Created Issue: [0.3.x] russian letters kill !py REPL [13821]

```
>!py
>>> и
File "<console>", line 1


Traceback (most recent call last):

File "<string>", line 1, in <module>

File "C:\Python27.x64\Lib\code.py", line 243, in interact
more = self.push(line)

File "C:\Python27.x64\Lib\code.py", line 265, in push
more = self.runsource(source, self.filename)

File "C:\Python27.x64\Lib\code.py", line 79, in runsource
self.showsyntaxerror(filename)

File "C:\Python27.x64\Lib\code.py", line 139, in showsyntaxerror
map(self.write, list)

File "C:\Python27.x64\Lib\code.py", line 171, in write
sys.stderr.write(data)

UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 4: ordinal not in range(128)
```
Then !py REPL stops and returns to windbg command mode