I am using pycharm community version for python 3.6.1 as I'm beginner when i try to run simple tokenize program - 

```
import nltk
from nltk.tokenize import word_tokenize
word_tokenize(" hellow world im nltk")

```

I get the following error -

```
C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\python.exe E:/test/token.py
Traceback (most recent call last):
  File "E:/test/token.py", line 1, in <module>
    import nltk
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\site-packages\nltk\__init__.py", line 89, in <module>
    from nltk.internals import config_java
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\site-packages\nltk\internals.py", line 11, in <module>
    import subprocess
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\subprocess.py", line 126, in <module>
    import threading
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 7, in <module>
    from traceback import format_exc as _format_exc
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\traceback.py", line 5, in <module>
    import linecache
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\linecache.py", line 11, in <module>
    import tokenize
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\tokenize.py", line 35, in <module>
    from token import *
  File "E:\test\token.py", line 2, in <module>
    from nltk.tokenize import word_tokenize
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\site-packages\nltk\tokenize\__init__.py", line 64, in <module>
    from nltk.tokenize.mwe      import MWETokenizer
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\site-packages\nltk\tokenize\mwe.py", line 31, in <module>
    from nltk.util import Trie
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\site-packages\nltk\util.py", line 13, in <module>
    import pydoc
  File "C:\Users\Amnaa\AppData\Local\Programs\Python\Python36-32\lib\pydoc.py", line 72, in <module>
    from traceback import format_exception_only
ImportError: cannot import name 'format_exception_only'

Process finished with exit code 1

```