matplotlib error with tkagg

[Todd Miller]

Federico wrote:
> Hi, I'm using python 2.2 under windows...when I use the 'Agg ' backend it
> works fine but when I try to use the 'TkAgg' one I've an error message that
> says :
> ....
> ....
> "import tkagg                 # Paint image to Tk photo blitter extension
>   File "D:\PYTHON~1.3\Lib\site-packages\matplotlib\backends\tkagg.py", line
> 1, in ?
>     import _tkagg
> ImportError: DLL load failed: " impossible to find the specified procedure

It's not just you...  I develop the TkAgg backend with Python 2.3 (on 
Linux and Solaris and win32) and didn't test the 2.2 installer for 
windows.  TkAgg is apparently broken for Python-2.2 on windows.

> 
> What do I need? 
 >

Nothing.  I think there's a bug in the way the tkagg backend is 
currently built for Windows.  The _tkagg.pyd file appears to be 
dependent on Tcl/Tk 8.4 and I think for Python-2.2 it needs 8.3.

If you're willing to upgrade to Python-2.3, you can have matplotlib with 
  TkAgg today.

Regards,
Todd Miller