Access std.map( str, MyClass )

[dneise]

I figured it out I had to create Dictionaries before I tried to work with these maps.

This post helped me a lot.

Std maps in PyROOT

[quote=“wlav”]Laurence, [quote=“lspiller”]It does have access to the std::map because the following code works:[/quote]no; each std::map instantiation is its own class and should thus carry its own dictionary. The fact that int, int works says nothing about other instantiations. As for the error that you see, did you first try:ROOT.gInterpreter.GenerateDictionary("map<TString,int>","map,TString.h") (note the comma instead of semi-colon) before the code that you posted? If so, wipe out all Aut…

So what I do now, is this:

import ROOT
ROOT.gROOT.ProcessLine(".L legacy.h+O")
ROOT.gInterpreter.GenerateDictionary("map<string,MyClass>","map;string;legacy.h")
ROOT.gSystem.Load("legacy_h.so")

Again some AutoDict files are generated of course, they look equal to the ones that were created, when I tried to create a map with

m = ROOT.std.map(str, ROOT.Legacy.MyClass)()

but this time it works. I guess the order matters a lot.

I still feel not quite sure what I am doing here and wonder if there is any good book/manual about this matter. So in case you know anything please let me know.
Thank you for your time.