Python files encoded in utf-8 are not run properly.

Steps to reproduce:
1. Create a new python project.
2. In the project properties, set encoding to "UTF8".
3. Create an new file with the following content:

# -*- coding: UTF-8 -*-
print u"à"

4. Run the project.  You get the following error:
Traceback (most recent call last):
  File "[…]\src\test.py", line 2, in <module>
    print u"à"
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe0' in position 0: ordinal not in range(128)

5. Run the file in a terminal, it works:
>python test.py
à
>