import os
import os.path

home = os.getenv("a_HOME")
filepath = os.path.join(home, "components", "xxx", "etc", "static-data", "GenericEntityList.xml")
with open(filepath, 'r') as f:
    for line in f:
        print(line)
        lines = f.readlines()
        f.close()
home = os.getenv("b_home")
filepath = os.path.join(home, "components", "xxx", "etc", "static-data", "GenericEntityList.xml")
with open(filepath, 'r') as f:

        for line in f:
         if line!='</generic-entity-list>'+'\n':
          f.write(line)
        f.write('<entity>xx1</entity>\n')
        f.write('<entity>xx2</entity>\n')
        f.write('</generic-entity-list>\n')