The iso-5589-15 is invalid encoding name, iso-8859-15 is the correct one

Encoding names were tested in the Python shell:

>>> u"test".encode('iso-5589-15')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
LookupError: unknown encoding: iso-5589-15
>>> u"test".encode('iso-8859-15')
'test'