backgroundInfo.py

#!/usr/bin/env python3
 

 
import basf2 as b2
from ROOT import Belle2
 
# -----------------------------------------------------------
# Prints BackgroundInfo stored in the root file
# Use -i switch to specify the input file
# -----------------------------------------------------------
 
 
class printBGInfo(b2.Module):
 
    '''
    Print BackgroundInfo stored in the root file
    '''
 
    def event(self):
        ''' event function '''
 
        bgInfo = Belle2.PyStoreObj('BackgroundInfo', 1)    # new version
        bgInfos = Belle2.PyStoreArray('BackgroundInfos', 1)  # old version
        if bgInfo.isValid():
            bgInfo.print()
        elif bgInfos.isValid():
            if bgInfos.getEntries() == 0:
                print("Background info is empty")
            i = 0
            for bgInfo in bgInfos:
                print("===========================")
                print("* Background info: entry", str(i))
                print("===========================")
                bgInfo.print()
                i += 1
        else:
            print("No background info available")
 
        evtMetaData = Belle2.PyStoreObj('EventMetaData')
        evtMetaData.obj().setEndOfData()
 
 
b2.set_log_level(b2.LogLevel.ERROR)
 
# Create path
main = b2.create_path()
 
# input
roinput = b2.register_module('RootInput')
main.add_module(roinput)
 
# print info
main.add_module(printBGInfo())
 
b2.process(main)