[SciPy-dev] Version problems between fastumath in scipy_base and Numeric

[David C. Morrill]

We've recently run into a problem with the Windows Installer version of
Chaco: If the version of Numeric used to build fastumath (in scipy_base)
when constructing the Installer executable is not exactly the same as the
version of Numeric on the installing user's Windows machine, errors occur,
as illustrated by the following Chaco traceback reported by several users:

Traceback (most recent call last):
  File "C:\Python22\Lib\site-packages\chaco\wxplot_window.py", line 238, in
_min_size
    dx, dy = canvas._min_size()
  File "C:\Python22\Lib\site-packages\chaco\plot_canvas.py", line 2006, in
_min_size
    tdx, tdy             = item._min_size()
  File "C:\Python22\Lib\site-packages\chaco\plot_canvas.py", line 423, in
_min_size
    axes_info = AxesInfo( index_axis, values, process_index )
  File "C:\Python22\Lib\site-packages\chaco\plot_info.py", line 426, in
__init__
    self.add_axes( values )
  File "C:\Python22\Lib\site-packages\chaco\plot_info.py", line 443, in
add_axes
    self.process_axes()
  File "C:\Python22\Lib\site-packages\chaco\plot_info.py", line 522, in
process_axes
    axis_info._min_size()
  File "C:\Python22\Lib\site-packages\chaco\plot_info.py", line 731, in
_min_size
    axis.tick_interval )
  File "C:\Python22\Lib\site-packages\chaco\plot_ticks.py", line 67, in
auto_ticks
    if is_base2( rng ) and is_base2( upper ) and rng > 4:
  File "C:\Python22\Lib\site-packages\chaco\plot_ticks.py", line 121, in
is_base2
    return ((lg == floor( lg )) and (lg > 0.0))
TypeError: function not supported for these types, and can't coerce to
supported types

Eric thinks fastumath used to be more insensitive to the versions of Numeric
used by builder and installer. Does anyone have any idea what the problem
might be?

Dave Morrill