def idfunc(vals):
 dtype = re.compile('float\\d\\d').search('{}'.format(vals[1])).group()
 return '{}_{}'.format(vals[0], dtype)

def idfunc ( vals ) : dtype = re . compile ( 'float\\d\\d' ) . search ( '{}' . format ( vals [ 1 ] ) ) . group ( ) return '{}_{}' . format ( vals [ 0 ] , dtype )
print out a human readable format for the parameterized tests .