Type conversion from Python List to IRIS %List
Has anyone come across a good using Embedded Python to convert a Python List object to an IRIS %List object?
My use case is I want to open an SQL entry with an Objectscript class method, then pass some information from that row into a separate Python class method which will then create a Python List object, then have the Python class method return that list back to the Objectscript class method in such a way that the Python List can be converted to an IRIS %List object for me to then use in the Objectscript code.
Comments
Hi Robbie,
I had created a OpenExchange PythonHelper : https://openexchange.intersystems.com/package/PyHelper
// Create an IRIS List turn into a Python List set pyList=##class(alwo.PyHelper).toPyListOrString($LB(1,2,3,4,5,6)) // Write to terminal to check content zw pyList pyList=3@%SYS.Python ; [1, 2, 3, 4, 5, 6] ; <OREF> // Convert the Python List to a IRIS List set myIRISList=##class(alwo.PyHelper).ListFrompyList(.pyList) // Output to terminal to confirm zw myIRISList myIRISList=$lb(1,2,3,4,5,6)
Any feedback welcome.
You can send the List by reference to the Python method, populate it inside the method and use the populated list from the objectscript who call it.
Something like this:
set listOfStrings = ##class("%Library.ListOfDataTypes").%New()
do..TestPython(listOfStrings)
$$$TRACE("What a beautiful trace! There are "_listOfStrings.Count()_" element(s)")
...
...
ClassMethod TestPython(ByRef listOfStrings As%List) [ Language = python ]
{
import iris
listOfStrings.Insert("One")
listOfStrings.Insert("Two")
listOfStrings.Insert("Three")
return1
}Perfect, that's exactly what I needed! Thanks!