Getting the parameters from the root file through square brackets (#496)

Author: kjvbrt

python/do_plots.py

@@ -93,15 +93,15 @@ def determine_lumi_scaling(config: dict[str, Any],
 
     # Check if histograms were already scaled to lumi
     try:
-        scaled: bool = infile.scaled.GetVal()
+        scaled: bool = infile['scaled'].GetVal()
     except AttributeError:
         LOGGER.error('Input file does not contain scaling '
                      'information!\n  %s\nAborting...', infile.GetName())
         sys.exit(3)
 
     if scaled:
         try:
-            int_lumi_in_file: float = infile.intLumi.GetVal()
+            int_lumi_in_file: float = infile['intLumi'].GetVal()
         except AttributeError:
             LOGGER.error('Can not load integrated luminosity '
                          'value from the input file!\n  %s\n'