IS it possible to define that specific languages characters would be considered as word.
I.e. re do not accept ä,ö as word characters if i search them in following way

```
Ft=codecs.open('c:\\Python27\\Scripts\\finnish2\\textfields.txt','r','utf–8')
word=Ft.readlines()
word=smart_str(word, encoding='utf-8', strings_only=False, errors='replace')
word=re.sub('[^äÄöÖåÅA-Za-z0-9]',"""\[^A-Za-z0-9]*""", word) ; print 'word=  ', word #works in skipping ö,ä,å characters

```

I would like that these character would be included to [A-Za-z]. 
How to define this?