Re: [HTCondor-users] core dump in python bindings

[Tim Theisen <tim@xxxxxxxxxxx>]

Which version of the Python bindings are you using?

For HTCondor 25, we plan to only have the newer versions of the Python 
bindings available. To use the newer python bindings, where you import 
htcondor, import htcondor2 as htcondor. Also, where you import classad, 
import classad2 as classad.

If you find a defect in the original bindings, we will not fix it. 
However, let us know if the htcondor2/classad2 bindings have issues.

...Tim

On 8/25/25 10:22, Michael Thomas wrote:
> I'm still trying to come up with a simple reproducible test case for 
> this, but wanted to bring it up in case it's a known issue or sign 
> that I'm doing something wrong.
>
> I'm using the htcondor-24.10.2 python bindings to iterate over all 
> user jobs and job slots to calculate the total requested memory for 
> all jobs. ÂHowever, at some point the value returned by 
> collector.query.eval('RequestMemory') seems to return an 
> classad.ExprTree object, and when i try to do any debugging on that 
> object (using repr() or __str__ to inspect it) I get a segfault.
>
> This is code that I inherited from a now-defunct outside project, so 
> my understanding of what it's doing may be slightly flawed.
>
> Are there any known issues with printing out ExprTree objects?
>
> I'll continue to work on a simplified test case, and try to capture a 
> core dump if possible.
>
> --Mike
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--
Tim Theisen (he, him, his)
Release Manager
Center for High Throughput Computing
Department of Computer Sciences
University of Wisconsin - Madison
4261 Computer Sciences and Statistics
1210 W Dayton St
Madison, WI 53706-1685
+1 608 265 5736