Unicode string index problem

[luoheng]

Hey, guys. I met a problem when indexing a unicode string.
Here is the code:

>>> string = "ábcdefg"
>>> string[0]
a

The index result is a, but I hope it is á. It seems the string index is based on unicode scalar rather than extended grapheme cluster.
Is there any way for me to get the real character á, or in other words, can I visit string in human readable pattern ?