python app: Fatal error: failed to write trace

I'm trying to collect trace for a python application. I'm using drrun drcachesim tool. It seems it can collect the results of the cache simulation but fails to collect offline trace. python app does take some input parameters which i have removed from the post. I think since it is able to collect the report that part was irrelevant to the error.

```
~/tools/DynamoRIO/DynamoRIO-x86_64-Linux-7.90.17998-0/bin64$ ./drrun -t drcachesim -offline -- /home/daenerys/anaconda3/envs/my_env/bin/python ~/bounding_box/bounding_box_deployed/myApp.py
Fatal error: failed to write trace
```

collect completed without -offline flag and reported the stat from cache simulation.