[BUG] TypeError: unsupported operand type(s) for +: 'datetime.date' and 'datetime.date'

[verovaleros]

Describe the bug
Running AIP on the latest main/development throws the following error on the prioritise algorithms:

TypeError: unsupported operand type(s) for +: 'datetime.date' and 'datetime.date'

The error is caused by the following operation in the file lib/aip/models/prioritize.py:

AIP/lib/aip/models/prioritize.py

Line 62 in 0390167

knowledge = last_knowledge.groupby('orig').sum()

The error seems to be caused by the groupby().sum(), which tries to sum all columns in the grouped data, including the 'first_seen' and 'last_seen' columns, which are of type datetime.date.

To Reproduce

1. Clone main repository
2. Change dates from 2020 in various files to the dates where my Zeek data start
3. Build container: docker build --build-arg uid=1000 --file etc/docker/Dockerfile --tag aip:latest .
4. Run container: docker run --rm -v ${PWD}:/home/aip/AIP -v /opt/zeek/logs/:/home/aip/AIP/data/raw:ro -v ${PWD}/data/:/home/aip/AIP/data/:rw --name aip aip:latest bin/aip

Suggested solutions
One way to solve this would be to group by and sum all columns except those related with time:

cols_to_sum = ['flows', 'duration', 'bytes', 'packets', 'days_active',
               'mean_flows', 'mean_duration', 'mean_bytes', 'mean_packets']
knowledge = last_knowledge.groupby('orig')[cols_to_sum].sum()

The suggested modification seems to work in principle.

[verovaleros]

Fixed in #23