platform_external_python_cpython2/Demo/classes, branch master

Merged revisions 82594,82599 via svnmerge from

2010-07-27T08:45:35+00:00

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

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  r82594 | georg.brandl | 2010-07-05 22:13:41 +0200 (Mo, 05 Jul 2010) | 1 line

  Update Vec class constructor, remove indirection via function, use operator module.
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  r82599 | alexander.belopolsky | 2010-07-05 23:44:05 +0200 (Mo, 05 Jul 2010) | 1 line

  "Modernized" the demo a little.
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remove svn:executable from scripts without a shebang line

2010-03-08T02:11:06+00:00

Update uses of string exceptions

2008-09-13T01:57:25+00:00

Subclass exception

2008-09-13T01:48:36+00:00

#687648 from Robert Schuppenies: use classic division. From me: don't use string exception; add main section

2008-09-13T01:34:41+00:00

#2503 make singletons compared with "is" not == or !=

2008-03-29T15:24:25+00:00

Thanks to Wummel for the patch

Remove reference to Rational

2008-02-10T19:23:36+00:00

Add rational.Rational as an implementation of numbers.Rational with infinite

2008-01-15T07:46:24+00:00

precision. This has been discussed at http://bugs.python.org/issue1682. It's
useful primarily for teaching, but it also demonstrates how to implement a
member of the numeric tower, including fallbacks for mixed-mode arithmetic.

I expect to write a couple more patches in this area:
 * Rational.from_decimal()
 * Rational.trim/approximate() (maybe with different names)
 * Maybe remove the parentheses from Rational.__str__()
 * Maybe rename one of the Rational classes
 * Maybe make Rational('3/2') work.

Normalized a few cases of whitespace in function declarations.

2006-06-06T12:46:55+00:00

Found them using::

  find . -name '*.py' | while read i ; do grep 'def[^(]*( ' $i /dev/null ; done
  find . -name '*.py' | while read i ; do grep ' ):' $i /dev/null ; done

(I was doing this all over my own code anyway, because I'd been using spaces in
all defs, so I thought I'd make a run on the Python code as well.  If you need
to do such fixes in your own code, you can use xx-rename or parenregu.el within
emacs.)

* Fix error in definition of Im() which returned self instead of 0

2005-04-09T14:55:07+00:00

  for non-complex arguments.

* Replace type() comparisons with isinstance() checks.

* Replace apply() calls with equivalent syntactic form.

* Simplify __hash__ definition to hash the underlying tuple.

* Use math.hypot() for more robust computation of __abs__().

* Use sorted() instead of the multi-step keys/sort/iter.

* Update comment on the cmath module.