I had similar trouble and asked a similar question to this list
about a year ago. The replies were not at all encouraging. See:
The response from the Pmw folks boiled down to "Don't use BLT".
Oddly, the Pmw web pages still have Pmw.Blt info...
I did have some success with BLT 2.4u and Python 2.2. I have not
tried this with Python 2.3. Support and development for BLT seems
to have evaporated and only BLT 2.4z can be found from searching the
tcl/tk sites. A copy of BLT 2.4u is at
I cannot offer any support for this, and can only wish you luck.
For myself, I am moving away from Pmw.Blt as quickly as I can
towards matplotlib which is being actively developed, offers many
advantages over Pmw.Blt.graph, and can work with Tkinter and other
Hope that helps,
--Matt Newville <newville at cars.uchicago.edu>
On Fri, 14 May 2004, Jonathon McKitrick wrote:
> Hi all,
> I am terribly frustrated with BLT at the moment. BLT runs its own demos
> fine, but Pmw cannot find BLT. I have tried rebuilding and reinstalling BLT
> and Pmw and Python, but no change.
> Does anyone know the trick here?
> I'm running FreeBSD 4.9, Python 2.3.3, Pmw 1.2, Tcl/Tk 8.4.6, and BLT 2.4z.