def available_access_systems():
 asList = []
 try:
  from parser.http import IMDbHTTPAccessSystem
  asList.append('http')
 except ImportError:
  pass
 try:
  from parser.mobile import IMDbMobileAccessSystem
  asList.append('mobile')
 except ImportError:
  pass
 try:
  from parser.sql import IMDbSqlAccessSystem
  asList.append('sql')
 except ImportError:
  pass
 return asList

def available_access_systems ( ) : asList = [ ] try : from parser . http import IMDbHTTPAccessSystem asList . append ( 'http' ) except ImportError : pass try : from parser . mobile import IMDbMobileAccessSystem asList . append ( 'mobile' ) except ImportError : pass try : from parser . sql import IMDbSqlAccessSystem asList . append ( 'sql' ) except ImportError : pass return asList
return the list of available data access systems .