jaraco@host:~$ cat > test.py
uni = u"\u001A\u0BC3\u1451\U0001D10C"
print uni
jaraco@host:~$ python2.7 ./test.py > out.txt
Traceback (most recent call last):
  File "./test.py", line 2, in <module>
    print uni
UnicodeEncodeError: 'ascii' codec can't encode characters in position 1-3: ordinal not in range(128)