I'm working on a Python script that reads an XML file encoded with UTF-8, does some manipulation with it and saves it to Google's Datastore (it's an App Engine program). 
The way I'm reading and parsing the files is just with file.readline() and a few regular expressions. The only problem is that the file I'm working with has characters from a lot of different languages in it, so for example, it might have an é or Å or Russian or Greek characters. 
I was getting an error like this at first: "UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 0: ordinal not in range(128)." I then tried switching the encoding on the file open to "ISO-8859-15" which gets rid of the error but the outputted characters aren't displayed right. 
So my question is: how to work with a file encoded in UTF-8 in Python without Python getting stuck on all of the special characters in the file? I hope this was clear enough, and thanks in advance for any advice.
You say you changed the encoding you use with the file to ISO-8859-1. Did you try changing it to UTF-8?
Doing File I/O in Python with non-ASCII Characters