code: def getiddfile(versionid):
      
      vlist = versionid.split('.')
      if len(vlist) == 1:
          vlist = vlist + ['0', '0']
      elif len(vlist) == 2:
          vlist = vlist + ['0']
      ver_str =  '-'.join(vlist)
      eplus_exe, _  = eppy.runner.run_functions.install_paths(ver_str)
      eplusfolder = os.path.dirname(eplus_exe)
      iddfile = '{}/Energy+.idd'.format(eplusfolder, )
      return iddfile
docs: find the IDD file of the E+ installation