[Python-ideas] Possible PEP 380 tweak

[Greg Ewing]

Nick Coghlan wrote:

> On Thu, Oct 28, 2010 at 6:52 PM, Jacob Holm <jh at improva.dk> wrote:

>>Looks like we are still not on exactly the same page though...  You seem
>>to be arguing from the version at
>>http://www.python.org/dev/peps/pep-0380, whereas I am looking at
>>http://mail.python.org/pipermail/python-ideas/attachments/20090419/c7d72ba8/attachment-0001.txt,
>>which is newer.
> 
> Still, the revised expansion also does the right thing in the case
> that was originally bothering me,

That attachment is slightly older than my own current draft,
which is attached below. The differences in the expansion are
as follows (- is the version linked to above, + is my current
version):

@@ -141,20 +141,21 @@
                  _s = yield _y
              except GeneratorExit as _e:
                  try:
-                    _m = getattr(_i, 'close')
+                    _m = _i.close
                  except AttributeError:
                      pass
                  else:
                      _m()
                  raise _e
              except BaseException as _e:
+                _x = sys.exc_info()
                  try:
-                    _m = getattr(_i, 'throw')
+                    _m = _i.throw
                  except AttributeError:
                      raise _e
                  else:
                      try:
-                        _y = _m(*sys.exc_info())
+                        _y = _m(*_x)
                      except StopIteration as _e:
                          _r = _e.value
                          break

Does this version still address your concerns? If so, please
check it in as the latest version.

-- 
Greg

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