def test_version_compare():
 assert (highest_version(['1.0', '2.0', '0.1']) == '2.0')
 assert (highest_version(['1.0a1', '1.0']) == '1.0')

def test_version_compare ( ) : assert ( highest_version ( [ '1.0' , '2.0' , '0.1' ] ) == '2.0' ) assert ( highest_version ( [ '1.0a1' , '1.0' ] ) == '1.0' )
test version comparison .