ExtensionClasses in isinstance() and issubclass().

  - abstract instance and class protocols are used *only* in those
    cases that would generate errors before the patch.  That is, there's
    no penalty for the normal case.

  - instance protocol: an object smells like an instance if it
    has a __class__ attribute that smells like a class.

  - class protocol: an object smells like a class if it has a
    __bases__ attribute that is a tuple with elements that
    smell like classes (although not all elements may actually get
    sniffed ;).

confusing to end users of IDEs.

Added support for unseekable files.

(I use unqualified excepts since we don't know why the seek/tell might
fail.  In my case it was because of an AttributeError.)

and suggests putting a try/except around the get_request() call in
handle_request().  (All in class TCPServer.)

only by the interpreter core and is not overridable by objects.

Based on comment from David Ascher on the list.

Problem: rfc822.py in 1.5.2 final loses the quotes around
quoted local-part names.

The fix is to preserve the quotes around a local-part
name in an address.

Test:

	import rfc822
	a = rfc822.AddrlistClass('(Comment stuff) "Quoted
name"@somewhere.com')
	a.getaddrlist()

The correct result is:

	[('Comment stuff', '"Quoted name"@somewhere.com')]

Noted that name=value is allowed in addition to name: value.

Also added a short circuit for the regression test suite since CVS
insisted on putting this file in the main branch. :(

- Don't call Py_FatalError() when initialization fails.

- Fix bogus use of return value from PyRun_String().

- Fix misc. compiler errors on some platforms.

These document CGIHTTPServer, SimpleHTTPServer, and linecache.

		       empty list instead of None.  (Guido's request.)

<mzadka@geocities.com>.

Make references to the posix module hyperlinks.

*missing* content-type at the outer level of a POST defaults to
urlencoded.  In all other circumstances, the default is read_singe().

in the string module.

Add a bunch of new tests for extended startswith/endswith arguments.

EditorWindow.py:

+ Added get_tabwidth & set_tabwidth "virtual text" methods, that get/set the
widget's view of what a tab means.

+ Moved TK_TABWIDTH_DEFAULT here from AutoIndent.

+ Renamed Mark's get_selection_index to get_selection_indices (sorry, Mark,
but the name was plain wrong <wink>).

FormatParagraph.py:  renamed use of get_selection_index.

AutoIndent.py:

+ Moved TK_TABWIDTH_DEFAULT to EditorWindow.

+ Rewrote set_indentation_params to use new VTW get/set_tabwidth methods.

+ Changed smart_backspace_event to delete whitespace back to closest
preceding virtual tab stop or real character (note that this may require
inserting characters if backspacing over a tab!).

+ Nuked almost references to the selection tag, in favor of using
get_selection_indices.  The sole exception is in set_region, for which no
"set_selection" abstraction has yet been agreed upon.

+ Had too much fun using the spiffy new features of the format-paragraph
cmd.

- Revise abstract based on Guido's comments from way back.
- Point out that LaTeX is a structured system & we're using it that
  way.
- Add a small section on marking up code examples.

from Gerry Weiner <gerry@ucar.edu>.

<sfranke@cdc-group.com>.

Franke <sfranke@cdc-group.com>.

<gerrit.holl@pobox.com>.

Read the comments (which I reformatted using the new feature :-)
for some limitations.

reformatted some comment blocks to show off a cool feature I'm about
to check in next.

<BennettBenson@mn.mediaone.net>.

this functionality is not present (e.g. when used with a vintage
Python 1.5.2 installation) top-level functions are not listed.

(Hmm...  Any distribution of IDLE 0.5 should probably include a copy
of the new pyclbr.py!)