Add helper function for reading epoch and effarea

[tobiaskleiner]

Adding a small function to read out epoch and effective area from the anasum.root files using uproot. This avoids using the printAnasumRunParameter in the V2DL3 run script for containerized use with HTCondor.

[GernotMaier]

Could you change also the integration test (after lines

V2DL3/.github/workflows/v2dl3-eventdisplay.yml

Line 52 in 6d232b6

- name: Eventdisplay-pointlike

) to run without the effective area on the command line.

Does this actually work with the changes you have applied?

e.g.,

python pyV2DL3/script/v2dl3_for_Eventdisplay.py \
               -f ./64080.anasum.root \
                  --logfile test-pointlike.fits.log \
                  test-pointlike-CI.fits.gz|

Meaning only one argument for -f?

[GernotMaier]

See below, this is important to find the anasum file.

[GernotMaier]

Does this read a local file only? Can we change this so that the full file path (directory + file name) of the anasum file is the function argument?

[tobiaskleiner]

fixed

[GernotMaier]

What is going wrong?

V2DL3="../../V2DL3/"
ANASUMFILE="/lustre/fs24/group/veritas/shared/processed_data_v490.7//AP/anasum_moderate2tel/6//64554.anasum.root"
RUN=64554

result=$(python -c "from ${V2DL3}/utils/query_anasum_runparameters import get_epoch_effective_area; get_epoch_effective_area(${ANASUMFILE}, ${RUN})")
EPOCH=$(echo $result | cut -d',' -f1)
EFFAREA=$(echo $result | cut -d',' -f2)

gives me

%./dl3_test.sh
  File "<string>", line 1
    from ../../V2DL3//utils/query_anasum_runparameters import get_epoch_effective_area; get_epoch_effective_area(/lustre/fs24/group/veritas/shared/processed_data_v490.7//AP/anasum_moderate2tel/6//64554.anasum.root, 64554)
                                                                                                                                                                                                         ^
SyntaxError: invalid decimal literal

[GernotMaier]

Looks good (and we've tested it).