[ros-users] bug in smach

Lorenzo Riano lorenzo.riano at gmail.com
Sun Jul 31 17:22:11 UTC 2011

Glad to help!  I think that, although smach is a impressive library, the
data passing mechanism could use some improvement. Please let me know if I
can do anything else to help.


On 30 July 2011 13:40, Jonathan Bohren <jonathan.bohren at gmail.com> wrote:

> On Sat, Jul 30, 2011 at 7:30 AM, Lorenzo Riano <lorenzo.riano at gmail.com>wrote:
>> It is really too long to post it. A google search reports that the same
>> problem happens in other packages when reimplementing the __getattr__
>> function.
>> I will try to reproduce it with a shorter code. The funny thing is that it
>> depends on the length of the stack of the function calls: it shows up when
>> the stack has length one, it doesn't when it's zero or two. The code works
>> the same anyway, it's only that the message it quite annoying.
> Yeah, it looks like something additional needs to be done in the smach
> UserData class to prevent this from happening. I'll look into it, don't
> worry about a minimal example.
> Thanks for bringing this up!
> -j
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Lorenzo Riano, PhD
Research Associate
Intelligent Systems Research Centre
University of Ulster
Magee campus
BT48 7JL

phone: +44 (0)28 71375187
email: l.riano at ulster.ac.uk, lorenzo.riano at gmail.com
skype: lorenzo.riano

Webpage: http://isrc.ulster.ac.uk/Staff/LRiano/Contact.html
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