so that ``help('@')`` works as expected.

Patch by Gabriel Genellina.

Update outdated copy of PyUnicode_EncodeRawUnicodeEscape.
Add a test case.

Make the _PyUnicode_Resize macro a static function.

These changes are needed to avoid breaking strict aliasing rules.

(There is no behavior difference in 2.x because HIGHEST_PROTOCOL == 2)

ensures that when you try to read from a file opened for writing an IOError
is raised.

svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

........
  r67809 | benjamin.peterson | 2008-12-15 21:54:45 -0600 (Mon, 15 Dec 2008) | 1 line

  fix logic error
........

Will port to 3.0

* Replace dramatic footnote with in-line comment about possible round-off errors in logarithms of large numbers.
* Add comments to the pure python code equivalent.
* replace floor() with int() in the mathematical equivalent so the type is correct (should be an int, not a float).
* add abs() to the mathematical equivalent so that it matches the previous line that it is supposed to be equivalent to.
* make one combined example with a negative input.

Thanks Ned Deily.