Calling ui.traceback()

[Frank A. Kingswood]

Dirkjan Ochtman wrote:
> On Sun, Feb 21, 2010 at 07:04, Frank A. Kingswood
> <frank at kingswood-consulting.co.uk> wrote:
>   
>> Hallo!
>>
>> In the Perfarce extension I'm calling ui.traceback() in some exception
>> handlers to get some useful info when the user specifies --traceback.
>> This fails on old versions of Mercurial, where traceback can be None.
>>     
>
> How old?
>   
This would be 1.0.1 as included in Debian Lenny.
>> Changing the code to
>>
>>        if ui.traceback:ui.traceback()
>>
>> works but I'm not sure this is the right way to handle this.
>>     
>
> Why would it not be the right way?
>   
Well, I worried about what might happen if ui.traceback was something 
else in the versions in between. I see that not a lot of code calls 
ui.traceback().

Frank

-- 
------------------------------------------------------------------------
Frank A. Kingswood                      frank at kingswood-consulting.co.uk
Cambridge, United Kingdom                               +44-870-095 0000