10-15 18:42:37 +0200 (Fr, 15 Okt 2010) | 1 line

  #6798: fix wrong docs for the arguments to several trace events.
........
  r85541 | georg.brandl | 2010-10-15 18:53:24 +0200 (Fr, 15 Okt 2010) | 1 line

  #4968: updates to inspect.is* function docs.
........
  r85542 | georg.brandl | 2010-10-15 19:01:15 +0200 (Fr, 15 Okt 2010) | 1 line

  #7790: move table of struct_time members to the actual description of struct_time.
........

Also add a note about inheritance from `object` being default.