CSV Export does not work

[berland]

What happened? (You can include a screenshot if it helps explain)

Running CSV Export from the GUI makes Ert hang and output an endless loop of

QCoreApplication::exec: The event loop is already running
QCoreApplication::exec: The event loop is already running
QCoreApplication::exec: The event loop is already running
QCoreApplication::exec: The event loop is already running

What did you expect to happen?

No error message, and the filename "output.csv" to be produced with correct numbers.

steps to reproduce

• Run ert gui poly.ert
• Run ensemble_experiment
• Click 'Export data' from the 'Tools' menu
• Insert "*" in the text box "List of ensembles to export"
• Click 'Ok'

Environment where bug has been observed

• python 3.11
• python 3.12
• macosx
• rhel7
• rhel8
• ubuntu
• local queue
• lsf queue
• slurm queue
• openPBS queue

[larsevj]

Have not been able to reproduce this on ERT main on either RHEL8 or macos, with python3.11 and python3.12.