bzrk / bzr viz not showing graphical representation of branch history [Was: Re: negative numbers of revisions pulled ??]

[Martin Pool]

On 13/05/2006, at 4:38 AM, Joseph Wakeling wrote:
>
> To reiterate the problem: I'm not seeing the graphical  
> representation of
> the branch history that one should see in bzrk/bzr viz, as shown in
> http://people.ubuntu.com/~scott/software/bzrk.png .  The column that
> should contain the graphics is just blank.  Resizing it (as per an
> earlier comment:-) doesn't help.
>
> I'm using bzr 0.8, bzrtools 0.8 and bzrk as downloaded from
> http://bazaar.launchpad.net/~bzrk/bzrk/dev .  My desktop is KDE  
> 3.4.2 on
> SUSE 10.0.  Python is 2.4.1, python-gtk is 2.8.0, cairo is 1.0.0, and
> pycairo is 1.0.0.
>
> ... any ideas?  The one thing that occurs to me is that pycairo might
> not be installed properly, but would the rest of bzrk work without it?

That's certainly what it sounds like to me.  To make a further wild  
guess, the PyCairo bindings are not carefully checking the return  
code from cairo, and so it continues to run without noticing there's  
nothing there.

-- 
Martin