Status of OpenStudio SDK python bindings

asked 2024-04-11 01:02:54 -0600

antonszilasi
1523 ●1 ●5 ●12

updated 2024-04-15 09:09:18 -0600

Julien Marrec

29716 ●94 ●76 http://www.effibem.com/

Hello all,

I am attempted to write a reporting measure with Python using the OpenStudio SDK, however, try as I might I ran into many problems with Python bindings not working as an example:

sqlFile = runner.lastEnergyPlusSqlFile().get() - # works

hours_simulated = sqlFile.hoursSimulated().get() -  # Returns an error then nothing

sqlFile.availableEnvPeriods() = # Returns nothing

So may I ask what is the current status of the Python bindings should I expect these to? It seems to me that it is still WIP.

Thank you,

Anton

answered 2024-04-15 11:43:49 -0600

Julien Marrec

29716 ●94 ●76 http://www.effibem.com/

updated 2024-04-15 12:20:42 -0600

Edit: I found the same behavior with Ruby. It's because the default measures do sql_file.close at the end. So you can't query it.

You need to do

if not sqlFile.connectionOpen():
    sqlFile.reopen()

Filed it at https://github.com/NREL/OpenStudio/is... for clarifications

First off, I understand the logic of thinking it's because Python Measures aren't prime ready that you're having an issue.

I don't have anything to go on to pinpoint exactly what's your problem, but I don't think it's related to Python Measures (until proven otherwise).

I can run a Python reporting measure fine. For example the template one at https://github.com/NREL/OpenStudio/bl...

Which you can generate from:

openstudio measure new -c PythonReporting -t ReportingMeasure -l Python -n "Python Reporting Measure" -d "A sample reporting measure in python " -m "Tests loading sql and co" --taxonomy-tag "Reporting.QAQC" ./python_reporting_measure

Here's a link to a working example: https://drive.google.com/file/d/1l7ug...