Can't make Eclipse (Luna) PyDev console use UTF-8 - eclipse

Question

In Eclipse Luna (4.0.4) / Python 3.4.1 I can't get the PyDev 3.6.0 console to work with Unicode despite having tried several recommended corrective steps.
I attempted this example in Dive Into Python 3: http://www.diveintopython3.net/files.html
If I do the example's a_file.read(), the PyDev console displays:
'Dive Into Python \u662f\u4e3a\u6709\u7ecf\u9a8c......' instead of 'Dive Into Python 是为有经验的程序员编写的一本...'
If I paste the Chinese characters into the PyDev console ala cstring = '是为有经验的程序员编写的一本', then in the console type "cstring ENTER', I again get '\u662f\u4e3a\u6709\u7ecf\u9a8c...'
If I then try print(cstring), I get the following error:
Traceback (most recent call last):
File "", line 1, in
File "C:\Python34\lib\encodings\cp1252.py", line 19, in encode
return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-13: character maps to
I don't know what do do with that information. The cp1252.py bit is at the heart of my confusion because I've told Eclipse and PyDev to use UTF-8 in every place I can find to do that, beginning with the information in the following:
Printing Unicode in eclipse Pydev console and in Idle
However, I cannot modify "site.py" as described in those steps because [EclipseInstallDir]/lib/site.py does not contain "encoding = ".
I can't figure out what to do next.

Answer 1

For regular runs:
The problem there is that the PYTHONIOENCODING is overridden by PyDev based on the encoding you used in the run configuration (which is the encoding used by the console view too -- so, it'd make no sense having a PYTHONIOENCODING with a value and the allocated console in the PyDev side with another value).
You can change the encoding you're using for a run configuration in:
Run > Run configurations > common > encoding.
By default it'll use the encoding of the file being launched (you can change the default encoding for the workspace in general > workspace > text file encoding).
For interactive console runs:
For interactive console runs there's currently no API to change the encoding in the java side, so, one has to start Eclipse itself in a VM that uses UTF-8 by default... In practice, this means that you have to add:
-Dfile.encoding=UTF-8
to the vmargs of Eclipse in eclipse.ini (and in this case it's also recommended to set the PYTHONIOENCODING environment variable in the related interpreter and set it to UTF-8).

Answer 2

Found it! (At least for Python 3.4.1, Eclipse Luna 4.0.4, PyDev 3.6.0.)
In Eclipse, in Preferences —> PyDev —> Interpreters —> Python Interpreter, in the Environment tab, I added the environment variable PYTHONIOENCODING and specified its value as utf-8.
The PyDev Interactive Console now properly displays the aforementioned Chinese characters (and Thai characters, too).