nltk UnicodeDecoderError

Python version: 2.7
Windows version: Windows 7 64-bit
Language of the system: Chinese
After downloading the nltk package, here comes a problem when importing.
Here is my code:

>>>import nltk

However, I get the following error:

Traceback (most recent call last):
  File "C:\Users\Александр\Desktop\TextBlob.py", line 1, in <module>
    import textblob
  File "C:\Python27\lib\site-packages\textblob\__init__.py", line 9, in <module>
   from .blob import TextBlob, Word, Sentence, Blobber, WordList
   File "C:\Python27\lib\site-packages\textblob\blob.py", line 28, in <module>
    import nltk
  File "C:\Python27\lib\site-packages\nltk\__init__.py", line 128, in <module>
    from nltk.chunk import *
  File "C:\Python27\lib\site-packages\nltk\chunk\__init__.py", line 155, in <module>
   from nltk.data import load
  File "C:\Python27\lib\site-packages\nltk\data.py", line 77, in <module>
    if 'APPENGINE_RUNTIME' not in os.environ and os.path.expanduser('~/') != '~/':
  File "C:\Python27\lib\ntpath.py", line 311, in expanduser
    return userhome + path[i:]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc0 in position 9: ordinal not in range(128)
>>>

Just as illustrated above, the problem is related to language coding problems of ntpath.py
From Google and Stackoverflow, a solution works fine.
I inserted following part into ntpath.py:

reload(sys)
sys.setdefaultencoding('Cp1252')

And the code in this file has been changed to:

import os
import sys
import stat
import genericpath
import warnings

#change
reload(sys)
sys.setdefaultencoding('Cp1252')

Finally, it works well.