def sanitize_module_name(module_name):
 module_name = module_name.replace('-', '_').replace('.', '_')
 if (module_name[0] not in string.ascii_letters):
  module_name = ('a' + module_name)
 return module_name

def sanitize_module_name ( module_name ) : module_name = module_name . replace ( '-' , '_' ) . replace ( '.' , '_' ) if ( module_name [ 0 ] not in string . ascii_letters ) : module_name = ( 'a' + module_name ) return module_name
sanitize the given module name .